The Servo Tester Module is a compact and easy-to-use tool designed to test, control, and calibrate servo motors and Electronic Speed Controllers (ESCs) without the need for a microcontroller. It generates precise PWM signals, allowing smooth servo positioning and reliable ESC throttle testing. This makes it an essential accessory for robotics, RC systems, and motion-control troubleshooting.
Core Module Specifications
• Module Type: Servo / ESC signal tester
• Signal Type: PWM (Pulse Width Modulation)
• Control Method: Rotary potentiometer (knob)
• Operating Modes: Manual, Neutral, Automatic (mode dependent)
Electrical & Interface
• Operating Voltage: 4.8 V – 6 V DC
• Power Input: External battery or BEC supply
• Output Connector: Standard 3-pin servo interface
• Signal Compatibility: Analog and digital servo motors
• ESC Support: Yes (RC ESC compatible)
Performance Characteristics
• Smooth and stable PWM signal generation
• Precise servo position control
• Reliable ESC throttle calibration
• Instant response with manual control
Physical Characteristics
• Module Type: Enclosed tester with control knob
• Display: LED indicators (variant dependent)
• Connectors: Servo-style headers
• Compact and lightweight design
Compatibility
• RC servo motors
• Brushless and brushed ESCs
• Robotics servo systems
• RC aircraft, cars, and boats
• DIY motion control projects
Key Advantages
• No microcontroller or code required
• Simple plug-and-play operation
• Ideal for testing and troubleshooting
• Portable and beginner-friendly tool
Technical Insights
• Generates standard 50 Hz servo PWM signal
• Knob adjusts pulse width for position / speed
• Useful for centering servos before installation
• Power supply must meet servo current demand
Applications
• Servo motor testing
• ESC throttle calibration
• Robotics and RC system setup
• Servo centering and alignment
• Workshop diagnostics and maintenance
Pro Tip
• Always power the tester from a supply that can handle servo current
• Disconnect load when first testing servos
• Use neutral mode when calibrating ESCs
• Avoid reversing polarity on servo connectors
Package Includes
• 1 × Servo Tester Module