<![CDATA[First node: nothing work]]>Hi everybody;

This is my first post, and my first attempt to build some mysensors gateway and temperature node.

First of all, this is what I use:

  • arduino nano
  • NRF24L01 with antenna
  • 1.4 library

I have successfully created the serial usb gateway. When I start it, I can see on the debug output that the controller is online and ready to receive some date.

Unfortunately, the sensor never works. I have the "feeling" he can't correctly initialize: nothing on the debug output. The "bad" seems to be : gw.begin(). I follow the source code and it seems he can't send the first broadcast message and it seems to "wait" indefinitely.
To give more information, I can successfully load and start the controller sketch on the second device: so it seems not broken. I can successfully read a temperature from a one wire device. But, even the first exemple from mysensors.org don't work. What is really wired too is I can upload a new sketch to this arduino: the serial ouput seems always "full": I can only upload it when the arduino start.

Do you have some idea please ?

]]>https://forum.mysensors.org/topic/1740/first-node-nothing-workRSS for NodeMon, 13 Apr 2026 20:20:16 GMTSun, 02 Aug 2015 16:18:15 GMT60<![CDATA[Reply to First node: nothing work on Wed, 05 Aug 2015 19:27:59 GMT]]>Here are the specifications from the NRF24 without antenna

http://www.nordicsemi.com/eng/Products/2.4GHz-RF/nRF24L01#Specification

]]>https://forum.mysensors.org/post/18308https://forum.mysensors.org/post/18308Wed, 05 Aug 2015 19:27:59 GMT<![CDATA[Reply to First node: nothing work on Wed, 05 Aug 2015 11:08:28 GMT]]>
  • The NRF24 antenna version is:
    -- working current in transmit mode is 115mA
    -- working current in receiver mode is 45mA

    • For the NRF24 non antenna version i did'nt find any details of power consum. (only 1uA on Power down mode)

    Arduino Nano:

    • The total current from all the IO pins together is 200 mA max.
    • The 3.3V output is capable of supplying 150 mA.
      -- Note - Any power drawn from the 3.3V rail has to go through the 5V rail. Therefore, if you have a 100 mA device on the 3.3V output, you need to also count it against the 5V total current.

    The 5V output is much powerful on the Arduino nano. U can try to use a 5V to 3.3V stepdown regulator like AMS1117

    ]]>    https://forum.mysensors.org/post/18274https://forum.mysensors.org/post/18274Wed, 05 Aug 2015 11:08:28 GMT    <![CDATA[Reply to First node: nothing work on Tue, 04 Aug 2015 07:56:14 GMT]]>Same thing append if I try the serial sketch on the working "serial-gateway". If I try the gateway sktech on the "bad" arduino, the gateway seems to start.

    The NRF24 is connected to the 3.3V out from the Arduino nano. I will try to use and external power supply; or maybe, I will buy the NRF24 without antena. Thanks for that suggestion.

    ]]>    https://forum.mysensors.org/post/18226https://forum.mysensors.org/post/18226Tue, 04 Aug 2015 07:56:14 GMT    <![CDATA[Reply to First node: nothing work on Tue, 04 Aug 2015 07:16:22 GMT]]>Is the NRF24 connected to externel 3.3V power or to the 3.3V from the Nano? The NRF24 antenna version has a higher power consumption as the version without antenna.

    ]]>    https://forum.mysensors.org/post/18224https://forum.mysensors.org/post/18224Tue, 04 Aug 2015 07:16:22 GMT    <![CDATA[Reply to First node: nothing work on Mon, 03 Aug 2015 18:30:29 GMT]]>Looks like it is dying in the middle of serial log output.

    What happens if you try the same sketch on the working "serial-gateway"-Arduino you were talking about in the first post? You might have some faulty hardware there..

    ]]>    https://forum.mysensors.org/post/18194https://forum.mysensors.org/post/18194Mon, 03 Aug 2015 18:30:29 GMT    <![CDATA[Reply to First node: nothing work on Mon, 03 Aug 2015 05:43:54 GMT]]>I have already clear the EEPROM many times. No changes.

    I have activate the DEBUG mode on the RF24_config.h file:

      #define FAILURE_HANDLING
  #define SERIAL_DEBUG

    I can now see some debug informations:

    send: 255-255-255-255 s=255,c=3,

    And nothing more. Some kind of "failed broadcast" ?
    Maybe, the gateway seems to never respond to this first broadcast; the gateway never receive it anyway.

    ]]>    https://forum.mysensors.org/post/18154https://forum.mysensors.org/post/18154Mon, 03 Aug 2015 05:43:54 GMT    <![CDATA[Reply to First node: nothing work on Mon, 03 Aug 2015 04:58:43 GMT]]>Try to clear the EEPROM first, then re-upload your sketch.

    ]]>    https://forum.mysensors.org/post/18151https://forum.mysensors.org/post/18151Mon, 03 Aug 2015 04:58:43 GMT    <![CDATA[Reply to First node: nothing work on Mon, 03 Aug 2015 04:20:48 GMT]]>No, nothing.

    ]]>    https://forum.mysensors.org/post/18148https://forum.mysensors.org/post/18148Mon, 03 Aug 2015 04:20:48 GMT    <![CDATA[Reply to First node: nothing work on Mon, 03 Aug 2015 01:10:03 GMT]]>Do you get any output on serial monitor on node side?

    ]]>    https://forum.mysensors.org/post/18142https://forum.mysensors.org/post/18142Mon, 03 Aug 2015 01:10:03 GMT    <![CDATA[Reply to First node: nothing work on Sun, 02 Aug 2015 20:27:58 GMT]]>I already try that without success.

    Using same cable with same arduino works like a charm for the gateway.

    ]]>    https://forum.mysensors.org/post/18131https://forum.mysensors.org/post/18131Sun, 02 Aug 2015 20:27:58 GMT    <![CDATA[Reply to First node: nothing work on Sun, 02 Aug 2015 18:03:07 GMT]]>Weird, try switching power supply/usb cable. You should get some output even if radio init fails.

    ]]>    https://forum.mysensors.org/post/18126https://forum.mysensors.org/post/18126Sun, 02 Aug 2015 18:03:07 GMT    <![CDATA[Reply to First node: nothing work on Sun, 02 Aug 2015 17:43:09 GMT]]>115200

    It seems to work nicely using gateway sketchup with correctly debug information...

    ]]>    https://forum.mysensors.org/post/18124https://forum.mysensors.org/post/18124Sun, 02 Aug 2015 17:43:09 GMT    <![CDATA[Reply to First node: nothing work on Sun, 02 Aug 2015 17:32:58 GMT]]>What baudrate did you set?

    http://www.mysensors.org/build/debug

    ]]>    https://forum.mysensors.org/post/18122https://forum.mysensors.org/post/18122Sun, 02 Aug 2015 17:32:58 GMT    <![CDATA[Reply to First node: nothing work on Sun, 02 Aug 2015 17:30:21 GMT]]>Nothing....

    ]]>    https://forum.mysensors.org/post/18120https://forum.mysensors.org/post/18120Sun, 02 Aug 2015 17:30:21 GMT    <![CDATA[Reply to First node: nothing work on Sun, 02 Aug 2015 17:14:57 GMT]]>What does the debug output say in the Serial Monitor of the sensor?

    ]]>    https://forum.mysensors.org/post/18116https://forum.mysensors.org/post/18116Sun, 02 Aug 2015 17:14:57 GMT