Our boards are designed to use a 4-6VDC power supply (5.5 mm OD, 2.1 mm ID, center positive plug). Our 4xAA battery pack uses extra thick wire (20ga) to better handle the high current draw of up to 6 small servos. This pack uses four standard AA cells. We recommend the use of Ni-MH rechargeable batteries because these are better for the planet, and provide a more consistent voltage as they discharge.
Alternatively, a 5VDC, 5A (5.5 mm OD, 2.1 mm ID, center positive plug) AC adapter can be used.
Continuous Rotation Servos
The Servo Tester is multi-purpose tool for working with servo motors. It has three modes selected by the mode switch:
Manual: This manually controls the servo position with the knob. The LEDs follow the position of the knob.
Center: The servo is set to its neutral position. The center LED flashes to indicate this mode.
Mini Servo Shield
Mini LED Shield