I’m working on a project where we have an E-Flite 3S 11.1V 2200mAH battery to trigger a valve via a relay controlled by a Thing Plus. The Thing has its own 3.7V LiPo battery. Since the 3S has the plug for the balance charger would this also be a good way for us to monitor the voltage of that battery?
I have read about how to use resistors to make a voltage divider. What would be ideal would be to use a Qwiic breakout board with the 4 pin 3S battery connector on it. I’ve been unable to find such a thing. Does anyone know of one?
Thanks.