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Topics created by openhardware.io

💬 air quality motherboard for sensor.community project
OpenHardware.io • sensor.community luftdaten dust sensor • 9 days ago • openhardware.io 9 days ago

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💬 Syma S107 Bluetooth mod (connect any toy with your phone!)
OpenHardware.io • nrf52832 nrf52 remote control hack bluetooth low energy toys • 29 Aug 2023, 11:13 • openhardware.io 29 Aug 2023, 11:13

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💬 SimSpirit Motion Simulator Support 360° Yaw, Pitch and Roll
OpenHardware.io • motion-simulator head-tracking • 10 Jul 2023, 16:54 • openhardware.io 10 Jul 2023, 16:54

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💬 VR-Shield
OpenHardware.io • bluetooth shield sensors virtual reality imus • 10 May 2023, 10:20 • openhardware.io 10 May 2023, 10:20

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💬 Epi 32U4 Arduino-compatible, 4-layer version
OpenHardware.io • arduino usb micro mcu atmega keyboard atmega32u4 • 4 Feb 2023, 13:41 • openhardware.io 4 Feb 2023, 13:41

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💬 Pinect Hand-Free Game Console
OpenHardware.io • arduino pcb motion sensor console game android scheme camera • 26 Jan 2023, 17:52 • openhardware.io 26 Jan 2023, 17:52

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💬 Easy Switch Box
OpenHardware.io • mysensors arduino switch atmega328 lora low power • 14 Dec 2022, 20:57 • openhardware.io 14 Dec 2022, 20:57

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💬 VikingCube-WT
OpenHardware.io • modularsynth oscillator adsr vca • 2 Dec 2022, 06:57 • openhardware.io 2 Dec 2022, 06:57

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💬 VikingCube-Midi
OpenHardware.io • modularsynth usb-midi • 2 Dec 2022, 06:57 • openhardware.io 2 Dec 2022, 06:57

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💬 6Gang30AmpsLatchRelayEspHomeReady
OpenHardware.io • power esp32 mains voltage esphome matter latching relay • 29 Nov 2022, 19:11 • openhardware.io 1 Dec 2022, 06:49

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1 Dec 2022, 06:49

Incredible. The "yeah it's a hobby" terrain has been left far behind.
💬 VikingCube-MUL
OpenHardware.io • modularsynth passivemul • 26 Nov 2022, 13:41 • openhardware.io 26 Nov 2022, 13:41

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💬 Anna2040 RP2040 Uno-shaped board
OpenHardware.io • arduino uno arduino uno pico • 25 Nov 2022, 18:24 • openhardware.io 25 Nov 2022, 18:24

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💬 Hammar 32 bit 3D printer controller
OpenHardware.io • esp32 3d print reprap 3d printer cnc marlin wroom-32 • 25 Nov 2022, 15:53 • openhardware.io 25 Nov 2022, 15:53

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💬 TinyReflow solder plate
OpenHardware.io • arduino smd soldering solder reflow • 8 Nov 2022, 19:43 • openhardware.io 14 Nov 2022, 12:07

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14 Nov 2022, 12:07

I'm not familiar with the project that inspired this one, but you should pay attention to hot spots, heat should be equally spread across the whole plate. plus you should have good sensors and provide controllable configuration of heat points for soldering different components according to the manufacturer's datasheet.
💬 Epi, tiny ATMega32U4 Arduino-compatible
OpenHardware.io • arduino micro keyboard • 8 Nov 2022, 19:08 • openhardware.io 8 Nov 2022, 19:08

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💬 Hematuria Meter
OpenHardware.io • arduino spectrophotometer weight sensor 3d printed • 31 Oct 2022, 06:41 • openhardware.io 31 Oct 2022, 06:41

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💬 Home Energy Sensor
OpenHardware.io • energy monitor home automation esphome • 21 Sept 2022, 05:45 • openhardware.io 21 Sept 2022, 05:45

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💬 Rosmo:Bot
OpenHardware.io • 21 Sept 2022, 05:45 • openhardware.io 21 Sept 2022, 05:45

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💬 backup power auto-switch circuit
OpenHardware.io • power module • 4 Aug 2022, 14:52 • openhardware.io 12 Sept 2022, 14:09

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12 Sept 2022, 14:09

@NeverDie Based on my simulation and testing it's not a problem, yet I can look at it and check it's transient response.
💬 Small arduino pro mini rfm69 shield
OpenHardware.io • mysensors rfm69 arduino pro mini • 2 Aug 2022, 15:03 • openhardware.io 3 Aug 2022, 00:26

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3 Aug 2022, 00:26

Here's a similar project: https://www.openhardware.io/view/268/Arduino-Pro-Mini-Shield-for-RFM69HW
💬 BC805M (nRF52805) development board integrated with nRF52-DK
OpenHardware.io • 5 Jul 2022, 21:14 • openhardware.io 11 Jul 2022, 22:37

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11 Jul 2022, 22:37

Well, I was able to artificially raise the CTS line, which is active low, and halt the transmissions, so I don't think the problem is with the UARTE on the nRF52x. Rather, I think the problem may be with how virtual com ports are handled on PC's, and maybe they aren't configured to properly use RTS and CTS for flow control. At any rate, I was able to crank the UARTE transmission speed all the way up to 941176 baud, and at that speed it takes only a very small artificial delay (around 300usec) after each transmitted string to avoid problems, so I'm just going to do that and move on rather than chase down how to get perfect RTS/CTS working on a PC's virtual com port. So, for that reason, this PCB project will still have value when its finished by keeping the "wiring" all within a single PCB rather than strewn about externally with a rat's nest of actual wires.
💬 nRF52-DK external programming shield
OpenHardware.io • 5 Jul 2022, 17:33 • openhardware.io 5 Jul 2022, 17:33

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💬 XL Proto-Breadboard
OpenHardware.io • 29 Jun 2022, 19:02 • openhardware.io 29 Jun 2022, 19:02

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💬 Fork of BigClive AA Battery Trickle Charger
OpenHardware.io • 26 Jun 2022, 23:45 • openhardware.io 21 Jan 2023, 17:58

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21 Jan 2023, 17:58

The short answer is no. Regular battery chargers are designed to deliver higher constant voltage to the battery charging it much faster, however the trickle chargers deliver a slow charge to your battery and are designed to be left on your battery for extended periods of time.
💬 nRF24L01 Adapter Board (AH)
OpenHardware.io • mysensors • 22 Jun 2022, 05:35 • openhardware.io 22 Jun 2022, 05:35

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💬 Ra-01 400Mhz LoRa AI-Thinker adapter board
OpenHardware.io • 6 Jun 2022, 15:24 • openhardware.io 6 Jun 2022, 15:24

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💬 RFM69 900Mhz Adapter Board
OpenHardware.io • 6 Jun 2022, 15:22 • openhardware.io 6 Jun 2022, 15:22

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💬 nRF24L01 adapter board
OpenHardware.io • 6 Jun 2022, 15:19 • openhardware.io 6 Jun 2022, 15:19

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💬 Ra-01SH 900MHz AI-Thinker LoRa adapter board
OpenHardware.io • 6 Jun 2022, 15:17 • openhardware.io 6 Jun 2022, 15:17

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💬 DRF1262T/G 900Mhz LoRa adapter board
OpenHardware.io • 6 Jun 2022, 15:16 • openhardware.io 6 Jun 2022, 15:16

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💬 E28-2G4M27S adapter for v2.0 atmega328p test platform
OpenHardware.io • 30 May 2022, 04:08 • openhardware.io 30 May 2022, 04:08

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💬 Version 3.0 atmega328p test platform
OpenHardware.io • 30 May 2022, 04:03 • openhardware.io 16 Jul 2022, 01:07

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@alphaHotel said in Version 3.0 atmega328p test platform: @NeverDie Awesome. thanks. I uploaded the files for version 3.0, including the KiCad 6.0 project archive as a .zip file contained within the .rar file. As it has already served its purpose for me, I didn't meddle with the spacing on the batteries, but I did go out of my way to avoid possible short-circuits between the battery holder and traces on the PCB. Enjoy!
💬 MySensors TouchScreen Thermostat on Arduino Mega PRO
OpenHardware.io • 22 May 2022, 14:42 • openhardware.io 22 May 2022, 14:42

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💬 EBYTE E28-2G4M27S (SX-1280 chip) 2.4GHz LoRa Breakout Board
OpenHardware.io • 1 Apr 2022, 07:36 • openhardware.io 1 Apr 2022, 07:36

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💬 Yet Another WLED Controller
OpenHardware.io • wled • 20 Feb 2022, 21:43 • openhardware.io 20 Feb 2022, 21:43

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💬 Reperter/Gateway USB Mysensors
OpenHardware.io • gateway mysensor seeduino xiao repeter fumeebeleue • 5 Feb 2022, 17:10 • openhardware.io 5 Feb 2022, 17:10

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💬 ESP fil pilote SMD version
OpenHardware.io • heater command esp8266 • 25 Nov 2021, 14:09 • openhardware.io 25 Nov 2021, 14:09

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💬 mySensor 3*Relay Din Format
OpenHardware.io • mysensor nrf52832 din • 27 Oct 2021, 17:03 • openhardware.io 27 Oct 2021, 17:03

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💬 Valden: Heat Pump Controller
OpenHardware.io • arduino power diy thermostat heating gerber refrigerant refrigeration compressor rs-485 green-energy heat-pump eev txv cappilary heat-exchange • 4 Sept 2021, 06:43 • openhardware.io 4 Sept 2021, 06:43

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💬 ADP5054 Quad Buck Regulator For FPGA And Processor
OpenHardware.io • pcbdesign circuitdesign powercircuit analogdevices • 29 Aug 2021, 17:57 • openhardware.io 29 Aug 2021, 17:57

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💬 0V85-30A Buck Converter for FPGA using TPS549D22
OpenHardware.io • pcbdesign circuitdesign powercicuit • 28 Aug 2021, 06:34 • openhardware.io 28 Aug 2021, 06:34

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💬 Arduino Based Serial Controller For Welding Machine
OpenHardware.io • arduino controller adc dac • 27 Aug 2021, 07:05 • openhardware.io 27 Aug 2021, 07:05

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💬 A Step-Down Switching Regulator Using MP1584
OpenHardware.io • powermodule step-down switching regulator • 26 Aug 2021, 14:07 • openhardware.io 26 Aug 2021, 14:07

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💬 Tactile and Pushbutton Switches Module
OpenHardware.io • switch board tactile switch pushbutton switch • 25 Aug 2021, 15:33 • openhardware.io 25 Aug 2021, 15:33

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💬 Detecting Mains Voltage Module
OpenHardware.io • sensor mains voltage ac sensor ac detection • 25 Aug 2021, 08:35 • openhardware.io 25 Aug 2021, 08:35

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💬 miBlackHomeSVR
OpenHardware.io • raspberry rs485 iot lora home automation • 20 Aug 2021, 05:36 • openhardware.io 20 Aug 2021, 05:36

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💬 7-Segment LEDs Module Using Shift Register CD74HC595
OpenHardware.io • 7-segment led 74hc595 shift register • 15 Aug 2021, 06:54 • openhardware.io 15 Aug 2021, 06:54

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💬 Raspberry Pi Fan Breakout
OpenHardware.io • raspberry pi raspberry gpio breakout board raspberry pi 3 fan breakout • 20 Jul 2021, 13:31 • openhardware.io 20 Jul 2021, 13:31

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💬 HVAC Recuperator control
OpenHardware.io • mysensors hvac recuperator • 18 Jul 2021, 17:33 • openhardware.io 18 Jul 2021, 17:33

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💬 Air quality and weather forecast sensor
OpenHardware.io • nrf52840 bme280 air quality weather forecast nrf52833 sgp40 max44009 • 25 May 2021, 09:25 • openhardware.io 8 Jul 2021, 11:33

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8 Jul 2021, 11:33

https://hackaday.com/2021/07/05/diy-air-quality-sensor/
💬 Fairy light led string controller
OpenHardware.io • fairylight • 23 May 2021, 14:17 • openhardware.io 23 May 2021, 14:17

