Multiple emonTX Serial connections

I work on the premise that you have 3 USB TTL connectors.

Are these recent purchases?

Simply copy the settings, change the interfacer name, com_port and node offset. I use a nodename as well. This should work (never tried it though).

[[SerialTx0]]
     Type = EmonHubTx3eInterfacer
      [[[init_settings]]]
           com_port= /dev/ttyUSB0
           com_baud = 115200
      [[[runtimesettings]]]
           pubchannels = ToEmonCMS,

           nodeoffset = 0
           nodename = Serial_0

[[SerialTx1]]
     Type = EmonHubTx3eInterfacer
      [[[init_settings]]]
           com_port= /dev/ttyUSB1
           com_baud = 115200
      [[[runtimesettings]]]
           pubchannels = ToEmonCMS,

           nodeoffset = 1
           nodename = Serial_1

I think the nodename will only work if you are sending via MQTT. There are some changes proposed for the MQTT interfacer (which I am running), but I think this will work regardless.

If you are sending via the HTTP interfacer, you will need a different ‘nodeid’ setting I think.