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    Michiel van der Wulp

    @Michiel van der Wulp

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    Website michiel.vanderwulp.be Location Brugge, Belgium

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    Best posts made by Michiel van der Wulp

    • RE: how to post a new sensor sketch?

      I gave some remarks on the code, which were processed.
      If there is a feeling that adding the HeatIndex complicates the example, maybe this example should be a separate file, named "DhtHeatIndexSensor"?

      posted in Development
      Michiel van der Wulp
      Michiel van der Wulp
    • RE: 💬 Sensebender Micro

      OK, I understand.
      My confusion was caused by the second sentence at https://www.mysensors.org/hardware/micro : "... it operates at 1Mhz ..."
      That's a mistake then?

      posted in OpenHardware.io
      Michiel van der Wulp
      Michiel van der Wulp

    Latest posts made by Michiel van der Wulp

    • RE: PlatformIO and Sensebender

      Tested this today: it works fine!

      In the meanwhile,I also found this:
      https://forum.mysensors.org/topic/2725/sensebender-micro/30

      My platformio.ini file:

      
      [platformio]
      src_dir = WindowOpenSensor
      
      [env:sensebender-micro]
      platform = atmelavr
      board = pro8MHzatmega328
      framework = arduino
      monitor_speed = 19200
      lib_deps =
        548  ; MySensors
      
      posted in Development
      Michiel van der Wulp
      Michiel van der Wulp
    • RE: Help modifying sketch for rf-nano

      The comments at the top in the first two sketches mention the pin numbers of the CE and CS pins reversed, the code itself is correct.
      The third sketch lacks these definitions, so it won't work.

      posted in General Discussion
      Michiel van der Wulp
      Michiel van der Wulp
    • RE: PlatformIO and Sensebender

      Can I use this board to use the Sensebender micro with Platformio?
      https://docs.platformio.org/en/latest/boards/atmelavr/pro8MHzatmega328.html
      This is the 3.3V 8MHz version of the Arduino Pro Mini, which seems correct to me.

      posted in Development
      Michiel van der Wulp
      Michiel van der Wulp
    • RE: how to post a new sensor sketch?

      I gave some remarks on the code, which were processed.
      If there is a feeling that adding the HeatIndex complicates the example, maybe this example should be a separate file, named "DhtHeatIndexSensor"?

      posted in Development
      Michiel van der Wulp
      Michiel van der Wulp
    • RE: Better battery reporting

      @thierryd Nice idea.

      Two remarks:

      You write in the cpp file:

      if (BatteryType == 2) {
      /* LiPo voltage ...

      You probably mean here "AA voltage"

      The AA batteries you talk about are Alkaline (not rechargeable)?
      The values are different for NiMH rechargeable (which I always use).

      posted in Development
      Michiel van der Wulp
      Michiel van der Wulp
    • RE: Devices are not showing some sensors on the node

      @gohan yes it confuses me too. I have a similar situation where my node with 2 sensors is recognized by Domoticz as 3 devices like: Temp, Hum, Temp+Hum.

      Apparently Domoticz is able to recognize that the different sensors belong together, but sometimes, there is a disturbance or bad reception in one sensor message, and then Domoticz creates a new device for it.

      That would not be such a problem, except that you do not know which device to show on the Domoticz dashboard. Personally, I choose the combined one, ignore the others, and live with it.

      I do not know if this is a bug for the Domoticz people, maybe they can resolve this?

      Regards, Michiel

      posted in Domoticz
      Michiel van der Wulp
      Michiel van der Wulp
    • RE: Doubling amount of soil sensors using transistors?

      Oh, I just remembered, a 4051 contains a 1-of-8 multiplexer, and is cheap.
      Look also at the 4052 which contains two 1-of-4 multiplexers.
      Search on ebay for: 4051 DIP

      posted in Development
      Michiel van der Wulp
      Michiel van der Wulp
    • RE: Doubling amount of soil sensors using transistors?

      I would use a 4067 IC for the analog voltage, and probably a second 4067 to switch the power. Then you will only need one analog line of the Arduino, and a few digital lines.
      See http://assets.nexperia.com/documents/data-sheet/HEF4067B.pdf
      The 4067 is one of the 4000 series CMOS chips, which work with 3V to 15V power supply. It contains a 1-of-16 multiplexer of analog switches. For a smaller number of analog switches, you could use 4016 or 4066.

      posted in Development
      Michiel van der Wulp
      Michiel van der Wulp
    • RE: Gateway just another sensor node?

      Please check if you are not having resets in your gateway due to this:

      https://forum.mysensors.org/topic/4462/gatewayw5100-unable-to-get-working-w-v2-0-0

      https://forum.mysensors.org/topic/4680/mysensors-2-0-ethernet-gateway-atmega-w5100-restart-all-time/6

      Regards,
      Michiel

      posted in Development
      Michiel van der Wulp
      Michiel van der Wulp
    • RE: 💬 Sensebender Micro

      @meddie : Sure, I can:

      The following is an extract from the code shown at https://www.mysensors.org/view/1/Sensebender-Micro, from the "loop()" function:

      #ifndef MY_OTA_FIRMWARE_FEATURE
        if ((measureCount == 5) && highfreq) 
        {
          clock_prescale_set(clock_div_8); // Switch to 1Mhz for the reminder of the sketch, save power.
          highfreq = false;
        } 
      #endif
      

      If you remove these lines, it will stay on 8MHz.
      (I did not test this but I am quite sure)

      posted in OpenHardware.io
      Michiel van der Wulp
      Michiel van der Wulp