SparkFun Servo Trigger Recommended Voltage: 5VDC Max Voltage: 5.5VDC Current Draw: 5 mA Easy Control with Potentiometers ISP Header pins Available for Reprogram Compatible with Analog Servos Three Control Settings A - sets the position the servo sits in while the switch is open B - sets the position the servo moves to when the switch is closed C - sets the time it takes to get from A to B and back