I have made myself an Car battery monitoring circuit with Wemos D1 Mini and i have used 1x 1M resistor and 1x 220K resistor in series before the A0 pin. The voltage as showing is correct, but it fluctuates. The readings on the picture have an one second delay. [fluctuating] Here is my code: int…

Fluctuating voltage value in print console

Danois90 September 12, 2021, 11:44am 18

Sorry, try to replace "int voltPin = A0;" with "#define voltPin A0".

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