i need some way of the arduino sensing that the car is running
Do a websearch for 'split-charge relay'.
They energise at about 13.8V, ie, when the vehicle's alternator is running and I think some models have a built-in delay of 5 or so seconds.
i need some way of the arduino sensing that the car is running
Do a websearch for 'split-charge relay'.
They energise at about 13.8V, ie, when the vehicle's alternator is running and I think some models have a built-in delay of 5 or so seconds.