💬 Easy/Newbie PCB for MySensors



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  • Hello @sundberg84. I watched your video 9+ 'MySensors Battery Node 2xAA - EasyPCB (Nrf24l01+)and Temp Sensor' . I have two questions about this video:

    • I noticed you connected the tempsensor to the extra prototype part of the board, but i could not see in the video how you connected signal pin of the sensor to the arduino.
    • you added a resistor to D5 Temp/Hum, but you did not add the sensor to the mysX2.4 part of the board. Why is that?

  • Hardware Contributor

    @mister_ik said in 💬 Easy/Newbie PCB for MySensors:

    Hello @sundberg84. I watched your video 9+ 'MySensors Battery Node 2xAA - EasyPCB (Nrf24l01+)and Temp Sensor' . I have two questions about this video:

    • I noticed you connected the tempsensor to the extra prototype part of the board, but i could not see in the video how you connected signal pin of the sensor to the arduino.
    • you added a resistor to D5 Temp/Hum, but you did not add the sensor to the mysX2.4 part of the board. Why is that?

    I connect it on the back with a normal wire to D5 resistor input. So both of your observations above are correct.



  • @sundberg84 yes i thought so, but i want to make sure. I have some Rev 10 boards and i was working on a node for my bathroom with a DHT11 sensor. I had some problems with it, therefore watching your video. But it looks like the step up booster was not working correctly. Unfortunately removing the booster i damaged the board because with a new booster the arduino won't get power any more. So this board only works without the booster (and reg jumper connected). Any idea how long this setup (with removed led on arduino) will last on batteries?


  • Hardware Contributor

    @mister_ik - well, 2-4 weeks more or less unless you reprogram the fuses and bootloader.



  • @sundberg84 ooh that is not very long ..i hoped for a couple of months....but then I should consider this board as depreciated and build a new one and use this for development. Thanks for your reaction.


  • Hardware Contributor

    @mister_ik you can always use wired to repair the damaged tracks.



  • @sundberg84, thanks so much for this board, I bought 10 of them. This has made my sensor projects much easier and they look better too! I think I will get some of the RFM69 version next.

    I have a lot of gel lead acid batteries (the 7.2AH type often used in UPSs), and I have been running an earlier prototype off that. I have now just changed over to your board and this is how I modified it to work the way I wanted:

    • Cut the track circled
    • Hard wired from the regulator side of the battery jumper to VCC on the Pro Mini
    • Bridged the booster In to Out
    • Changed the battery measuring resistors to 12k/180k for greater range

    This enabled me to run the board off 12V, keep an eye on the battery voltage, and run the rest from the LE33 regulator. It seems to be managing so far, with 3 x DS18B20 temperature sensors. I'm monitoring the fridge outside, inside and freezer temperatures with this module.

    0_1540535341222_combined board mods 3V3 Reg_20181026_170050.jpg



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  • Hardware Contributor

    @ajay100 - Hi!
    Really nice to see you found your way of using my PCB, its just the way I want it 🙂
    I tried to follow along here, are you using the LEd33 to convert 12v to 3.3v? I guess you tried RAW and the voltage regulator on your pro mini and found out it was bad due to cheap clones?

    If you cut the trace just above the volt.reg and put a jumper from REG to Vin on the Volt reg, and added a jumper from Bat (top) to Reg (top) you would also feed everything with whatever comes out from the LE33.

    0_1540545775768_55d6843d-eb8d-4902-940b-d16101885538-image.png (I think)



  • @sundberg84, I've just tried it and that is a better solution than mine for running everything from the LE33. Thanks for taking the time to work that out!

    Cheers - Andrew



  • Hey @sundberg84 I just saw the new rev.10, congratulations on the upgrade!
    I still have a bunch of rev 9, do you happen to have images/manual for previous version somewhere? link or a pdf?
    Thanks!


  • Hardware Contributor

    @dakipro - sorry, everything was saved here on oh.
    Is there something special you need? I can maybe send it to you, like schematics or what are you looking for?


  • Admin

    Zip files with old revisions get stored on openhardware.io but is not exposed in any good way for the end user today. They're only accessible for the manufacturers.

    I will see if I can show it somehow. Maybe a new tab on the project page listing old revisions with download links.


  • Admin



  • Thank you @hek , I think this might be useful feature
    I however do not see any data in there, is it something for project owner to allow?
    I tried both as guest and as logged inn, I do see the rows, but no data in fields, screenshot:

    0_1542407389061_Screenshot 2018-11-16 23.28.04.png

    @sundberg84 nothing special about now, I figured it out based on older projects. But since I still have about dosen of boards, I will probably need documentation few years from now, so was just hoping to have it somewhere easily available 🙂 Like a downloaded pdf or something


  • Admin

    Thanks for reporting @dakipro. It seems to have been a caching issue in the service. Should not appear again.



  • Me too i still have a bunch of rev 9. Where can i have all the old informations for this rev? I need to see the old webpage with instructions. Thank you !



  • Thanks @hek it is certainly helpful. However the most powerful information is actually in the description page, about how to use the board, how to wire it up for different use cases etc. I suppose a previous version of the information tab is not available?
    If it could be archived (maybe even linked somewhere) it would be really helpful!