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💬 Uno Gateway shield NRF24L01+ version
OpenHardware.io • gateway arduino uno nrf24l01+ • 23 May 2021, 12:13 • openhardware.io 23 May 2021, 12:26

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23 May 2021, 12:26

I've been experimenting with PCB design the last few weeks. I'm currently using an Arduino Uno as my Gateway with everything mounted on a breadboard and dupont cables. As it doesn't have the waf factor I promised my better half to make a nice enclosure for it, but for that I had to create a shield. This one is for my NRF24L01+ network. My latest sensors all work on RFM96 with the MySensors Gateway. But as you can order it almost fully mounted I think it's a nice entrance level solution for those who want to start with MySensors without having all the problems I've seen on this forum. You simple mount the shield - maybe solder the radio - upload the code and you're got to go in 10 - 20 minutes.
💬 RFM Linky
OpenHardware.io • arduino arduino pro mini energy monitor energy meter edf enedis linky • 3 Apr 2021, 17:05 • openhardware.io 3 Apr 2021, 17:05

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💬 MqGateway
OpenHardware.io • gateway mqtt wired • 16 Mar 2021, 20:15 • openhardware.io 31 Aug 2022, 20:18

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31 Aug 2022, 20:18

https://web.archive.org/web/20201201193332/https://github.com/aetas/mqgateway might be somewhat useful
💬 Capacitive Soil Moisture Sensor
OpenHardware.io • mysensors nrf24l01+ atmega328p soil moisture capacitive soil moisture • 14 Mar 2021, 23:14 • openhardware.io 14 Jan 2022, 15:42

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@Ron said in Capacitive Soil Moisture Sensor: @Puneit-Thukral Thanks. I am not quite sure, so correct me please if I am wrong, but I think I am already using the MiniCore bootloader with platformIO. Or do I need to configure to explicitly use the MiniCore bootloaders? Also I have set BOD to disabled as I read somewhere that no BOD can also save battery. hi I'm not sure, but I believe I'm already using the MiniCore bootloader with platformIO. Please tell me if I'm incorrect. Is it necessary to set the MiniCore bootloaders explicitly?
💬 Universal Inputs Modbus Module
OpenHardware.io • relay modbus analog digital input universal inputs • 23 Feb 2021, 00:30 • openhardware.io 23 Feb 2021, 13:51

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23 Feb 2021, 13:51

I'm looking for a person to collaborate on writing an FW for the UMI6R2 board in the Arduino IDE.
💬 LCDUINO
OpenHardware.io • serial arduino nano lcd uart • 23 Feb 2021, 00:29 • openhardware.io 3 May 2021, 08:35

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@NeverDie said in LCDUINO: the LCD components don't appear to be named, not even on the schematic Looks like a typical text LCD like 1602 on the picture.
💬 Arduino NANO sensor board
OpenHardware.io • arduino nano sensor board • 19 Feb 2021, 16:11 • openhardware.io 19 Feb 2021, 16:11

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💬 MySX Power Board 18650
OpenHardware.io • battery power power supply mysx 18650 • 23 Jan 2021, 11:33 • openhardware.io 23 Jan 2021, 11:33

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💬 EFEKTA V4 Temp&Hum&Press sensor with E-Ink 1.54
OpenHardware.io • nrf52832 nrf52 si7021 nrf52840 bme280 htu21d sht21 e-ink display nrf52833 • 29 Dec 2020, 18:48 • openhardware.io 29 Dec 2020, 18:48

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💬 Leaky - water detector
OpenHardware.io • mqtt esp8266 home assistant water leak • 12 Dec 2020, 08:10 • openhardware.io 21 Dec 2020, 09:53

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21 Dec 2020, 09:53

@kimot Thank you for your comment & tips.
💬 MySX Prototype board
OpenHardware.io • mysx prototype • 2 Dec 2020, 13:30 • openhardware.io 2 Dec 2020, 13:30

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💬 InlineCleaner
OpenHardware.io • super8 film cleaner film cleaner super 8 • 23 Nov 2020, 12:36 • openhardware.io 24 Nov 2020, 06:32

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24 Nov 2020, 06:32

@openhardware-io Hi, the link you gave in your description isn't working: "One pack of Greenstar replacement rollers https://www.hagebau.de/p/renovo-ersatzwalzen-greenstar-6-cm-3-stueck-anHG_PROD_4046806013680/ Costs: 3,99 €" I did find the following, though the price is different from what you reported, and it looks different than what's in your photo: https://www.hagebau.de/p/renovo-farbwalze-greenstar-25-cm-12-mm-florhoehe-weiss-gruen-blau-anP7000129076/?searchType=devided&q=greenstar rollers&itemId=B1072454 Are you actually unwinding the nap of a paint roller and using it in your machine as a dust remover?
💬 Mini weather station with e-ink 2.9 Inch
OpenHardware.io • mysensor nrf52 bme280 weather forecast • 30 Oct 2020, 15:26 • openhardware.io 8 Jul 2021, 11:36

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added support for E-Ink DES to the project. Further test in the refrigerator
💬 CMSIS-DAP
OpenHardware.io • stm32 debugger • 3 Oct 2020, 18:04 • openhardware.io 3 Oct 2020, 18:04

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💬 Simple compact RS485 node v2 (ATmega328 + MAX3485 + W25X40)
OpenHardware.io • 22 Sept 2020, 17:04 • openhardware.io 14 Oct 2020, 14:56

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14 Oct 2020, 14:56

Most likely you are right, nevertheless, all my simple devices are working correctly, the only problem that I have encountered is a problem when flashing some controllers through the USBASP.
💬 Mini temperature and humidity sensor with e-ink 1.02 Inch
OpenHardware.io • nrf52832 si7021 htu21d nrf52811 sht21 nrf52810 sht20 e-paper e-ink • 11 Sept 2020, 15:55 • openhardware.io 14 Mar 2021, 13:25

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14 Mar 2021, 13:25

https://hackaday.io/project/178235-mini-thermometer-hygrometer-with-e-paper-on-nrf5
💬 MyGateway
OpenHardware.io • mysensors gateway rfm69 ethernet poe • 18 Aug 2020, 03:59 • openhardware.io 6 days ago

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Oh, I never even thought of that as a possibility. I really like KiCad, and it's my preference. For a while I had Eagle for work, but even then I still preferred KiCad whenever I was given a choice.
💬 PulseTAC
OpenHardware.io • 12 Aug 2020, 20:10 • openhardware.io 13 Aug 2020, 12:59

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13 Aug 2020, 12:59

Nice project!
💬 IRShine
OpenHardware.io • 12 Aug 2020, 20:09 • openhardware.io 12 Aug 2020, 20:09

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💬 Capacitive touch switch module with LED illumination
OpenHardware.io • 31 Jul 2020, 15:21 • openhardware.io 31 Jul 2020, 15:21

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💬 MICRO MULTI SENSOR
OpenHardware.io • nrf52832 si7021 bme280 cr2032 htu21d nrf52811 sht20 nrf52810 tmp117 lmt01 lis2dw12 lis2dh12 • 22 Jul 2020, 19:25 • openhardware.io 23 Jul 2020, 05:01

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23 Jul 2020, 05:01

Looks great! Very nice integration with the box you found. Keep up the good work.
💬 Personal EPD terminal
OpenHardware.io • weather forecast epd message push • 15 Jul 2020, 20:07 • openhardware.io 16 Jul 2020, 02:14

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16 Jul 2020, 02:14

Needs a BOM.
💬 MySX STM32 BluePill
OpenHardware.io • mysx stm32 bluepill • 10 Jul 2020, 20:46 • openhardware.io 10 Jul 2020, 20:46

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💬 MySX Relay 4
OpenHardware.io • relay mysx • 8 Jul 2020, 08:29 • openhardware.io 8 Jul 2020, 08:29

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💬 ESP8266 Power Monitor
OpenHardware.io • 2 Jul 2020, 08:12 • openhardware.io 20 Jul 2020, 15:52

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20 Jul 2020, 15:52

Thanks for sharing. I have the same monitor.
💬 Segment serial indicator&encoder
OpenHardware.io • encoder serial indicator • 23 Jun 2020, 10:11 • openhardware.io 7 Jul 2020, 18:11

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7 Jul 2020, 18:11

I will prepare a programmatic example of the application of the module, for example, with the Arduino Pro Mini. It will take some time. Thank you for the positive comment of my development.
💬 nRF52840 MINI DEV BOARD EFEKTA
OpenHardware.io • nrf52840 • 18 Jun 2020, 16:38 • openhardware.io 27 Apr 2021, 09:00

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Ok, finally it's solved. I installed everything from scratch. Then installed your sandeep lib from your github. And finally added the LEDs and Buttons to the variants.h. That compiled successfully. And my problem was that the sensor is sleeping and I couldn'T get a heartbeat answered. So everything is clear and now testing...
💬 MySensors RS-485 Universal Module
OpenHardware.io • mysensors sensor rs485 button 485 wall plate • 18 Jun 2020, 05:45 • openhardware.io 18 Jun 2020, 18:40

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18 Jun 2020, 18:40

@YuryPol as far as I know, all licenses require some form of documentation. In all cases I know of, this is documented with the license or on the licenses official site.
💬 ESPboy: Games, IoT, STEM for education & fun (ESP8266 core)
OpenHardware.io • arduino esp8266 iot diy console gadget retro game • 9 Jun 2020, 18:29 • openhardware.io 14 May 2021, 03:04

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14 May 2021, 03:04

I think these look very interesting to do with small children may be able to stimulate their curiosity, the current video games are too much influence on children, occasionally the family together to do their own small games is a new experience.
💬 MDMSNode "Lighting X3" (based on ESP8266)
OpenHardware.io • relay temperature esp8266 ota wifi acdc tasmota • 4 Jun 2020, 12:20 • openhardware.io 20 Jul 2020, 16:03

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20 Jul 2020, 16:03

First batch of devices arrived. Looks fine. I hope I will manage to install it in garden to the end of the week.
💬 A smart clock
OpenHardware.io • clock mysensors • 1 Jun 2020, 12:09 • openhardware.io 15 Aug 2020, 09:16

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@Raj-Kiran you can use any 3mm LED. So the best is to choose the cheapest 3mm you can find on ALIEXPRESS.
💬 Neotron 32
OpenHardware.io • 31 May 2020, 20:16 • openhardware.io 31 May 2020, 20:16

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💬 EFEKTA WIRELESS TEMPERATURE & HUMIDITY SENSOR V1 | nRF52840
OpenHardware.io • battery temperature & humidity sensor nrf52840 • 29 May 2020, 16:35 • openhardware.io 29 May 2020, 16:35

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💬 MySensors Battery node 2xAAA for SI/BME/SHT
OpenHardware.io • mysensors temperature & humidity sensor battery sensor • 19 Apr 2020, 12:11 • openhardware.io 19 Apr 2020, 12:11

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💬 STM32 Ethernet-RS485 MySensors Gate
OpenHardware.io • stm32 ethernet rs485 mysensors • 11 Apr 2020, 17:04 • openhardware.io 11 Apr 2020, 17:04

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💬 PIC16F877A Kit
OpenHardware.io • mcu pic pic16f877a kit • 5 Apr 2020, 18:32 • openhardware.io 6 Apr 2020, 05:09

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I'm curious about PICs. Do you like PICs more than AVRs, and if so, why?
💬 Nordic-Switch
OpenHardware.io • nrf52832 iot dimmer ble lighing • 27 Mar 2020, 09:27 • openhardware.io 27 Mar 2020, 09:27

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💬 Minimal LiPo powered Arduino Pro Mini + RFM95 MySensors node
OpenHardware.io • mysensors pro mini bme280 rfm95 • 24 Mar 2020, 09:18 • openhardware.io 13 Jan 2022, 18:32

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Hi @chey, no, with the pro minis and MySensors lib I couldn't get less. Didn't measure with yet another multimeter though... My battery sensors are working now for about a year and the battery levels are between 65% and 70%. The sensor furthest from the gateway is at 65% and the 3 others at 70%. Not bad I think. https://forum.mysensors.org/topic/11499/checking-mechanical-locked-doors-by-a-battery-based-windows-door-sensor-node
💬 MP1584EN DC-DC Buck Converter Power Module
OpenHardware.io • powermodule iots • 21 Mar 2020, 12:35 • openhardware.io 21 Mar 2020, 12:35

