I followed this tutorial but i have no clue why it's not working Measuring Voltage with Arduino Measure external d.c. voltage using an Arduino board. The voltage range measured is increased using a voltage divider resistor network. The measurement results are displayed in the Arduino se…

Voltage Divider for measuring more than 5V

system April 21, 2014, 1:08pm 8

When you say random values, what do you mean?

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