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

zoomx March 21, 2019, 10:59am 9

Take care that is not always exactly 1.1V, you should measure it.

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