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💬 NRF52 In Wall-Dimmer

openhardware.io 5 Oct 2019, 07:10 last edited by openhardware.io 5 Oct 2019, 08:26

https://www.openhardware.io/view/729/NRF52-In-Wall-Dimmer
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26 Dec 2017, 21:00

Please append support RS485
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Love the big red button!
Car battery health monitoring and alerts system with IoT integration
My Project • mysensors temperature led ota iot wifi battery powered bluetooth ble low power rgb motion sensor hardware 3d print battery sensor fota mcu enclosure battery monitor pcb layout battery voltage bluetooth low energy measurement alarm system software antenna 32bit pcb manufacturi pcba dc-to-dc • 7 Jan 2021, 20:57 • William Meli 10 Jan 2021, 11:51

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10 Jan 2021, 11:51

@NeverDie Thx for appreciating the work done. There will also be an open source part in the future. When and how extensive the open source part will be, remains to be seen. The release of certain information (block diagram, ..., in this post) is related to those open source parts. There are some OBD solutions, however most of them (in my experience) give back low frequency data put by the car manufacturer on the OBD-bus (CAN, ...). Therefore transients evolving directly from the battery could only be recorded if the manufacturer sends those data accordingly on the bus. Due to the small bandwidth(also because of other car data that have to be sent, ...), such battery data are sent more often once per second or less. Fast battery events (i.e. cranking events, ...) are therefore imperceptible. Unless the manufacturer processes the fast events and then sends them (once per second or less), which is very unlikely if the manufacturer does not market this feature itself. Third parties devices for high frequency sensing costs several hundreds dollars. In my experience, important battery states (especially the fast ones) are recorded by measuring and processing corresponding data directly on the battery. I agree with you about the limits related to the communication over Bluetooth. But i think Bluetooth 5.0 will improve a lot. However, WiFi will always remain an important option due to the high data throughput. The combination of both (BLE & WiFi), especially with regard to energy consumption, will gain in importance.
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@Dwalt Thank you very much, now I understand better why the measurement of the voltage on input A0 was never good ..
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21 Jan 2018, 16:54

I like those relays. Is that 3 different switched outputs? One thing I always liked about european wall switches is that they give you more room for components. I would like to use a similar type of relay for my in-wall switches, but with the way US single gang wall boxes are, there is a pretty narrow space constraint. I might be able to fit it if I did away with the thermal fuse, but I don't want to give up tat bit of added safety just for that.
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Hello Tilman, this is really a very nice design. I have ordered a pack of PCBs from elecrow, based on your gerber files, and have a few questions: in your BOM you have listed 5 smd-capacitors and 7 smd resistors, but on the PCB i have solderpads for 6 capacitors and 8 resistors. Can you just explain? is there a uniflächentaster-model for 2 ways? i think i have to flash the bootloader first, do you have a tutorial for this, and a sample-sketch for the board? Thank you very much
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3 Feb 2019, 18:22

Sorry. Disregard.
Orientation Sensor
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I do not was time for this but want to try.

💬 NRF52 In Wall-Dimmer

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💬 NRF52 In Wall-Dimmer

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💬 MDMScreen OpenHardware.io • mysensors arduino nrf24l01 rfm69 atmega328p lcd nextion spi flash touchscreen • 26 Dec 2017, 16:26 • openhardware.io 26 Dec 2017, 21:00

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Orientation Sensor OpenHardware.io • mysensors orientation • 23 Mar 2016, 11:24 • openhardware.io 30 Apr 2017, 20:50

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OpenHardware.io • mysensors contest2017 • 6 Apr 2017, 20:55 • openhardware.io 6 Apr 2017, 21:05

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OpenHardware.io • mysensors contest2016 • 1 Feb 2016, 13:01 • openhardware.io 8 Jul 2017, 08:20

💬 MySensors Light Switch
OpenHardware.io • mysensors nrf24l01 hlk-pm01 solid state relay • 18 Apr 2017, 11:18 • openhardware.io 21 Jan 2018, 16:54

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OpenHardware.io • mysensors temperature battery humidity switch • 2 Jul 2017, 12:52 • openhardware.io 2 Jan 2018, 16:56

💬 MySWeMosIRShield - IR blaster shield for WeMos D1
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