Hi there, I just tried to measure an analog voltage with my arduino. I followed this tutorial https://www.arduino.cc/en/Tutorial/ReadAnalogVoltage but instead of the potentiometer my curcuits consists of a 150 ohm resistor and an LED. The voltage drop across the LED is approx. 2V. The measurment…

Different measurment results with arduino and multimeter

123mike October 28, 2016, 9:33am 9

This site really helped me to measure accurate voltage with an arduino:Measuring accurate voltage with an Arduino – AutoTT

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