The FS5103B-FB is a specially modified version of FEETECH’s FS5103B standard-size analog servo that provides access to the feedback potentiometer through a fourth (green) wire, which makes it possible to directly measure the output angle. With this extra information, you can determine when the servo has reached its target position (or detect if something is interfering with its ability to get there). This feedback also enables more complex closed-loop control of the servo from your main controller.

Like the FS5103B, the FS5103B-FB works with standard RC servo pulses, providing a running angle of approximately 180° over a servo pulse range of 600 µs to 2400 µs. The feedback voltage varies linearly over this range by a couple of volts.

The servo signal, power, and ground are provided through a 3-wire servo cable that is terminated with a standard JR-style connector, which is Futaba-compatible. The feedback is accessible through a separate green wire that is terminated like our female premium jumper wires and works with standard 0.1″ male header pins. These cables are approximately 12″ (30 cm) long.

Specifications:

• Digital?: N
• Speed @ 6V: 0.16 sec/60°
• Stall torque @ 6V: 3.8 kg·cm
• Speed @ 4.8V: 0.18 sec/60°
• Stall torque @ 4.8V: 3 kg·cm
• Hardware included?: Y
• Lead length: 12 in

Documents:

• Datasheet

Warranty:

• Warranty will not apply if Product fails or is damaged after delivery to you due to accident, abuse or misuse.

Package Includes:

• 1 x Pololu 3441 FEETECH Standard Servo FS5103B-FB with Position Feedback