This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...

If your board has no printed labels, check out its pinout diagram documentation (found on the board's Arduino Store page ... is using an analog input like a potentiometer. In this case, the ...

Motorized linear potentiometers are a rare ... is controlled by an Arduino clone and a small motor driver. That’s just the hardware; the real trick here is the software. So far, [Jack] has ...

Potentiometers are variable resistors ... and the other servo’s signal wire directly to Arduino pin 10, as shown in the circuit diagram in Figure 10-4. 3. Connect the GND from the joystick ...