Bezuidenhout Posted June 29, 2021 Share Posted June 29, 2021 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. Quote Link to comment Share on other sites More sharing options...
Bezuidenhout Posted June 30, 2021 Author Share Posted June 30, 2021 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. Quote Link to comment Share on other sites More sharing options...
Bezuidenhout Posted July 14, 2021 Author Share Posted July 14, 2021 (edited) 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. Edited July 14, 2021 by Bezuidenhout Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.