Hello, i´m trying to connect the obd2 with a raspberry pi by bluetooth to read the SoC and stop the charge at a certaint % of SoC.
When the car is "ready" work perfectly, the raspberry can read the canbus through obd2 and get the SoC.
But i see that when the car is off, the conection betwen the canbus and the bms is off.
Any idea of i can power on the canbus when the j1772 is conected and the car is charge?
Many thanks in advance.