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💬 SPDT 12VDC 10A Relay Module
OpenHardware.io • relay iots • 21 Mar 2020, 08:02 • openhardware.io 21 Mar 2020, 08:02

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💬 Wireless Module for Capacitive Soil Moisture Sensor v2.0
OpenHardware.io • 12 Mar 2020, 15:24 • openhardware.io 14 Jun 2023, 01:42

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Could you share the capacitor values?
💬 ESP WaterMeter
OpenHardware.io • arduino esp8266 domoticz esp fumée bleue jeedom • 4 Mar 2020, 08:21 • openhardware.io 4 Mar 2020, 08:21

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💬 Open Close sensor + shock and magnetic field sensors.
OpenHardware.io • nrf52840 nrf52811 open сlose sensor shock sensor magnetic field • 21 Feb 2020, 00:57 • openhardware.io 10 Apr 2020, 09:31

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Hi, I complied your code for NRF51822 chip but I am getting the following errors at compile Arduino: 1.8.11 (Mac OS X), Board: "MyBoardNRF5 nRF51822, 16 kB RAM, 256 kB flash (xxaa), None, Crystal Oscillator" WARNING: library LIS2DW12-master claims to run on stm32, avr, sam architecture(s) and may be incompatible with your current board which runs on nRF5 architecture(s). /Users/puneit/Google Drive/MySensor/NRF51822/doorsensor/doorsensor.ino: In function 'void board_Init()': doorsensor:417:3: error: 'NRF_NFCT' was not declared in this scope NRF_NFCT->TASKS_DISABLE = 1; ^ doorsensor:419:13: error: 'struct NRF_UICR_Type' has no member named 'NFCPINS' NRF_UICR->NFCPINS = 0; ^ doorsensor:421:3: error: 'NRF_SAADC' was not declared in this scope NRF_SAADC ->ENABLE = 0; ^ doorsensor:422:3: error: 'NRF_PWM0' was not declared in this scope NRF_PWM0 ->ENABLE = 0; ^ doorsensor:423:3: error: 'NRF_PWM1' was not declared in this scope NRF_PWM1 ->ENABLE = 0; ^ doorsensor:424:3: error: 'NRF_PWM2' was not declared in this scope NRF_PWM2 ->ENABLE = 0; ^ doorsensor:425:3: error: 'NRF_TWIM1' was not declared in this scope NRF_TWIM1 ->ENABLE = 0; ^ doorsensor:426:3: error: 'NRF_TWIS1' was not declared in this scope NRF_TWIS1 ->ENABLE = 0; ^ Multiple libraries were found for "Wire.h" Used: /Users/puneit/Library/Arduino15/packages/sandeepmistry/hardware/nRF5/0.6.0/libraries/Wire Not used: /Users/puneit/Documents/Arduino/libraries/Wire Multiple libraries were found for "SPI.h" Used: /Users/puneit/Library/Arduino15/packages/sandeepmistry/hardware/nRF5/0.6.0/libraries/SPI Not used: /Users/puneit/Documents/Arduino/libraries/SPI exit status 1 'NRF_NFCT' was not declared in this scope Invalid library found in /Users/puneit/Documents/Arduino/libraries/ESP8266SdFat: no headers files (.h) found in /Users/puneit/Documents/Arduino/libraries/ESP8266SdFat Invalid library found in /Users/puneit/Documents/Arduino/libraries/SoftwareSerial: no headers files (.h) found in /Users/puneit/Documents/Arduino/libraries/SoftwareSerial Invalid library found in /Users/puneit/Documents/Arduino/libraries/ArduinoHwNRF5-master: no headers files (.h) found in /Users/puneit/Documents/Arduino/libraries/ArduinoHwNRF5-master Invalid library found in /Users/puneit/Documents/Arduino/libraries/arduino-nRF5-master: no headers files (.h) found in /Users/puneit/Documents/Arduino/libraries/arduino-nRF5-master Invalid library found in /Users/puneit/Documents/Arduino/libraries/ArduinoBoards-master: no headers files (.h) found in /Users/puneit/Documents/Arduino/libraries/ArduinoBoards-master This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.
💬 nRF24L01 to RFM69CW/RFM69HCW/RFM69W/ Adapter
OpenHardware.io • nrf24l01 rfm69hcw rfm69cw rfm69w • 16 Feb 2020, 03:08 • openhardware.io 16 Feb 2020, 03:08

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💬 NRF52832 2 channel control plate for in wall switch
OpenHardware.io • 14 Feb 2020, 16:35 • openhardware.io 14 Feb 2020, 16:35

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💬 NRF52832 1 channel control plate for in wall switch
OpenHardware.io • 14 Feb 2020, 16:35 • openhardware.io 14 Apr 2020, 08:35

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14 Apr 2020, 08:35

@jeremushka Same software can be used. The pin definitions need to be changed though.
💬 MySensors compact (junction box) relay
OpenHardware.io • mysensors relay 220v • 3 Feb 2020, 19:01 • openhardware.io 3 Feb 2020, 19:01

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💬 MySensors Battery Relay
OpenHardware.io • 1 Feb 2020, 13:18 • openhardware.io 29 Apr 2020, 01:03

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29 Apr 2020, 01:03

Thanks for sharing. How did you get low current while still checking messages frequently enough? Or do you only check for messages every hour or so?
💬 24LEDs
OpenHardware.io • led microcontroller attiny2313 • 22 Dec 2019, 16:45 • openhardware.io 24 Dec 2019, 21:05

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24 Dec 2019, 21:05

Good point! Will consider in the next version...
💬 No neutral power supply/relay board for in wall switch
OpenHardware.io • switch power supply • 21 Dec 2019, 12:50 • openhardware.io 7 May 2020, 17:32

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7 May 2020, 17:32

@berkseo Yes, it's available here. The documentation is a little bit scarce I admit but if you understand Apache MyNewt and its build system it should be pretty straightforward theoretically. I will add more details when I have the time. The code was tested and it's in production. Works without a glitch so far.
💬 Arduino Pro Mini 3,3V PCB for RFM95/96
OpenHardware.io • arduino pro mini rfm69hcw rfm95 rfm69cw • 9 Dec 2019, 17:42 • openhardware.io 10 Dec 2019, 20:12

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10 Dec 2019, 20:12

Sure, there is already the KiCAD file including everything to play around with on your own; added a picture of the schematic here for a quick glance without downloading.
💬 mySensors Hit Train
OpenHardware.io • mysensors christimas train • 7 Dec 2019, 14:52 • openhardware.io 7 Dec 2019, 14:52

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💬 The Harvester: ultimate power supply for the Raybeacon DK
OpenHardware.io • power supply usb charger solar raytrails mppt teg • 6 Dec 2019, 16:59 • openhardware.io 27 Sept 2020, 22:11

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@NeverDie said in The Harvester: ultimate power supply for the Raybeacon DK: Edit: This guy found another couple of possibilities as to what the E50D chip might be: https://www.electroschematics.com/pfm-module-circuit-surgery/ I have the same board as this guy. I removed the LED and resistor because they are on the input side, so they are almost useless anyway. For a board such as this, with a promised 0.9v startup voltage on the input side and a promised 5v on the output side, they really should have been attached to the output, not the input, to show roughly when it is that the board is producing useable output. At a 20mv "keep alive" input voltage, the input measures 0.5ma using a uCurrent Gold. That means the keep alive energy is 10 microWatts. Offhand, for the application we've been discussing on this thread, I suspect that number is too high to be practically useful, because at only 20mv input we'd be collecting far less than 0.5ma current from a tiny panel. At least now we know.
💬 Light and shock sensor | nRF52840 | MySensors
OpenHardware.io • light nrf52 nrf52840 nrf5 lux shock • 29 Nov 2019, 19:14 • openhardware.io 4 Dec 2019, 12:04

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Nice project manufacturers datasheets, RF appnotes etc all mention this, with results for different usecases (like gnd plane size etc). I mentioned it a few times on the forum: nothing under or near antenna (keep out zone) their matching circuit, and CE/FCC certif are based on their development boards+their antenna if external, often without enclosure. there are a very few pcb antennas which are resilient to untuning. ceramic or meandered pcb are usually more compact but less resilient (like when you approach your hand and device suddently has better or worst communication) once you change any of these parameters (board shape, gnd size, enclosure etc), it breaks FCC, and may need retuning, still you can get useable range. "ideally" tuning should be done once enclosed for example. manufacturers can't cover all cases. on my side, I try to follow these rules. and when interested in a design or a device, I check this. Mainly the routing+gnd, antenna choice, keepout zone, and orientation vs my usecase (long range needed or not for example)
💬 MySensors Linky
OpenHardware.io • mysensors arduino mysensor arduino pro mini linky edf enedis • 27 Nov 2019, 14:55 • openhardware.io 22 Dec 2019, 18:18

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22 Dec 2019, 18:18

thanks for you reply Fumée Bleue.
💬 "Drömsyn" Weather prediction lamp
OpenHardware.io • mysensors weather • 21 Nov 2019, 13:03 • openhardware.io 21 Nov 2019, 13:59

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21 Nov 2019, 13:59

@openhardware-io That looks great! - Perhaps they could make a version for the UK market called "regnsyn" ??? ;0
💬 rayBeacon: nRF52 on-the-go Development Kit
OpenHardware.io • nrf52 nrf52840 button nrf52833 raytrails cell • 20 Nov 2019, 13:43 • openhardware.io 4 Aug 2022, 17:28

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@Mishka Very nice work indeed. One question though: I don't see an antenna of any kind built into the PCB. Maybe I'm just not seeing it, or is there none? I do see a connection for an off-board near field antenna, but off-hand I don't see where the antenna is for 2.4Ghz RF. Oh, I see it now. You're using a chip antenna. Got it. Well, now that you've been using it for a while, how is the Raybeacon working out for you?
💬 BEEP base v3
OpenHardware.io • temperature iot lora beekeeping beep weight sound bee hive • 9 Nov 2019, 22:03 • openhardware.io 1 Apr 2021, 08:42

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Hey! This looks like a great project! I'm considering building one for my hives. I notice that the legs need to be welded. That will be a chore for people that want to make this build themselves. Is this version designed to be built by anyone? Did you consider using open source or standardized hardware? Think of 2020 alu profiles or something, to allow reasonable buildability for users other than beep-base-shop. Also let me know if I misjudged, and that all components could be simply bought online. Stay awesome! ~ Bart
💬 Arduino UNO NRF24L01+ Shield V1.3
OpenHardware.io • arduino nrf24l01 nrf24l01+ shield arduino uno • 5 Nov 2019, 07:08 • openhardware.io 5 Nov 2019, 07:08

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💬 HumTempNode
OpenHardware.io • 3 Nov 2019, 18:34 • openhardware.io 12 Nov 2019, 08:31

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It will depend on the interval but I'd also be interested in this.
💬 eGeoffrey
OpenHardware.io • 1 Nov 2019, 10:18 • openhardware.io 17 Jan 2021, 20:25

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17 Jan 2021, 20:25

Both links in the first post come back as 404-not found.
💬 Buck Energy Harvester
OpenHardware.io • ltc3388 • 23 Oct 2019, 03:27 • openhardware.io 5 Dec 2019, 19:29

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All done! It works. I made some corrections to the silk screen, so everything should now be in order.
💬 Extreme Energy Harvester
OpenHardware.io • ltc3108 • 20 Oct 2019, 18:50 • openhardware.io 4 Dec 2019, 16:41

