Sometime you will want more control than just a button press in your CodeBug projects, this can be achieved with analogue inputs. Instead of the input sensing an on (high voltage around 3-5 volts) or off (low voltage around 0 volts), it senses any voltage in-between 0 and 3/5. This value can be generated using a variable resistor called a potentiometer.

	CodeBug
	Micro USB cable
	Computer
	Crocclips
	10k ohm potentiometer