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Talk about fun sensor hardware, MCUs, PCBs and how to power your sensors here.
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  • Compact and low cost MySensors + NRF24L01 Board Project

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    Small update here. I've been working on the routing part. it's been years since i played with the nets, and wires on Eagles ... Oh boy, its a mess ! and while placing, moving components, i was thinking , wow, the Balun filter, the NRF24L01 are going to be impossible to hand solder correctly ! and I don't really want to buy a microscope, a $300 soldering station, ... So I looked around and found something interesting so I post it here, if some makers don't know about it, and are afraid of SMD soldering : OSH also make stencil for you, Kapton stencil for $5 ! https://www.oshstencils.com/index.php then it's a peace of cake :-) or is it ? https://www.youtube.com/watch?v=1RMtOAHbfvU Has anyone tried it before ? I'll definitely try it
  • Which ATmega do i go with?

    atmega microcontroller stand alone diy arduino
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    tbowmoT
    @samuel235 I'm using genuine atmel programmers (currently I'm on jtagice3) been serving me fine for the last couple of years (also have the added benefits of being able to work together with gdb, so I can debug arduino code on my atmel sam D21 mcu) Anyways, there are lot's of (cheaper) programmers out there, amongst others you could use another arduino as programmer..
  • adding libraries in proteus

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  • Error flashing bootloader to atmega328p au board I design

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    @AWI said: @Mickey Maybe you need to disconnect the radio. I am not able to use SPI programming with the radio connected... I also thought that but I made another board without the radio with the same error. I needed a fast way to figure it out so I desolder the atmega from an old arduino nano board but before I did it I read the fuses and got this: [image: 1449616155078-nanofuses.png] then I soldered the virgin series I have and read the fuses: [image: 1449616196773-virginfuses.png] so first of all It appears that I need the chips first hook up to an external clock just to be able to read the fuses and then change them.
  • This topic is deleted!

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  • Serial Gateway Between Two Pro Mini's - More Info?

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    HopWorksH
    OK, this worked and I am encouraged! I haven't figured out how to get the status LED's to work yet though, since they just stay on (after enabling it in the config H file). Unless I missed it though, I do not know what the fields are that are output via serial. If I do not find the info, I guess I could just reverse-engineer the software to figure out how to send simple data back and forth from each unit. Pretty cool library! Heavy though, but not as heavy as expected. I still have room for my RGB LED effects processing. Now I just need to see if my interrupt handling using timer1 is going to hose this library. Any thoughts?
  • ESP32 Announced

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    YveauxY
    Video streaming! Yeah baby :tada:
  • Box for in wall pcb

    box pcb inwall
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    scalzS
    @martinhjelmare: yep, I like the vid too. it's funny to see all these new materials. :) you are right, I will use parts of rollershutternode I think, for the ac powered version. for the batt powered, I will use my "camel" sensor board plus others thing of others boards I made. I totally agree with you. When I do something I try to keep things reusable. As I am originally software dev, I always think factorizing, libs like a toolbox...lol. But I think electronician do the same.
  • My sensorboard MYS 1.0beta

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    @jeti said: @Nicola-Reina said: Anybody wanting 10 kits at a bargain price. I am sellling them at bargain price due to lack of time to play with them. If you are in Rome I can hand it over directly . If you are at EU maker faire this week end even better see you there. Otherwise I ship them too KR Still got the 10Kits? You can still buy these kits from my homepage.
  • Getting the HC-SR501 to function first time

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  • {QUESTION} Battery Sensor example

    voltage divider battery monitor arduino nano
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    m26872M
    @drock1985 Maybe some hints here.
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  • Quadrocopter with NRF24L01? Yes :)

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    martinhjelmareM
    Automatically controlled drones as part of the security system, anyone? :stuck_out_tongue_winking_eye:
  • nRF24L01 Large network help needed

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    Finally found the repo for what i think is the raspberry pi MQTT Gateway... Link, I'm assuming the file i need to be looking at is the MyGatewayTransportMQTTClient.cpp. However, there is no MakeFile there, am i being stupid or blind, how would i compile this gateway file to then be able to run it?
  • Wiring MQ-2 Gas Sensor

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    alexsh1A
    @epierre said: @alexsh1 said: Depends on your sensor. you do not have to add anything. yes and no, you don't have a datasheet for the board... 10K is 10K so you know it ;-) Actually, I have the datasheet for my board and this is adjustable resistor :) Anyway, I got mine working without any additional 10k resistors. I hope it helps.
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    tbowmoT
    @Sparkman You are right. The pin names on the sensebender, corresponds to the pin names on the arduinos, so the interrupt on D3 is the same as on the arduino.
  • Sensebender and attachInterrupt

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    alexsh1A
    So it is the same as Nano (2 and 3 only) - many thanks!!!
  • wireless serial communication

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    @siklosi thanks, so that means this module would be only good for serial monitor? Is it possible to do serial monitoring with mysbootloader / myscontroller? I am currently using serial gw with vera - if I am to use myscontroller do I have to disconnect it from vera and connect it with computer running myscontroller?
  • Minimal design thoughts

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    tbowmoT
    @Magnus-Pernemark It's all ceramics.. (also the 4.7uF for radio)
  • Use ESP8266 as serial gateway?

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