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4 Dec 2019, 16:41

Perhaps answering my own question, I ordered one of these (it was $84, including delivery, during Black Friday) in order to properly characterize ultra low power energy harvesting circuits: https://www.aliexpress.com/item/33031557247.html?spm=a2g0o.cart.0.0.6f673c009dbs4n&mp=1 Ignoring its multimeter aspects, what remains is essentially a precision CV CC micropower supply intended for use as a calibrator. It has both microamp and microvolt output resolution, and the advertised accuracy (0.015% to 0.02%), if true, seems pretty good for the price. I should be able to calibrate a uCurrent Gold with it, for example. It may not arrive until much later in the month though. If anyone else wants to get one too, the normal price through this vendor is around $104, which to me still seems like a good price. I'm not sure why it's currently priced at $153, unless maybe it's in temporary short supply following the big Black Friday sale.
💬 MySensors Watermeter
OpenHardware.io • mysensors arduino mysensor water watermeter • 16 Oct 2019, 12:17 • openhardware.io 16 Oct 2019, 12:17

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💬 Arduino ARDHUB (MEGA/NANO)
OpenHardware.io • 10 Oct 2019, 20:26 • openhardware.io 10 Oct 2019, 20:26

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💬 NRF52 In Wall-Dimmer
OpenHardware.io • mysensors led dimmer fl5150 • 5 Oct 2019, 07:10 • openhardware.io 5 Oct 2019, 07:10

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💬 Laborem
OpenHardware.io • 17 Sept 2019, 19:08 • openhardware.io 17 Sept 2019, 19:08

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💬 USB RF Gateway
OpenHardware.io • gateway rfm69 nrf24 usb stm32 dfu usb device • 6 Sept 2019, 11:44 • openhardware.io 6 Feb 2020, 11:36

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6 Feb 2020, 11:36

@Tommas Hi, now I've posted a device for sale on Tindie, if it's still relevant for you https://www.tindie.com/products/avikmen/usb-rf-gateway-with-stm32-and-nrf24-in-case/
💬 Utilipi Mini
OpenHardware.io • mysensor nrf52832 utilipi industrial • 12 Aug 2019, 08:05 • openhardware.io 12 Aug 2019, 08:05

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💬 ZTX IP CONTROLLER
OpenHardware.io • iobroker orange pi zero ip controllers smart home smart home control • 2 Aug 2019, 08:38 • openhardware.io 15 Sept 2020, 21:50

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15 Sept 2020, 21:50

Sorry, one more mistake. On the board, the UART port connector rotates on 180 degrees. In this case, UART on the Orange PI Zero and UART on the board should be connected with wires.
💬 Usb serial Mysensors Gateway
OpenHardware.io • mysensors gateway mysensor passerelle de mysensors • 28 Jul 2019, 17:40 • openhardware.io 28 Jul 2019, 17:40

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💬 3G/GPRS/GPS SIM5320(E/A) Arduino Shield
OpenHardware.io • 28 Jul 2019, 09:11 • openhardware.io 28 Jul 2019, 17:58

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@shajek Drivers for MS are on the Internet. There is a project in which the author finalized the library and launched MQTT for sim5320. Here is the link: https://www.instructables.com/id/Remote-Control-and-Photo-Surveillance-Over-MQTT/ . Only there Arduino M0 is used (for convenience of working with several interfaces of UART). And it even transfers the image from the camera through MQTT and 3G channel.
💬 Wireless Module for Capacitive Soil Moisture Sensor v1.2
OpenHardware.io • nrf52832 soil moisture e73-2g4m04s capacitive soil moisture • 18 Jul 2019, 17:30 • openhardware.io 26 Oct 2019, 10:19

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26 Oct 2019, 10:19

Hello, Very interesting project ! When I try to put your gerber files in JLCPCB site, there is no view, and no dimensions ? Is it normal ? which dimensions is required ? Thanks
💬 Curtain driver
OpenHardware.io • esp8266 stepper motor curtain control • 10 Jul 2019, 19:35 • openhardware.io 10 Jul 2019, 19:35

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💬 Arduino Nano NRF24L01+ Shield
OpenHardware.io • nrf24l01+ arduino nano • 5 Jul 2019, 09:41 • openhardware.io 5 Nov 2019, 07:23

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5 Nov 2019, 07:23

I also have project for mini. The project have pads for battery, battery protection IC, LIPO charger USB for charging... battery voltage measurements.... But the project is not released yet, because high temperature during charging.
💬 PiHome Temperature Sensor
OpenHardware.io • ds18b20 temperature sensors pihome • 27 Jun 2019, 00:58 • openhardware.io 27 Jun 2019, 00:58

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💬 24V Relay drive board
OpenHardware.io • arduino relay output separated • 5 Jun 2019, 19:24 • openhardware.io 5 Jun 2019, 19:24

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💬 Arduino NANO & RFM69HCW
OpenHardware.io • rfm69 arduino nano • 3 Jun 2019, 08:50 • openhardware.io 4 Jun 2019, 06:29

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Everything is possible I just added CAD files. If anyone wants to change something.
💬 OpenTherm Adapter
OpenHardware.io • 30 May 2019, 17:19 • openhardware.io 9 Dec 2019, 12:22

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I am working on the analogous project. For several years I am using hw interface https://github.com/HynekBaran/OpenThermGWMini connecting the boiler and Arduino+NRF24L01 (which acts as a MySensors actuator). BUT: My boiler supports OpenTherm/Light (OT/-) protocol only. As far as I know, hw ("electric") specs of OT- are same as OT+ (2.0). So may be the simple OpenThermGWMini hw may be used, but there is missing MySensors sw part. See the original circuit diagram Maybe we may share?
💬 Radio Node
OpenHardware.io • mysensors nrf24l01+ battery atmega328p tp4056 lipo • 30 May 2019, 08:13 • openhardware.io 30 May 2019, 11:37

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30 May 2019, 11:37

Please add the documents required by the CERN license used.
💬 Mini touch sensor switch(nRF52832) 2 ch with glass panel
OpenHardware.io • nrf52832 touch sensor • 28 May 2019, 11:48 • openhardware.io 30 May 2019, 04:02

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30 May 2019, 04:02

Really nice, did you buy the glass plates from there ? https://www.aliexpress.com/item/2gang-golden-small-glass-switch-panel-match-with-Bingo-Elec-frame-glass-or-aluminum-and-2gang/32393507034.html If not, can you please tell where you get them from ? Thank you !
💬 MY-ESP32-GW
OpenHardware.io • esp32-gw with nrf24l01+pa • 21 May 2019, 18:46 • openhardware.io 3 Jul 2019, 18:22

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3 Jul 2019, 18:22

could you share a circuit diagram? thanks
💬 LoRa ESP32 Low Power Lerning Board
OpenHardware.io • temperature humidity esp32 low power lora gps e-ink display buzzer atmospheric pressure gyro lorawan fuel gauge • 8 May 2019, 08:49 • openhardware.io 8 May 2019, 08:49

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💬 Simple compact RS485 node (ATmega328 + MAX485)
OpenHardware.io • 7 May 2019, 15:34 • openhardware.io 25 Jun 2020, 08:55

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25 Jun 2020, 08:55

@dzjr Congrats! My works on hobby is not hard because of we have nice weather too
💬 MySensors Nrf24/RFM Serial/Ethernet GW Shield (for Uno)
OpenHardware.io • mysensors rfm69 nrf24l01+ • 6 May 2019, 12:53 • openhardware.io 14 Jan 2021, 22:54

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Hello, i'm making some progress; received the components this week. Unfortunately it doesn't work... yet For now i have SanityCheck failure in to logs. I'm afraid my soldering of all these little components is not good. I tested with a multimeter the 4 pins and i have continuity on one of them but maybe not the others so i guess i will have to try remelting all these small regulators ???
💬 Arduino UNO NRF24L01+ Shield
OpenHardware.io • arduino nrf24l01 nrf24l01+ mysensor shield • 6 May 2019, 04:58 • openhardware.io 9 May 2019, 09:14

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@tiana I have not used it, but it is possible to create different revisions. See https://www.openhardware.io/view/4/EasyNewbie-PCB-for-MySensors#tabs-revisions as an example.
💬 MySensored Wall Switch Replacement
OpenHardware.io • mysensors switch wall light • 3 May 2019, 20:08 • openhardware.io 3 May 2019, 20:08

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💬 nrf52832 PIR
OpenHardware.io • 18 Apr 2019, 16:01 • openhardware.io 30 Aug 2019, 11:20

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30 Aug 2019, 11:20

5 months and voltage still holding decently high /77/28/1/0/38 2.964
💬 MySensors Low-power Multi-function node on CR2032
OpenHardware.io • mysensors nrf24l01+ atsha204a si7021 node at25df512c • 25 Mar 2019, 18:39 • openhardware.io 2 Jan 2020, 18:39

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@rvendrame sorry, I did not see your comment. Yes, it is VERY valuable. Thanks a lot
💬 MyThermostat
OpenHardware.io • mysensors arduino rfm69 thermostat pid heater • 18 Mar 2019, 12:49 • openhardware.io 22 Mar 2019, 21:17

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@kimot I am not handling that situation. I'm taking for granted ssr will do his job. Maybe there's some ssr safety topic I'm unaware? Suggestions for a v3.0 are welcome. About the temperature measuring... I use two sensors. The one in the board protects electronics from temperatures beyond design (60°C). It's near the ssr because the ssr's derating curve is the most limiting condition. The control sensor is placed in the bottom of the heater. It connects to the board through a 3 pin header connector.
💬 learning cube for arduino
OpenHardware.io • arduino pcb microcontroller electronics learning teaching education • 16 Mar 2019, 12:41 • openhardware.io 16 Mar 2019, 14:32

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But it's not a cube!
💬 Hmi4DinBox
OpenHardware.io • arduino raspberry pi i2c hmi din enclosure nano pi • 10 Mar 2019, 15:16 • openhardware.io 10 Mar 2019, 15:16

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💬 MDMSNode "xRoom"
OpenHardware.io • ethernet usb i2c stm32 spi uart st485 dio • 1 Mar 2019, 13:38 • openhardware.io 1 Mar 2019, 13:38

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💬 MDMSPanel "Nextion"
OpenHardware.io • arduino rtc atmega modbus display nextion st485 jtag megacore • 23 Feb 2019, 12:10 • openhardware.io 27 Feb 2019, 11:52

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@sebdetours said in MDMSPanel "Nextion": Did you take a standart case that you cut out? Hi @sebdetours, yes. This is G1910 (Gainta) box. See drawing attached to projet files.
💬 MDMSMotion
OpenHardware.io • mysensors sensor motion majordomo • 21 Feb 2019, 16:35 • openhardware.io 21 Feb 2019, 16:35

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💬 Usb Key Gateway
OpenHardware.io • 18 Feb 2019, 22:46 • openhardware.io 1 Aug 2019, 07:11

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By the way, I'm currently using the RF Nano as a 'usb key gateway', or sorts. With the WebThings Gateway, a user just has to install the Candle manager add-on. Then they plug in the RF Nano and select that they want to upload gateway code from a menu. That's all they have to do.
💬 Soil-moisture-meter
OpenHardware.io • sensor moisture soil meter • 15 Feb 2019, 11:07 • openhardware.io 2 Mar 2019, 14:48

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@Serg2055 as the name says, openhardware.io is for open hardware. You are allowed to sell PCB units, partially or fully soldered boards, but selling source is not an acceptable option. Please include readable schematic and source of your boards or at least gerbers or bom. For all your boards posted on openhardware.io. Thank you !
💬 NRF24L01 shield for Arduino Uno (for MySensors gateway)
OpenHardware.io • mysensors arduino gateway nrf24l01 shield • 13 Feb 2019, 21:39 • openhardware.io 13 Feb 2019, 21:39

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💬 MySensors InCan double light switch
OpenHardware.io • mysensors nrf24l01 relay switch light hlk-pm01 acdc in-wall • 13 Feb 2019, 12:50 • openhardware.io a day ago

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The author has done some good work ensuring good design practices; trace separation, fuses, etc. but I don't see any extra I/O brought out on this particularl switch. You would have to carefully solder to the chip itself, and modify the code a bit. You could use magnetic switches. Put a magnet on the blinds and the switch in window sill. The author notes that this is not an Arduino, but uses the same chip that the Arduino uses. The author doesn't explain how the chip is programmed. This method could have been used. It may be just as easy to use an RF Nano with a little power supply. This suggestion is not nearly as robust as the author's. For example, these power supplies have gotten bad reviews mainly because the mains power traces are too close together. I justify using them because in all likelihood a failure will pop the power supply and probably the Nano, too, noting that these are cheaper than the fuses you would put in to protect them. I am fully aware of the risks involved in doing this, and you should be, too (eg. burning down your house). -OSD
💬 MSMDSmokeWithMotion
OpenHardware.io • motion smoke msmdsmokewithmotion • 7 Feb 2019, 06:10 • openhardware.io 7 Feb 2019, 15:40

