Powermeter 2 MQTT

This piece of code intend to send the powermeter data trough mqtt.

Code

HOWTO Run

$ mkdir /srv/powermeter
$ docker run --device=/dev/serial/by-ipd/***name_of_your_device***:/dev/ttyUSB0 -v /srv/powermeter:/powermeter laurentddd/powermeter2mqtt:latest

Or with docker compose:

Into your docker-compose.yml file, put :

version: '3'
services:
  powermeter:
    container_name: powermeter2mqtt
    image: laurentddd/powermeter2mqtt:latest
    restart: unless-stopped
    environment:
      - TZ=Europe/Brussels
    volumes:
      - /srv/powermeter:/powermeter
    devices:
      - /dev/serial/by-id/usb-1a86_USB2.0-Serial-if00-port0:/dev/ttyUSB0

Then run

$ docker-compose up -d

Configuration file

[DEFAULT]
UsbDevice = /dev/ttyUSB0 # path to the rs485 usb device
LogLevel  = WARNING      # log level (info will dump the collected data into the logfile)

[MQTT]
Server = 127.0.0.1          # MQTT Server address
Port   = 1883               # MQTT Port
User   = mqtt_username      # MQTT Username
Pass   = mqtt_password      # MQTT Password
Topic  = path/to/mqtt/topic # Path under wich the data is published (json data)

Basic schematic

Collect the power data trough Modbus

graph LR
A[Powermeter - MODBUS] -- RS485 --> C(USB device)
C -- tty USB --> D(powermeter2mqtt)

Loading