Emonpi - multiple serial-usb

Hardware emonPi
1

Can i get 2 (or more) inputs via a serial-usb connected to the emonPi?
Now i have one connected via the [RFM2Pi] in [intercaces] by changing the comport and baudrate.
I would like to connect 2nd arduino via serial.

2

Yes, you can use a USB serial device e.g. /dev/ttyUSB0 see emontx direct serial example for emonhub:

[interfacers]
### This interfacer manages the EmonTx3 ESP format serial
[[SerialTx3e]]
     Type = EmonHubTx3eInterfacer
      [[[init_settings]]]
           com_port= /dev/ttyUSB0
           com_baud = 115200
      [[[runtimesettings]]]
           pubchannels = ToEmonCMS,
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