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Hello. I use an optical pair, all the processing is done by the processor.
💬 Phils-Li-Ion-Battery-Board
OpenHardware.io • 4 Feb 2019, 17:18 • openhardware.io 4 Feb 2019, 17:18

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💬 Schmitt trigger
OpenHardware.io • 3 Feb 2019, 14:27 • openhardware.io 23 Oct 2019, 10:38

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You might also be interested in the MIC2779 hysteresis chip: http://ww1.microchip.com/downloads/en/DeviceDoc/MIC2779-Voltage-Monitor-with-Adjustable-Hysteresis-DS20006116A.pdf which seems to do what you want, but all in a single chip.
💬 APRS GPS Tracker
OpenHardware.io • battery bluetooth gps search and resque ham radio aprs • 23 Jan 2019, 09:16 • openhardware.io 23 Jan 2019, 14:25

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Interesting, please note that you need to be a licensed ham radio operator, in order to use the APRS network.
💬 Raspberry Pi Power Supply Board
OpenHardware.io • psu rpi hat • 19 Jan 2019, 23:17 • openhardware.io 20 Jan 2019, 02:44

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FYI, just tossed out a Rev 2 because I'd left out the mounting hole clearances for the plane and resist.
💬 Temperature-Humidity-Pressure Sensor
OpenHardware.io • arduino temperature esp8266 sensor humidity raspberry pi esp32 pressure • 11 Jan 2019, 07:19 • openhardware.io 14 Jan 2019, 13:25

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Advantage of this sensor is fast and easy installing by the non qualified personal. The sensor is designed for large agriculture facility with many greenhouses where is needed to be controlled temperature and humidity, the atmospheric pressure is for control the motor of air inlet and outlet. With help of the sensor installed outside the greenhouse provide information about positive/negative pressure inside the greenhouse. Finlay the software read accurate temp/humid value of the Si7021, and only atmospheric pressure of BMP180, the temperature sensor inside the BMP180 is used only by the sensor itself to provide accurate atmospheric pressure measurements. The sensor can be used also for home automation, and drone applications where is needed correction of the UAV barometric sensor compared to the ground barometric sensor, also humidity measurement can help the pilot to calculate more accurate flying time.
💬 Instrumentation Amplifier
OpenHardware.io • 9 Jan 2019, 09:32 • openhardware.io 12 Jan 2019, 21:54

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Hello everyone, Had a moment to put in a post, to let you know I could answer questions. I'll probably put a few more designs up here if I get any interest. The Github for the design will always be the most recent, but I will release revisions here if/when they need to happen. This board came about because I had need of a fast sampling strain gauge load cell circuit for a project. I designed this to be a prototype board to work between different MCU boards and with varying load cells. This circuit has been tested using 3 different Arduino form factor boards, the Uno, the Sparkfun ATSAMD21G breakout, and the Adafruit Metro M4 Express. I don't have the regulator populated in the image, I was using a wire jumper until deciding on which board this particular one would permanently reside, the Sparkfun board, for example, require a 5V v-in, whereas the Adafruit and Arduino can handle 12V. The 2.54mm pitch terminal blocks are spaced back from the edge of the board in case a smaller board is desired (to match the Sparkfun or Coridium board profiles), and to allow the use of a 90 degree pin header instead of the screw terminals without going off the end of the board.
💬 Solderdoodle Plus | Cordless USB Rechargeable Hot Multi Tool
OpenHardware.io • 7 Jan 2019, 21:33 • openhardware.io 7 Jan 2019, 21:33

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💬 EFEKTA Two channel Pulse Counter | nRF52
OpenHardware.io • 7 Jan 2019, 01:17 • openhardware.io 2 Mar 2019, 23:39

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@berkseo I'm trying to reverse engineer the BOM of this board, but I am quite unsuccessful. Could you please upload a BOM with (R1 = xxx k) or something similar, or Upload high-res closeups of the board so one can read the resistor values? Capacitors are a little harder, maybe you could share those values? I have started on a BOM list, if you could help me fill it out, that would be much appreciated. I want to start soldering!! Front YJ-16048 ----------- NRF52 RGB LED ------------ RGB led with common cathod R11 ------------------------------------------------------------------- ??? R12 ------------------------------------------------------------------- ??? L1 --------- 4.7uH inductor C1 -------------------------------------------------------------------- ??? TPS62XX ----------- TPS62745 C3 -------10uF 25V 1206 POWER ----- Vertical 7-pin switch U1, U3 ------- Battery holder 1/2 AA U5, U7 ------ 2 pin Screw connector Unmarked ------ Trimmer resistor 10K MODE, RESET --------- push button 3-pin vertical SWD -------- 6-pin female header 1.27 mm Back R15 --------------------------------------------------------- ??? R14 --------------------------------------------------------- ??? R13 --------------------------------------------------------- ??? R17 --------------------------------------------------------- ??? R16 --------------------------------------------------------- ??? R18 --------------------------------------------------------- ??? R19 --------------------------------------------------------- ??? C13 ----- 100uF 6v/10V C14 -------------------------------------------------------- ??? R1 ---------------------------------------------------------- ??? R2 ---------------------------------------------------------- ??? U6, U8 ----- tlv3691 R7, R10 -------------------------------------------------- ??? R9 ---------------------------------------------------------- ??? R8 ---------------------------------------------------------- ??? R6 ---------------------------------------------------------- ??? R4 ---------------------------------------------------------- ??? R3 ---------------------------------------------------------- ??? R5 ---------------------------------------------------------- ??? R1 ---------------------------------------------------------- ??? R2 ---------------------------------------------------------- ???
💬 Temp_Hum sensors
OpenHardware.io • temperature humidity sensors temp hum • 2 Jan 2019, 08:41 • openhardware.io 2 Jan 2019, 08:41

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💬 MSMDLed
OpenHardware.io • mysensors controller led • 27 Dec 2018, 11:02 • openhardware.io 27 Dec 2018, 11:02

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💬 NRF52 Temp hum
OpenHardware.io • 23 Dec 2018, 18:53 • openhardware.io 23 Dec 2018, 18:53

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💬 E73-2G4M04S BREADBOARD
OpenHardware.io • nrf52832 nrf52 nrf5 breadboard • 22 Dec 2018, 22:06 • openhardware.io 22 Dec 2018, 22:06

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💬 RS485 Ethernet Gateway
OpenHardware.io • gateway ethernet rs485 mysensors gateway sensor network • 20 Dec 2018, 14:55 • openhardware.io 9 Oct 2019, 12:05

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@kimot No, it is an obvious mistake, I am very sorry. Maybe it is becouse the code in master branch is very old, the newest is not yet on github, but the developement branch is quite new. I am going to fix this soon.
💬 MGTech MySersors iOT-Node - Battery powered + AC Mains
OpenHardware.io • 30 Nov 2018, 10:10 • openhardware.io 30 Nov 2018, 10:10

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💬 RS485 4RelayDin Shield
OpenHardware.io • mysensors relay rs485 sensor network current sensor acs712 • 28 Nov 2018, 12:38 • openhardware.io 5 Mar 2022, 07:04

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@openhardware-io Hi: (Please direct to Feanor-Anglin if possible) I previously ordered some 4RelayDIN PCBs off openhardware.io and got v1.6 PCBs but the info on the site I found is only for an earlier version of the PCB board. I am trying to build some of the boards but there are additional compomemts on the newer PCB board. The main one which looks to be a driver IC. Would you please share the updated information with me or perhaps update the openhardware.io site. Many thanks, Rod
💬 EFEKTA nRF5 Temperature & Humidity mini sensor
OpenHardware.io • nrf52832 nrf52 temperature & humidity sensor nrf5 sht20 • 26 Nov 2018, 12:36 • openhardware.io 25 Dec 2019, 10:52

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Please Is it possible to buy only PCB? Do you plan also to release your sketch?
💬 EFEKTA nRF5-C Motion sensor
OpenHardware.io • nrf52832 motion nrf52 nrf5 bh1750 lux s16-l201d • 25 Nov 2018, 22:55 • openhardware.io 4 Sept 2019, 12:54

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hello @berkseo can you share sketch for this sensor ? i am very intrested about this thank you PS: great job !
💬 EFEKTA nRF5 Motion sensor
OpenHardware.io • nrf52832 motion nrf52 nrf5 lux • 25 Nov 2018, 20:17 • openhardware.io 28 Dec 2018, 20:23

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Can you tell something about the range of this node? And do you see a chance to post the schematic?
💬 RS485 2SSR Shield
OpenHardware.io • rs485 sensor network current sensor acs712 ssr • 20 Nov 2018, 13:53 • openhardware.io 20 Nov 2018, 13:53

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💬 RS485 MCU Module
OpenHardware.io • mysensor rs485 i2c fota sensor network • 19 Nov 2018, 14:26 • openhardware.io 5 Mar 2019, 21:38

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@kimot in theory you might be right, but in practice... it just works. The propability of collisions is extremely low and this is, as far as I know, the only problem you can worry about. After all, it was not my idea to use MySensors with RS485: https://www.mysensors.org/build/rs485
💬 EFEKTA BME280 Sensor
OpenHardware.io • nrf52832 nrf52 bme280 cr2450 cr2477 • 15 Nov 2018, 10:16 • openhardware.io 11 Jul 2019, 22:26

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Could you please update the description with what component goes where on the pcb?
💬 Raspberry PI Hat
OpenHardware.io • raspberry pi 3 wdt nrf24l01 gateway hardware watch dog timer • 2 Nov 2018, 22:12 • openhardware.io 8 Nov 2018, 19:43

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I am not familiar with this board. look good. But mine design have few leverages: You can stack another shield on top. Have hardware Watch Dog Timer in case of your R-PI freeze.
💬 TE and LE mysensors dimmer
OpenHardware.io • 21 Oct 2018, 19:11 • openhardware.io 1 Mar 2019, 15:14

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Interesting Project, is there some more documentation available especially in regards to the wattage of the resistors R14-R17 and why no SMD ones are used here rather than those beefy ones which look like 1/2W or more?
💬 YJ-16048 nRF52832 Breakout Board
OpenHardware.io • 21 Oct 2018, 18:21 • openhardware.io 21 Oct 2018, 18:21

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💬 PogoPins
OpenHardware.io • pogopins uploading • 14 Oct 2018, 16:42 • openhardware.io 15 Oct 2018, 12:24

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I made a simple adapter for Pro Minis, Used on it own for new boards with connection holes If you slide on some dupont cable covers as a guide it makes it easy to program a soldered board
💬 Venta Connected (WiFi control for Venta LW45 humidifier)
OpenHardware.io • wifi smarthome • 14 Oct 2018, 16:07 • openhardware.io 14 Oct 2018, 16:07

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💬 RASLE (Rpi Arcade Sound & Light Extension)
OpenHardware.io • 4 Oct 2018, 20:02 • openhardware.io 4 Oct 2018, 20:02

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💬 Bed occupancy detector
OpenHardware.io • mqtt esp8266 bed • 4 Oct 2018, 19:18 • openhardware.io 4 Oct 2018, 19:18

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💬 VUSBTiny
OpenHardware.io • 24 Sept 2018, 04:50 • openhardware.io 5 Oct 2018, 10:37

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@neverdie I guess it might be not to program but to talk to something with SPI from a PC via USB.
💬 BEEP base v2
OpenHardware.io • temperature sensor humidity measurement audio beekeeping weight beep bee app hive monitor • 18 Sept 2018, 07:39 • openhardware.io 10 Dec 2018, 22:53

