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How to Use a Hobby Servo

A servo is an electronic device that transfers electronic impulses into a mechanical rotation. These small rectangular devices are normally employed by radio-controlled (RC) vehicles to either steer the front wheels or to apply throttle to the nitro engine.

Things You'll Need

Receiver
Transmitter
Battery pack
Servo

Instructions

- 1
  Connect the servo arm (which is the cylindrical plastic device protruding from the servo case) to the mechanical system of the vehicle. Snap the connector onto the arm, then mount the servo to the vehicle's chassis with the required mounting screws (included with your vehicle's kit).
- 2
  Plug the servo into the first channel of your receiver. This is the channel used for the steering. It will be labeled CH1. Plug the battery pack into the receiver (if you have a nitro car) or into the electronic speed control (ESC) if you have an electric vehicle.
- 3
  Turn on both the transmitter and the receiver, then rotate the steering wheel on the transmitter to control the function of the servo.

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