Schlagwort-Archive: english

Arduino measures a capacitor – basics, circuit and the program

The arduino can measure a capacitor with only two resistors in a range from 10nF to 2000 uF. The theory, the simple circuit on a bread board and the Arduino program explained.


The Arduino measures its own USB Voltage / VCC

The Arduino can measure its own processor voltage VCC. With a long USB cable this voltage can drop to e.g. 4,5V. That is important if you want to make a simple measurement with the AD converters on board.