The Servo Tester is a compact electronic tool designed to test and control RC servo motors without requiring a microcontroller. It allows users to check servo movement, adjust the shaft position, and verify servo operation using a rotary knob and built-in operating modes.

Features

• Easy testing of RC servo motors

• Rotary knob for manual position control

• Multiple operating modes: Manual, Neutral and Auto

• Supports testing of standard PWM-controlled servos

• Three-pin servo output connectors

• Simple plug-and-play operation

• Compact design with a protective blue housing

• Useful for robotics, RC models and DIY electronics projects

Specifications

Pin Configuration

Check the connector markings before connecting your servo.

Operating Modes

• Manual: Rotate the knob to adjust the servo position.

• Neutral: Moves the servo toward its center position, typically around 90°.

• Auto: Automatically sweeps the servo through a range of positions to test its movement.

Applications

• RC cars, boats and aircraft

• Robotics projects

• Servo motor testing and calibration

• Arduino and ESP32 project development

• RC model maintenance

• DIY automation projects

• Checking servo movement before installation

Advantages

• No microcontroller required for basic testing

• Quick testing of servo motors

• Convenient manual position adjustment

• Automatic movement testing

• Simple operation for beginners and hobbyists

• Compact and portable design

Package Includes

– 1 × Servo Tester Module

Note

Use a compatible power supply within the voltage range marked on the tester. The tester provides a control signal but may not supply enough current for high-torque servos. For larger servos, use a suitable external power source with a common ground.