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27. Simple voltmeter using ADC

Build a Voltmeter using a microcontroller that measures the input voltage.

The input voltage range should cover the maximum achievable range supported by the microcontroller (e.g., 0 to 5 Volts for Arduino UNO).

You can use a potentiometer (1k-10k Ω) to vary the input voltage and print the detected voltage on the serial terminal (e.g., Putty, Arduino IDE)

Example using Arduino UNO:

 

 

 

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