  • Admin

    The documentation at the time of the created revision is actually included in the zip as README.md (markdown).
    You should be able to view the file properly formatted in an md-editor or online using I.e.. https://dillinger.io/

    Uploaded images was never included in the revision dumps unfortunately.



  • Ooops, my bad then 😞 I was pretty sure I checked readme.md file, but apparently I got confused.
    Thanks a million!



  • I am also looking for documentation for Rev. 9 that I purchased. The link with revisions that was provided: https://www.openhardware.io/view/4/EasyNewbie-PCB-for-MySensors#tabs-revisions
    lists revisions 1-7, but not 9. All I need is readable schematic and PCB layout in PDF. Thanks.


  • Mod

    @apl2017 I don't know where the revision numbering comes from, but I believe the rev9 you are talking about is called rev5 on the revisions tab.

    Rev 10 was created 2018-06-04. That date matches with rev6 on the revisions tab.

    Perhaps @sundberg84 knows why there are two sets of revision numbers?



  • What software was used to develop this board? My latest KiCad does not read schematic from Rev. 5 ZIP file. All I need is a simple PDF...


  • Hardware Contributor

    @apl2017 - Rev 10 = Kicad, but all below is Eagles.

    This is Rev 9, Nrf24l01+

    0_1546847202029_Rev9 Schem.jpg

    @mfalkvidd - the rev tab in openhardware is the revision for the manufacturer. This doesnt match, because it starts at 0 and ticks up. If you have a board with rev 1 but make a small change without updating the revision number but still wants to upgrade it to the pcb manufacturer you need a new revision for them... so thats causes the confusion. But i think @hek named it M.Rev (Manufacturer revision) to try to keep them apart.



  • Sorry to bother you again (3rd time), still waiting for readable PDF of Rev. 9 schematic and board layout. Thank you


  • Hardware Contributor

    @apl2017 - why pdf? The image above is just as good? It wont present any other info?
    The reason why I ask is that I dont have eagles installed anymore... so its a bit of hassle for me.



  • sundberg84 Don't bother, I went through the hassle, downloaded Eagle and created readable PDF



  • @apl2017 care to share? 🙂



  • Hey, @sundberg84 , I am trying to order the rfm69 version from ITEAD and their M.Rev1 file I downloaded looks to be your v9. Can you upload the v10 to them so I may place an order?



  • Hello, i have built my first sensor based on your PCB. I am of course in learning mode so it refuses to work so far. it is motion detector. I suspect a problem on the radio nrf24 but does not know how to monitor the node with Arduino IDE serial monitor. If i connect the board to the USB the radio is not powered (built the node on battery). and if i connect the battery i have no access to serial monitor. I am afraid to connect both the USB and the batteries and burn the all thing...
    so far i know radio receives power/ PIR receives 3.3 Volts (have configured the PIR to 3.3)/ arduino mini pro led comes on with battery connected.
    Any advice would be really welcome.



  • The radio is only powered by the battery, the battery must be connected to test. Connect both the usb (set to 3.3v) and the battery, no damage will be caused by this.



  • Thanks Stephen. connected both and i can now see what is going on 🙂


  • Hardware Contributor

    @ElCheekytico - I dont know why they wont update to rev 10. I have uploaded the new revision to openhardware... nothing else I can do, sorry.


  • Hardware Contributor

    @pierre1410 - I would suggest you connect the battery, and then the usb/ftdi cable, but only GND, TX and RX fro the usb connection. This will have the node running on the batteries VCC and get you closer to the real deal. Using VCC from the usb adapter might be higher VCC than the batteries, and in worst case scenario it works great with that connected but not when you deploy and only use battery power.



  • @sundberg84 that is exactly what i experienced. thanks for the tip. struggling in fact to have my PIR sensor running on 3.3V. when i connect to the pin on the right of the board (3rd from top).. Arduino IDE serial terminal does not outcome any coherent information.


  • Hardware Contributor

    @pierre1410 ok - well not to get your hopes down but a motion detector on batteries are one of the harder builds. If you are using a booster with the batteries it's harder due to false triggers from the booster noice. Also I believe the quality of your motion detector module determine if it's possible..I've had detectors running fine on 3.3v but several which didn't.



  • Hello, Is there a way to solder a DC-DC booster 3.3V to 5V directly onto the Easy PCB or should it be connected separately to power a PIR for instance? and would that really prevent using 2xAA batteries to power the all thing? have tried to step down the PIR to work at 3.3V but it was not conclusive. Thanks a lot.


  • Hardware Contributor

    @pierre1410 - you can always use the prototyping area for a 3.3 to 5v booster but... booster + PIR might cause false triggers, so choose your booster wisely.



  • @sundberg84, had to migrate my gateway to Ethernet in the meantime but now I am on the PIR/ battery case. i have my booster to 5V in.. will post the results of it...


  • Mod

    @pierre1410 why do you need 5v? There are pir sensors working at 3v and you can even modify the standard pir sensor to work at 3v


 

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