I use arduino and ADS1115 to measure voltage of battery and solar panel of PWM solar charger controller using 2 voltage dividers for both sources. To have a corrrect measurement, ADS1115 GND must be connected to GND for both sources (I think). The problem is when I turn on the switch of battery fi…

Measuring voltage and current from PWM solar controller

camsysca March 3, 2024, 1:17am 2

My best suggestion would be to provide us with a properly annotated schematic. Sorry, but that's the language of electronics.

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