A plastic-geared micro servo with an extra trick — a fourth wire brings out the internal potentiometer feedback signal, letting you read the servo's actual position via an analog input. This feedback capability enables motion recording, playback, and improved stability in robotics applications.

The servo uses standard hobby servo pulse widths and is compatible with any microcontroller that can generate servo PWM signals. The default 1–2ms pulse range may not deliver a full 180° of motion; try 0.75–2.25ms for extended range, but avoid going too far to prevent damage.

Key Features

• Analog Position Feedback – Fourth wire outputs the potentiometer wiper signal for position reading
• Plastic Gears – Lightweight plastic gear train for smooth, quiet operation
• Micro Size – Standard micro servo form factor
• Motion Recording – Read position data to record and play back servo movements
• Multiple Horns – Comes with a range of servo horns

Specifications

• Gear Type – Plastic
• Feedback – Analog (potentiometer wiper on 4th wire)
• Wiring – 4 wires (power, ground, signal, feedback)
• Default Pulse Width – 1–2ms (try 0.75–2.25ms for extended range)

Ideal For

• Robotics with position feedback and stability control
• Servo motion recording and playback
• Arduino and microcontroller projects
• Animatronics and interactive builds

Package Contents

• 1× Analog Feedback Micro Servo (plastic gear)
• Assorted servo horns

Resources

• Arduino Record & Play Example Sketch (GitHub)