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  1. Home
  2. Troubleshooting
  3. How to change the RFM69 Modem configuration?

How to change the RFM69 Modem configuration?

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  • G Offline
    G Offline
    Gibber
    wrote on last edited by
    #1

    I would like to try a lower transmission rate on my RFM69 radios. At the moment I only have one gateway and one sensor.
    I tried uncommenting line 801 of Myconfig.h and changing it to #define MY_RFM69_MODEM_CONFIGURATION (RFM69_FSK_BR9_6_FD19_2)
    I then reloaded the code for the serial gateway to my gateway node and the code to my sensor node as well.
    After the change I was unable to get the sensor to connect. I got repeated TSM:FPAR:NO REPLY.
    Am I missing a step here? Is there any reason this would not change the bit rate as desired?
    As soon as I commented out line 810 and reloaded the code to both nodes connection was restored.

    ferroF 1 Reply Last reply
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    • G Gibber

      I would like to try a lower transmission rate on my RFM69 radios. At the moment I only have one gateway and one sensor.
      I tried uncommenting line 801 of Myconfig.h and changing it to #define MY_RFM69_MODEM_CONFIGURATION (RFM69_FSK_BR9_6_FD19_2)
      I then reloaded the code for the serial gateway to my gateway node and the code to my sensor node as well.
      After the change I was unable to get the sensor to connect. I got repeated TSM:FPAR:NO REPLY.
      Am I missing a step here? Is there any reason this would not change the bit rate as desired?
      As soon as I commented out line 810 and reloaded the code to both nodes connection was restored.

      ferroF Offline
      ferroF Offline
      ferro
      wrote on last edited by ferro
      #2

      Hi,

      need to be used without brackets (see this post) :

      #define MY_RFM69_MODEM_CONFIGURATION RFM69_FSK_BR9_6_FD19_2
      

      Do not modify MyConfig.h. Put it into the sketch for your node (somewhere before line: #include <MySensors.h>).

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      • G Offline
        G Offline
        Gibber
        wrote on last edited by
        #3

        Working great! Thanks very much!

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