Hello, I am doing an Arduino project using Arduino Mega and a 5V cellphone powerbank. I need to make the Arduino measure its Vin voltage in order to print the powerbank's battery percentage. How can I do this? How should the circuit and code be? I have read about voltage dividers but I don't know wh…

Make Arduino Measure Its Own Voltage From Vin

wvmarle March 20, 2019, 5:09pm 8

Isn't it great that Atmel has thought of that and provides us with the fixed 1.1V reference?

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