Car / Caravan Battery Monitor

Configuration
1

Hi all

Is there any integration with HA (running on a Pi) to monitor a car / caravan (12V) battery? I see Bluetooth battery monitors that you can use on a phone app, but not seen anything to connect the same Bluetooth monitor into HA to monitor.

Thanks

2

DIY?

Esphome supports the INA219. (Available on ebay or Aliexpress a lot cheaper).

Up to 26V at 3.2A (32A if you replace the 0.1R resistor with a 0.01R precision resistor).

You’ll also need a 12V to 5V DC-DC converter to power the ESP board and INA219. Ebay or Aliexpress again. Or use a 12V cigarette socket to USB power supply.

I’m planning on using two of these to monitor 12V and 5V Meanwell power supplies that power a lot of my sensors and devices.

1 Like
3

Thanks

Looking at bluetooth if poss as I have all the kit.

I see bluetooth can be used with HA but not sure how to extract the data from a bluetooth device to use as a sensor in HA

4

Hello

any progress in with the Car / Caravan Monitoring?