Bezuidenhout

Just got my first version working getting the SOC and some other information from a Freedom Won Lite battery on it's CAN bus.🥳 The hardware units are an ESP8266 and a MCP2515 CAN controller.

I've read somewhere that the battery uses the OrionBMS, however using their document and polling for the data does not result in anything. https://www.orionbms.com/general/retrieving-data-obd2-canbus/ Unfortunately it does not respond on their sample request.

I am looking for information on how to query a Freedom Lite battery State-of-Charge and other data. My ultimate goal is to publish data from batteries and inverters via MQTT so that other devices can be switched on and off dependant on their priority and available power. The current setup is a MCP2515 and NodeMCU.