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Sorry, 1 more question. At what timeframe do you expect diy packages to be for sale? I have checked with steel manufactures before for other projects, but having a small batch of steel tubes means that they will be enormously expensive and the same goes for the PCB's. The milling I can do easily at a maker space (fablab013). I am planning on a rather long, 1 storey hive, so I plan to cut the metal tubes in half and mount an extension in between.
💬 EFEKTA Temp&Hum sensor(ver. nRF52 )+E-Ink display
OpenHardware.io • nrf52832 nrf52 temperature & humidity sensor nrf52840 nrf52811 e-ink display nrf52810 e-paper • 17 Sept 2018, 09:09 • openhardware.io 25 Sept 2020, 23:02

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Update on the project. New version added to openhardware.io
💬 Super Efficient Boost Converter
OpenHardware.io • 15 Sept 2018, 21:23 • openhardware.io 17 Sept 2018, 11:48

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@berkseo I presume so, but so far I've only confirmed that it works. If running a wireless device, then to be ultra conservative, one would want to have it charge a capacitor, then turn it off before an rx or tx, and then turn it on again. That would be true for any boost converter. Unfortunately, this one doesn't have an enable pin, so you'd have to make your own switch for it in that case. I don't know that it would be needed, but that would be the abundance of caution approach. Either that or make a low pass filter for it if it has any remaining voltage ripple. I haven't measured for that, so I can't say. It may or may not be an issue. Without doing measurements, I couldn't say. Again, that would be true for any boost converter.
💬 MYSX Epaper Extension
OpenHardware.io • 14 Sept 2018, 10:34 • openhardware.io 14 Sept 2018, 10:34

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💬 ESP32 MYSX Baord
OpenHardware.io • 14 Sept 2018, 10:28 • openhardware.io 22 Sept 2018, 19:11

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This board supports 3 different radios (beside the onboard WiFi, ESPnow of the ESP32): RFM69, RFM95, CC1101, so it can be used as mySensors gateway, mysensors node, Homematic etc. and it has a mySX connector.
💬 Supercap solar charger
OpenHardware.io • charger solar supercap harvesting harveter harvest charge super capacitor ideal diode • 5 Sept 2018, 16:20 • openhardware.io 6 Feb 2020, 01:22

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@Mishka Ah yes, that is true. In this case though I went out of my way to keep the PCB dimensions as small as possible so that someone could have it made at OSH-PARK for super cheap--just $0.30 per board. If I ever figure out how to post a complete set of KiCAD files, then I guess maybe then everyone can modify it to suit their circumstances. Until then, it will be hard to have one's cake and eat it too.
💬 UtiliPi
OpenHardware.io • raspberry pi i2c gpio adc spi • 27 Aug 2018, 08:27 • openhardware.io 27 Aug 2018, 08:27

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💬 NRF52 Wall-Node (3 AAA)
OpenHardware.io • nrf52832 nrf52 pir si7021 temperature & humidity sensor • 21 Aug 2018, 17:38 • openhardware.io 18 Mar 2019, 18:33

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@nca78 I don't use ATAES132A. I put it in just in case I wanted to invest some more time using it. I now just use SimpleEncryption, it's secure enough for my purpose atm. (since the area I live in uses KAKU a lot, an insecure 433MHz lightswitch, I don't think anyone would be bothered to hack my temperature sensors. I found 163 433Mhz devices when I left domoticz logging for a couple of days.)
💬 RFM69(H)W Arduino Mini Pro Shield v2
OpenHardware.io • rfm69 arduino pro mini rfm69hw shield • 13 Aug 2018, 17:02 • openhardware.io 12 Jul 2022, 13:49

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Does anybody have a link to a fixed version of this board? It's exactly what I am looking for form-wise, but I'd be nice if VCC was wired to 3.3v out of the box. Thanks!!
💬 NRF52 Wall-Node (AC/DC)
OpenHardware.io • nrf52832 nrf52 • 6 Aug 2018, 13:49 • openhardware.io 6 Aug 2018, 13:49

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💬 Small RFM Gateway for LoRa or RFM69
OpenHardware.io • 5 Aug 2018, 15:45 • openhardware.io 5 Aug 2018, 15:45

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💬 MySXMotion
OpenHardware.io • motion mysx • 24 Jul 2018, 19:51 • openhardware.io 24 Jul 2018, 19:51

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💬 Temperature and humidity sensor(ver.ATmega328)+E-Ink display
OpenHardware.io • 23 Jul 2018, 10:53 • openhardware.io 3 Nov 2018, 18:23

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The project is closed. See the continuation of this development in the new project - https://www.openhardware.io/view/629/EFEKTA-TempandHum-sensorver-nRF52832-E-Ink-display
💬 EFEKTA Motion sensor
OpenHardware.io • 23 Jul 2018, 10:42 • openhardware.io 25 Sept 2018, 17:16

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@rchamp I hope that very soon my SolidWorks will present very interesting enclosures for my devices :). Now this is the number one task. In fact, I stopped developing new PCBs. Now I spend all my free time developing enclosures for finished devices.
💬 Touch switch with glass panel (two channels, battery)
OpenHardware.io • 23 Jul 2018, 10:34 • openhardware.io 6 Sept 2018, 13:49

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@berkseo said in Touch switch with glass panel (two channels, battery): @neverdie said in Touch switch with glass panel (two channels, battery): you can add it externally after the fact ... It's not entirely clear, is it adding something to the circuit diagram (hardware)? Or is it a software solution, such as writing a value to a register? Well, it's been a while, so I' going from memory. There's definitely a hardware component for DC-DC that you can see in the datasheet. IIRC, there's also a software enable as well. Really, though, with these chips, the datasheet is your friend for answering most quesitons. There just isn't much other documentation to go by, aside from thread "nrf52 action!",
💬 MySMotherboard
OpenHardware.io • rfm69 nrf24 mysx • 22 Jul 2018, 16:19 • openhardware.io 23 Jul 2018, 22:11

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23 Jul 2018, 22:11

ok, thanks for reminder.
💬 Arduino Pro Mini Shield for RFM69
OpenHardware.io • rfm69 pro mini • 21 Jul 2018, 16:13 • openhardware.io 21 Jul 2018, 16:13

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💬 LoRa32 Node
OpenHardware.io • 19 Jul 2018, 16:57 • openhardware.io 19 Jul 2018, 16:57

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💬 NRF24 to RFM69 adapter
OpenHardware.io • mysensors nrf24l01 rfm69 nrf24 radio • 15 Jul 2018, 13:18 • openhardware.io 17 Jul 2018, 05:51

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@alowhum thank you
💬 ESP32 MySensors Gateway V4.4
OpenHardware.io • esp32 esp-wroom-32 mysensors g • 7 Jul 2018, 20:06 • openhardware.io 16 Sept 2018, 13:57

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Version 4.2 was just published. The board now also contains breakout headers for I2C devices (temperature sensors such as Si7021, HTU21D, SHTT71 and BME280) and a headers for a RXB6 RF 433Mhz receiver. Not tested yet.

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💬 Pinect Hand-Free Game Console OpenHardware.io • arduino pcb motion sensor console game android scheme camera • 26 Jan 2023, 17:52 • openhardware.io 26 Jan 2023, 17:52

💬 Easy Switch Box OpenHardware.io • mysensors arduino switch atmega328 lora low power • 14 Dec 2022, 20:57 • openhardware.io 14 Dec 2022, 20:57

💬 VikingCube-WT OpenHardware.io • modularsynth oscillator adsr vca • 2 Dec 2022, 06:57 • openhardware.io 2 Dec 2022, 06:57

💬 VikingCube-Midi OpenHardware.io • modularsynth usb-midi • 2 Dec 2022, 06:57 • openhardware.io 2 Dec 2022, 06:57

💬 6Gang30AmpsLatchRelayEspHomeReady OpenHardware.io • power esp32 mains voltage esphome matter latching relay • 29 Nov 2022, 19:11 • openhardware.io 1 Dec 2022, 06:49

💬 VikingCube-MUL OpenHardware.io • modularsynth passivemul • 26 Nov 2022, 13:41 • openhardware.io 26 Nov 2022, 13:41

💬 Anna2040 RP2040 Uno-shaped board OpenHardware.io • arduino uno arduino uno pico • 25 Nov 2022, 18:24 • openhardware.io 25 Nov 2022, 18:24

💬 Hammar 32 bit 3D printer controller OpenHardware.io • esp32 3d print reprap 3d printer cnc marlin wroom-32 • 25 Nov 2022, 15:53 • openhardware.io 25 Nov 2022, 15:53

💬 TinyReflow solder plate OpenHardware.io • arduino smd soldering solder reflow • 8 Nov 2022, 19:43 • openhardware.io 14 Nov 2022, 12:07

💬 Epi, tiny ATMega32U4 Arduino-compatible OpenHardware.io • arduino micro keyboard • 8 Nov 2022, 19:08 • openhardware.io 8 Nov 2022, 19:08

💬 Hematuria Meter OpenHardware.io • arduino spectrophotometer weight sensor 3d printed • 31 Oct 2022, 06:41 • openhardware.io 31 Oct 2022, 06:41

💬 Home Energy Sensor OpenHardware.io • energy monitor home automation esphome • 21 Sept 2022, 05:45 • openhardware.io 21 Sept 2022, 05:45

💬 Rosmo:Bot OpenHardware.io • 21 Sept 2022, 05:45 • openhardware.io 21 Sept 2022, 05:45

💬 backup power auto-switch circuit OpenHardware.io • power module • 4 Aug 2022, 14:52 • openhardware.io 12 Sept 2022, 14:09

💬 Small arduino pro mini rfm69 shield OpenHardware.io • mysensors rfm69 arduino pro mini • 2 Aug 2022, 15:03 • openhardware.io 3 Aug 2022, 00:26

💬 BC805M (nRF52805) development board integrated with nRF52-DK OpenHardware.io • 5 Jul 2022, 21:14 • openhardware.io 11 Jul 2022, 22:37

💬 nRF52-DK external programming shield OpenHardware.io • 5 Jul 2022, 17:33 • openhardware.io 5 Jul 2022, 17:33

💬 XL Proto-Breadboard OpenHardware.io • 29 Jun 2022, 19:02 • openhardware.io 29 Jun 2022, 19:02

💬 Fork of BigClive AA Battery Trickle Charger OpenHardware.io • 26 Jun 2022, 23:45 • openhardware.io 21 Jan 2023, 17:58

💬 nRF24L01 Adapter Board (AH) OpenHardware.io • mysensors • 22 Jun 2022, 05:35 • openhardware.io 22 Jun 2022, 05:35

💬 Ra-01 400Mhz LoRa AI-Thinker adapter board OpenHardware.io • 6 Jun 2022, 15:24 • openhardware.io 6 Jun 2022, 15:24

💬 RFM69 900Mhz Adapter Board OpenHardware.io • 6 Jun 2022, 15:22 • openhardware.io 6 Jun 2022, 15:22

💬 nRF24L01 adapter board OpenHardware.io • 6 Jun 2022, 15:19 • openhardware.io 6 Jun 2022, 15:19

💬 Ra-01SH 900MHz AI-Thinker LoRa adapter board OpenHardware.io • 6 Jun 2022, 15:17 • openhardware.io 6 Jun 2022, 15:17

💬 DRF1262T/G 900Mhz LoRa adapter board OpenHardware.io • 6 Jun 2022, 15:16 • openhardware.io 6 Jun 2022, 15:16

💬 E28-2G4M27S adapter for v2.0 atmega328p test platform OpenHardware.io • 30 May 2022, 04:08 • openhardware.io 30 May 2022, 04:08

💬 Version 3.0 atmega328p test platform OpenHardware.io • 30 May 2022, 04:03 • openhardware.io 16 Jul 2022, 01:07

💬 MySensors TouchScreen Thermostat on Arduino Mega PRO OpenHardware.io • 22 May 2022, 14:42 • openhardware.io 22 May 2022, 14:42

💬 EBYTE E28-2G4M27S (SX-1280 chip) 2.4GHz LoRa Breakout Board OpenHardware.io • 1 Apr 2022, 07:36 • openhardware.io 1 Apr 2022, 07:36

💬 Yet Another WLED Controller OpenHardware.io • wled • 20 Feb 2022, 21:43 • openhardware.io 20 Feb 2022, 21:43

