This is a simple arduino project for a soil moisture ... s value is to try different values or use a potentiometer. Insert the probes into the soil that has the desired moisture when to light up the ...

The circuit is simply a voltage regulator with variable voltage output. The brightness of the LEDs are dependent on the output voltage. Since the voltage regulator is variable, the brightness of the ...

With a little help from an Arduino mega ... The rest of the circuit is straightforward. It appears he uses a potentiometer for a rough regulation of the current going to the coils, doing the ...

[Christian] wrote in to tell us about his third-generation Arduino MIDI sequencer (translated ... components seen above include the slider and potentiometer band, as well as the repository ...