Sofar ME3000SP RS485 TCP to MQTT

This is a script that can be used to read and write to the Sofar ME3000SP controller, connected through a RS485 TCP adaptor. (For example with a PUSR USR-TCP232-304)

Deployment

1. Using Docker compose

Copy the default.env file to override.venv and modify the values according to your desire in the override.env file.
Deploy with MQTT server:
- docker compose --profile mqtt up
Deployo without MQTT server (if you are running one you like to use for example):
- docker compose up

2. Running it as a service

Create a Python3 Virtual Environment: python3 -m venv venv
Activate the virtual environment: source venv/bin/activate
Install requirements: pip3 install -r requirements.txt
Run script first time: python3 sofar_poller/sofar_rs485_to_mqtt.py
Modify generated settings.ini file accordingly.
If wanted, create a service based on the systemd/system/sofar_rs485_tcp_to_mqtt.service file included.

3. ???

4. Profit!

Usage

1. Reading

Message will be pushed to configured MQTT broker at defined interval. This could be used for Home Assistant. Perhaps an example will be added later.

2. Commands

To put the Sofar ME3000SP in standby mode, send an MQTT message to te defined CMD topic appended with /charge in the configuration with a payload of true

Example using mosquitto_pub: mosquitto_pub -h localhost -m true -t sofarsolar/cmd/standby
To put the Sofar ME3000SP in auto mode, send an MQTT message to te defined CMD topic appended with /charge in the configuration with a payload of true

Example using mosquitto_pub: mosquitto_pub -h localhost -m true -t sofarsolar/cmd/auto
To put the Sofar ME3000SP in charging mode, send an MQTT message to te defined CMD topic appended with /charge in the configuration with a integer payload of the amount of watts to charge with.

Example using mosquitto_pub: mosquitto_pub -h localhost -m "1500" -t sofarsolar/cmd/charge
To put the Sofar ME3000SP in discharging mode, send an MQTT message to te defined CMD topic appended with /charge in the configuration with a integer payload of the amount of watts to discharge with.

Example using mosquitto_pub: mosquitto_pub -h localhost -m "1500" -t sofarsolar/cmd/discharge

phamels/sofar_rs485_tcp_to_mqtt