💬 Reperter/Gateway USB Mysensors OpenHardware.io • gateway mysensor seeduino xiao repeter fumeebeleue • 5 Feb 2022, 17:10 • openhardware.io 5 Feb 2022, 17:10

💬 ESP fil pilote SMD version OpenHardware.io • heater command esp8266 • 25 Nov 2021, 14:09 • openhardware.io 25 Nov 2021, 14:09

💬 mySensor 3*Relay Din Format OpenHardware.io • mysensor nrf52832 din • 27 Oct 2021, 17:03 • openhardware.io 27 Oct 2021, 17:03

💬 Valden: Heat Pump Controller OpenHardware.io • arduino power diy thermostat heating gerber refrigerant refrigeration compressor rs-485 green-energy heat-pump eev txv cappilary heat-exchange • 4 Sept 2021, 06:43 • openhardware.io 4 Sept 2021, 06:43

💬 ADP5054 Quad Buck Regulator For FPGA And Processor OpenHardware.io • pcbdesign circuitdesign powercircuit analogdevices • 29 Aug 2021, 17:57 • openhardware.io 29 Aug 2021, 17:57

💬 0V85-30A Buck Converter for FPGA using TPS549D22 OpenHardware.io • pcbdesign circuitdesign powercicuit • 28 Aug 2021, 06:34 • openhardware.io 28 Aug 2021, 06:34

💬 Arduino Based Serial Controller For Welding Machine OpenHardware.io • arduino controller adc dac • 27 Aug 2021, 07:05 • openhardware.io 27 Aug 2021, 07:05

💬 A Step-Down Switching Regulator Using MP1584 OpenHardware.io • powermodule step-down switching regulator • 26 Aug 2021, 14:07 • openhardware.io 26 Aug 2021, 14:07

💬 Tactile and Pushbutton Switches Module OpenHardware.io • switch board tactile switch pushbutton switch • 25 Aug 2021, 15:33 • openhardware.io 25 Aug 2021, 15:33

💬 Detecting Mains Voltage Module OpenHardware.io • sensor mains voltage ac sensor ac detection • 25 Aug 2021, 08:35 • openhardware.io 25 Aug 2021, 08:35

💬 miBlackHomeSVR OpenHardware.io • raspberry rs485 iot lora home automation • 20 Aug 2021, 05:36 • openhardware.io 20 Aug 2021, 05:36

💬 7-Segment LEDs Module Using Shift Register CD74HC595 OpenHardware.io • 7-segment led 74hc595 shift register • 15 Aug 2021, 06:54 • openhardware.io 15 Aug 2021, 06:54

💬 Raspberry Pi Fan Breakout OpenHardware.io • raspberry pi raspberry gpio breakout board raspberry pi 3 fan breakout • 20 Jul 2021, 13:31 • openhardware.io 20 Jul 2021, 13:31

💬 HVAC Recuperator control OpenHardware.io • mysensors hvac recuperator • 18 Jul 2021, 17:33 • openhardware.io 18 Jul 2021, 17:33

💬 Air quality and weather forecast sensor OpenHardware.io • nrf52840 bme280 air quality weather forecast nrf52833 sgp40 max44009 • 25 May 2021, 09:25 • openhardware.io 8 Jul 2021, 11:33

💬 Fairy light led string controller OpenHardware.io • fairylight • 23 May 2021, 14:17 • openhardware.io 23 May 2021, 14:17

💬 Uno Gateway shield NRF24L01+ version OpenHardware.io • gateway arduino uno nrf24l01+ • 23 May 2021, 12:13 • openhardware.io 23 May 2021, 12:26

💬 RFM Linky OpenHardware.io • arduino arduino pro mini energy monitor energy meter edf enedis linky • 3 Apr 2021, 17:05 • openhardware.io 3 Apr 2021, 17:05

💬 MqGateway OpenHardware.io • gateway mqtt wired • 16 Mar 2021, 20:15 • openhardware.io 31 Aug 2022, 20:18

💬 Capacitive Soil Moisture Sensor OpenHardware.io • mysensors nrf24l01+ atmega328p soil moisture capacitive soil moisture • 14 Mar 2021, 23:14 • openhardware.io 14 Jan 2022, 15:42

💬 Universal Inputs Modbus Module OpenHardware.io • relay modbus analog digital input universal inputs • 23 Feb 2021, 00:30 • openhardware.io 23 Feb 2021, 13:51

💬 LCDUINO OpenHardware.io • serial arduino nano lcd uart • 23 Feb 2021, 00:29 • openhardware.io 3 May 2021, 08:35

💬 Arduino NANO sensor board OpenHardware.io • arduino nano sensor board • 19 Feb 2021, 16:11 • openhardware.io 19 Feb 2021, 16:11

💬 MySX Power Board 18650 OpenHardware.io • battery power power supply mysx 18650 • 23 Jan 2021, 11:33 • openhardware.io 23 Jan 2021, 11:33

💬 EFEKTA V4 Temp&Hum&Press sensor with E-Ink 1.54 OpenHardware.io • nrf52832 nrf52 si7021 nrf52840 bme280 htu21d sht21 e-ink display nrf52833 • 29 Dec 2020, 18:48 • openhardware.io 29 Dec 2020, 18:48

💬 Leaky - water detector OpenHardware.io • mqtt esp8266 home assistant water leak • 12 Dec 2020, 08:10 • openhardware.io 21 Dec 2020, 09:53

💬 MySX Prototype board OpenHardware.io • mysx prototype • 2 Dec 2020, 13:30 • openhardware.io 2 Dec 2020, 13:30

💬 InlineCleaner OpenHardware.io • super8 film cleaner film cleaner super 8 • 23 Nov 2020, 12:36 • openhardware.io 24 Nov 2020, 06:32

💬 Mini weather station with e-ink 2.9 Inch OpenHardware.io • mysensor nrf52 bme280 weather forecast • 30 Oct 2020, 15:26 • openhardware.io 8 Jul 2021, 11:36

💬 CMSIS-DAP OpenHardware.io • stm32 debugger • 3 Oct 2020, 18:04 • openhardware.io 3 Oct 2020, 18:04

💬 Simple compact RS485 node v2 (ATmega328 + MAX3485 + W25X40) OpenHardware.io • 22 Sept 2020, 17:04 • openhardware.io 14 Oct 2020, 14:56

💬 Mini temperature and humidity sensor with e-ink 1.02 Inch OpenHardware.io • nrf52832 si7021 htu21d nrf52811 sht21 nrf52810 sht20 e-paper e-ink • 11 Sept 2020, 15:55 • openhardware.io 14 Mar 2021, 13:25

💬 MyGateway OpenHardware.io • mysensors gateway rfm69 ethernet poe • 18 Aug 2020, 03:59 • openhardware.io 6 days ago

💬 PulseTAC OpenHardware.io • 12 Aug 2020, 20:10 • openhardware.io 13 Aug 2020, 12:59

💬 IRShine OpenHardware.io • 12 Aug 2020, 20:09 • openhardware.io 12 Aug 2020, 20:09

💬 Capacitive touch switch module with LED illumination OpenHardware.io • 31 Jul 2020, 15:21 • openhardware.io 31 Jul 2020, 15:21

💬 MICRO MULTI SENSOR OpenHardware.io • nrf52832 si7021 bme280 cr2032 htu21d nrf52811 sht20 nrf52810 tmp117 lmt01 lis2dw12 lis2dh12 • 22 Jul 2020, 19:25 • openhardware.io 23 Jul 2020, 05:01

💬 Personal EPD terminal OpenHardware.io • weather forecast epd message push • 15 Jul 2020, 20:07 • openhardware.io 16 Jul 2020, 02:14

💬 MySX STM32 BluePill OpenHardware.io • mysx stm32 bluepill • 10 Jul 2020, 20:46 • openhardware.io 10 Jul 2020, 20:46

💬 MySX Relay 4 OpenHardware.io • relay mysx • 8 Jul 2020, 08:29 • openhardware.io 8 Jul 2020, 08:29

💬 ESP8266 Power Monitor OpenHardware.io • 2 Jul 2020, 08:12 • openhardware.io 20 Jul 2020, 15:52

💬 Segment serial indicator&encoder OpenHardware.io • encoder serial indicator • 23 Jun 2020, 10:11 • openhardware.io 7 Jul 2020, 18:11

💬 nRF52840 MINI DEV BOARD EFEKTA OpenHardware.io • nrf52840 • 18 Jun 2020, 16:38 • openhardware.io 27 Apr 2021, 09:00

💬 MySensors RS-485 Universal Module OpenHardware.io • mysensors sensor rs485 button 485 wall plate • 18 Jun 2020, 05:45 • openhardware.io 18 Jun 2020, 18:40

💬 air quality motherboard for sensor.community project
OpenHardware.io • sensor.community luftdaten dust sensor • 9 days ago • openhardware.io 9 days ago

💬 Syma S107 Bluetooth mod (connect any toy with your phone!)
OpenHardware.io • nrf52832 nrf52 remote control hack bluetooth low energy toys • 29 Aug 2023, 11:13 • openhardware.io 29 Aug 2023, 11:13

💬 SimSpirit Motion Simulator Support 360° Yaw, Pitch and Roll
OpenHardware.io • motion-simulator head-tracking • 10 Jul 2023, 16:54 • openhardware.io 10 Jul 2023, 16:54

💬 VR-Shield
OpenHardware.io • bluetooth shield sensors virtual reality imus • 10 May 2023, 10:20 • openhardware.io 10 May 2023, 10:20

💬 Epi 32U4 Arduino-compatible, 4-layer version
OpenHardware.io • arduino usb micro mcu atmega keyboard atmega32u4 • 4 Feb 2023, 13:41 • openhardware.io 4 Feb 2023, 13:41

💬 Pinect Hand-Free Game Console
OpenHardware.io • arduino pcb motion sensor console game android scheme camera • 26 Jan 2023, 17:52 • openhardware.io 26 Jan 2023, 17:52

💬 Easy Switch Box
OpenHardware.io • mysensors arduino switch atmega328 lora low power • 14 Dec 2022, 20:57 • openhardware.io 14 Dec 2022, 20:57

💬 VikingCube-WT
OpenHardware.io • modularsynth oscillator adsr vca • 2 Dec 2022, 06:57 • openhardware.io 2 Dec 2022, 06:57

💬 VikingCube-Midi
OpenHardware.io • modularsynth usb-midi • 2 Dec 2022, 06:57 • openhardware.io 2 Dec 2022, 06:57

💬 6Gang30AmpsLatchRelayEspHomeReady
OpenHardware.io • power esp32 mains voltage esphome matter latching relay • 29 Nov 2022, 19:11 • openhardware.io 1 Dec 2022, 06:49

💬 VikingCube-MUL
OpenHardware.io • modularsynth passivemul • 26 Nov 2022, 13:41 • openhardware.io 26 Nov 2022, 13:41

💬 Anna2040 RP2040 Uno-shaped board
OpenHardware.io • arduino uno arduino uno pico • 25 Nov 2022, 18:24 • openhardware.io 25 Nov 2022, 18:24

💬 Hammar 32 bit 3D printer controller
OpenHardware.io • esp32 3d print reprap 3d printer cnc marlin wroom-32 • 25 Nov 2022, 15:53 • openhardware.io 25 Nov 2022, 15:53

💬 TinyReflow solder plate
OpenHardware.io • arduino smd soldering solder reflow • 8 Nov 2022, 19:43 • openhardware.io 14 Nov 2022, 12:07

💬 Epi, tiny ATMega32U4 Arduino-compatible
OpenHardware.io • arduino micro keyboard • 8 Nov 2022, 19:08 • openhardware.io 8 Nov 2022, 19:08

💬 Hematuria Meter
OpenHardware.io • arduino spectrophotometer weight sensor 3d printed • 31 Oct 2022, 06:41 • openhardware.io 31 Oct 2022, 06:41

💬 Home Energy Sensor
OpenHardware.io • energy monitor home automation esphome • 21 Sept 2022, 05:45 • openhardware.io 21 Sept 2022, 05:45

