[PSUBS-MAILIST] ESP32 / BMS comms over bluetooth

[Jon Wallace via Personal_Submersibles]

Attached is a photo of my battery condition sensor which polls my battery BMS and returns voltage, amps, and state of charge (SOC).  It is an ESP32 that talks to the BMS over bluetooth, and then forwards that data to my SEM master hub over TTL serial.  Previously I was reading voltage via an ADC and trying to associate that voltage with an estimate of battery SOC.  While the analog method can be used for very coarse estimates of battery SOC, it is simply no match for the detailed and accurate information provided by the BMS.
Jon
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