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evDash
FirmwareRead battery data on a separate dashboard
evDash runs on a small M5Stack display and reads battery charge, cell voltages, temperatures and charging data through an OBD-II adapter. It can save logs to an SD card and send readings to MQTT, a messaging system used by home automation tools.
You need a supported M5Stack board and an adapter plugged into the car’s diagnostic port; the Bluetooth route needs no wiring changes or connected-services plan. Remote history uploads to the maintainer’s server are enabled by default, so turn off Contribute data to keep that history local.
- Check your EV battery's health
- Keep your trip and charging history
- Keep reading data after the trial
- Charging graphs
- SD card logs
- Optional ABRP and MQTT uploads
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