💬 Rosmo:Bot
OpenHardware.io • 21 Sept 2022, 05:45 • openhardware.io 21 Sept 2022, 05:45

💬 backup power auto-switch circuit
OpenHardware.io • power module • 4 Aug 2022, 14:52 • openhardware.io 12 Sept 2022, 14:09

💬 Small arduino pro mini rfm69 shield
OpenHardware.io • mysensors rfm69 arduino pro mini • 2 Aug 2022, 15:03 • openhardware.io 3 Aug 2022, 00:26

💬 BC805M (nRF52805) development board integrated with nRF52-DK
OpenHardware.io • 5 Jul 2022, 21:14 • openhardware.io 11 Jul 2022, 22:37

💬 nRF52-DK external programming shield
OpenHardware.io • 5 Jul 2022, 17:33 • openhardware.io 5 Jul 2022, 17:33

💬 XL Proto-Breadboard
OpenHardware.io • 29 Jun 2022, 19:02 • openhardware.io 29 Jun 2022, 19:02

💬 Fork of BigClive AA Battery Trickle Charger
OpenHardware.io • 26 Jun 2022, 23:45 • openhardware.io 21 Jan 2023, 17:58

💬 nRF24L01 Adapter Board (AH)
OpenHardware.io • mysensors • 22 Jun 2022, 05:35 • openhardware.io 22 Jun 2022, 05:35

💬 Ra-01 400Mhz LoRa AI-Thinker adapter board
OpenHardware.io • 6 Jun 2022, 15:24 • openhardware.io 6 Jun 2022, 15:24

💬 RFM69 900Mhz Adapter Board
OpenHardware.io • 6 Jun 2022, 15:22 • openhardware.io 6 Jun 2022, 15:22

💬 nRF24L01 adapter board
OpenHardware.io • 6 Jun 2022, 15:19 • openhardware.io 6 Jun 2022, 15:19

💬 Ra-01SH 900MHz AI-Thinker LoRa adapter board
OpenHardware.io • 6 Jun 2022, 15:17 • openhardware.io 6 Jun 2022, 15:17

💬 DRF1262T/G 900Mhz LoRa adapter board
OpenHardware.io • 6 Jun 2022, 15:16 • openhardware.io 6 Jun 2022, 15:16

💬 E28-2G4M27S adapter for v2.0 atmega328p test platform
OpenHardware.io • 30 May 2022, 04:08 • openhardware.io 30 May 2022, 04:08

💬 Version 3.0 atmega328p test platform
OpenHardware.io • 30 May 2022, 04:03 • openhardware.io 16 Jul 2022, 01:07

💬 MySensors TouchScreen Thermostat on Arduino Mega PRO
OpenHardware.io • 22 May 2022, 14:42 • openhardware.io 22 May 2022, 14:42

💬 EBYTE E28-2G4M27S (SX-1280 chip) 2.4GHz LoRa Breakout Board
OpenHardware.io • 1 Apr 2022, 07:36 • openhardware.io 1 Apr 2022, 07:36

💬 Yet Another WLED Controller
OpenHardware.io • wled • 20 Feb 2022, 21:43 • openhardware.io 20 Feb 2022, 21:43

💬 Reperter/Gateway USB Mysensors
OpenHardware.io • gateway mysensor seeduino xiao repeter fumeebeleue • 5 Feb 2022, 17:10 • openhardware.io 5 Feb 2022, 17:10

💬 ESP fil pilote SMD version
OpenHardware.io • heater command esp8266 • 25 Nov 2021, 14:09 • openhardware.io 25 Nov 2021, 14:09

💬 mySensor 3*Relay Din Format
OpenHardware.io • mysensor nrf52832 din • 27 Oct 2021, 17:03 • openhardware.io 27 Oct 2021, 17:03

💬 Valden: Heat Pump Controller
OpenHardware.io • arduino power diy thermostat heating gerber refrigerant refrigeration compressor rs-485 green-energy heat-pump eev txv cappilary heat-exchange • 4 Sept 2021, 06:43 • openhardware.io 4 Sept 2021, 06:43

💬 ADP5054 Quad Buck Regulator For FPGA And Processor
OpenHardware.io • pcbdesign circuitdesign powercircuit analogdevices • 29 Aug 2021, 17:57 • openhardware.io 29 Aug 2021, 17:57

💬 0V85-30A Buck Converter for FPGA using TPS549D22
OpenHardware.io • pcbdesign circuitdesign powercicuit • 28 Aug 2021, 06:34 • openhardware.io 28 Aug 2021, 06:34

💬 Arduino Based Serial Controller For Welding Machine
OpenHardware.io • arduino controller adc dac • 27 Aug 2021, 07:05 • openhardware.io 27 Aug 2021, 07:05

💬 A Step-Down Switching Regulator Using MP1584
OpenHardware.io • powermodule step-down switching regulator • 26 Aug 2021, 14:07 • openhardware.io 26 Aug 2021, 14:07

💬 Tactile and Pushbutton Switches Module
OpenHardware.io • switch board tactile switch pushbutton switch • 25 Aug 2021, 15:33 • openhardware.io 25 Aug 2021, 15:33

💬 Detecting Mains Voltage Module
OpenHardware.io • sensor mains voltage ac sensor ac detection • 25 Aug 2021, 08:35 • openhardware.io 25 Aug 2021, 08:35

💬 miBlackHomeSVR
OpenHardware.io • raspberry rs485 iot lora home automation • 20 Aug 2021, 05:36 • openhardware.io 20 Aug 2021, 05:36

💬 7-Segment LEDs Module Using Shift Register CD74HC595
OpenHardware.io • 7-segment led 74hc595 shift register • 15 Aug 2021, 06:54 • openhardware.io 15 Aug 2021, 06:54

💬 Raspberry Pi Fan Breakout
OpenHardware.io • raspberry pi raspberry gpio breakout board raspberry pi 3 fan breakout • 20 Jul 2021, 13:31 • openhardware.io 20 Jul 2021, 13:31

💬 HVAC Recuperator control
OpenHardware.io • mysensors hvac recuperator • 18 Jul 2021, 17:33 • openhardware.io 18 Jul 2021, 17:33

💬 Air quality and weather forecast sensor
OpenHardware.io • nrf52840 bme280 air quality weather forecast nrf52833 sgp40 max44009 • 25 May 2021, 09:25 • openhardware.io 8 Jul 2021, 11:33

💬 Fairy light led string controller
OpenHardware.io • fairylight • 23 May 2021, 14:17 • openhardware.io 23 May 2021, 14:17

💬 Uno Gateway shield NRF24L01+ version
OpenHardware.io • gateway arduino uno nrf24l01+ • 23 May 2021, 12:13 • openhardware.io 23 May 2021, 12:26

💬 RFM Linky
OpenHardware.io • arduino arduino pro mini energy monitor energy meter edf enedis linky • 3 Apr 2021, 17:05 • openhardware.io 3 Apr 2021, 17:05

💬 MqGateway
OpenHardware.io • gateway mqtt wired • 16 Mar 2021, 20:15 • openhardware.io 31 Aug 2022, 20:18

💬 Capacitive Soil Moisture Sensor
OpenHardware.io • mysensors nrf24l01+ atmega328p soil moisture capacitive soil moisture • 14 Mar 2021, 23:14 • openhardware.io 14 Jan 2022, 15:42

💬 Universal Inputs Modbus Module
OpenHardware.io • relay modbus analog digital input universal inputs • 23 Feb 2021, 00:30 • openhardware.io 23 Feb 2021, 13:51

💬 LCDUINO
OpenHardware.io • serial arduino nano lcd uart • 23 Feb 2021, 00:29 • openhardware.io 3 May 2021, 08:35

💬 Arduino NANO sensor board
OpenHardware.io • arduino nano sensor board • 19 Feb 2021, 16:11 • openhardware.io 19 Feb 2021, 16:11

💬 MySX Power Board 18650
OpenHardware.io • battery power power supply mysx 18650 • 23 Jan 2021, 11:33 • openhardware.io 23 Jan 2021, 11:33

💬 EFEKTA V4 Temp&Hum&Press sensor with E-Ink 1.54
OpenHardware.io • nrf52832 nrf52 si7021 nrf52840 bme280 htu21d sht21 e-ink display nrf52833 • 29 Dec 2020, 18:48 • openhardware.io 29 Dec 2020, 18:48

💬 Leaky - water detector
OpenHardware.io • mqtt esp8266 home assistant water leak • 12 Dec 2020, 08:10 • openhardware.io 21 Dec 2020, 09:53

💬 MySX Prototype board
OpenHardware.io • mysx prototype • 2 Dec 2020, 13:30 • openhardware.io 2 Dec 2020, 13:30

💬 InlineCleaner
OpenHardware.io • super8 film cleaner film cleaner super 8 • 23 Nov 2020, 12:36 • openhardware.io 24 Nov 2020, 06:32

💬 Mini weather station with e-ink 2.9 Inch
OpenHardware.io • mysensor nrf52 bme280 weather forecast • 30 Oct 2020, 15:26 • openhardware.io 8 Jul 2021, 11:36

💬 CMSIS-DAP
OpenHardware.io • stm32 debugger • 3 Oct 2020, 18:04 • openhardware.io 3 Oct 2020, 18:04

💬 Simple compact RS485 node v2 (ATmega328 + MAX3485 + W25X40)
OpenHardware.io • 22 Sept 2020, 17:04 • openhardware.io 14 Oct 2020, 14:56

💬 Mini temperature and humidity sensor with e-ink 1.02 Inch
OpenHardware.io • nrf52832 si7021 htu21d nrf52811 sht21 nrf52810 sht20 e-paper e-ink • 11 Sept 2020, 15:55 • openhardware.io 14 Mar 2021, 13:25

💬 MyGateway
OpenHardware.io • mysensors gateway rfm69 ethernet poe • 18 Aug 2020, 03:59 • openhardware.io 6 days ago

💬 PulseTAC
OpenHardware.io • 12 Aug 2020, 20:10 • openhardware.io 13 Aug 2020, 12:59

💬 IRShine
OpenHardware.io • 12 Aug 2020, 20:09 • openhardware.io 12 Aug 2020, 20:09

💬 Capacitive touch switch module with LED illumination
OpenHardware.io • 31 Jul 2020, 15:21 • openhardware.io 31 Jul 2020, 15:21

💬 MICRO MULTI SENSOR
OpenHardware.io • nrf52832 si7021 bme280 cr2032 htu21d nrf52811 sht20 nrf52810 tmp117 lmt01 lis2dw12 lis2dh12 • 22 Jul 2020, 19:25 • openhardware.io 23 Jul 2020, 05:01

💬 Personal EPD terminal
OpenHardware.io • weather forecast epd message push • 15 Jul 2020, 20:07 • openhardware.io 16 Jul 2020, 02:14

💬 MySX STM32 BluePill
OpenHardware.io • mysx stm32 bluepill • 10 Jul 2020, 20:46 • openhardware.io 10 Jul 2020, 20:46

💬 MySX Relay 4
OpenHardware.io • relay mysx • 8 Jul 2020, 08:29 • openhardware.io 8 Jul 2020, 08:29

💬 ESP8266 Power Monitor
OpenHardware.io • 2 Jul 2020, 08:12 • openhardware.io 20 Jul 2020, 15:52

💬 Segment serial indicator&encoder
OpenHardware.io • encoder serial indicator • 23 Jun 2020, 10:11 • openhardware.io 7 Jul 2020, 18:11

💬 nRF52840 MINI DEV BOARD EFEKTA
OpenHardware.io • nrf52840 • 18 Jun 2020, 16:38 • openhardware.io 27 Apr 2021, 09:00

💬 MySensors RS-485 Universal Module
OpenHardware.io • mysensors sensor rs485 button 485 wall plate • 18 Jun 2020, 05:45 • openhardware.io 18 Jun 2020, 18:40

💬 ESPboy: Games, IoT, STEM for education & fun (ESP8266 core)
OpenHardware.io • arduino esp8266 iot diy console gadget retro game • 9 Jun 2020, 18:29 • openhardware.io 14 May 2021, 03:04