directserial-serialtx3e

Direct Serial emonTx V3 / emonTH

Using emoneESP format direct serial

by @owenduffy

Interfacer for serial output from emonTx V3 (firmware V2.4 and above)

emonTx firmware V2.4+ outputs serial CSV string pairs compatiable with emonESP:

MSG:value,name:value,name:value

e.g

MSG:12,ct1:100,ct2:300 ....

Messages must start with the MSG:number key:value pair. The message number does not need to increment but the interfacer looks for MSG as the identifier that the new string is a data string.

Default baudrate is 115200

Config example

Add the following to emonhub.conf in the [interfacers] section:

[interfacers]
### This interfacer manages the EmonTx3 ESP format serial
[[SerialTx3e]]
     Type = EmonHubTx3eInterfacer
      [[[init_settings]]]
           # Un-comment line below if using RS485 adapter
           #com_port = /dev/ttyRS485-0
           # default com port if using USB to UART adapter
           com_port= /dev/ttyUSB0
           com_baud = 115200
      [[[runtimesettings]]]
           #nodeoffset = 1
           # nodeoffet can be used for multiple devices. it will change the nodeID as seen by emonCMS Inputs.
           pubchannels = ToEmonCMS,

See blog post by @owenduffy detailing serial connection an emonTx V3 (running stock V2.4+ FW) with RS485 adapter.