Here is a useful circuit for Arduino lovers and experimenters. It is a simple digital voltmeter, which can safely measure input dc voltages in 0 to 30V range. The Arduino board can be powered from a ...

It only applies to certain microcontrollers, but he provides example Arduino code ... measure a system’s voltage is to connect one of your MCU’s ADC pins to a voltage divider made from a ...

The resistors in a potential divider ... voltage applied across the series combination of R1 and R2. This is the total voltage applied to the circuit. R1 and R2: These are the two resistors ...

Typically, a headphone is connected to the loudspeaker output of the final amplifier stages through a voltage divider circuit. However, this simple design has two distinct disadvantages. Firstly, the ...