Adafruit
Analog Feedback Micro Servo - Metal Gear
A metal-geared micro servo with an extra trick — a fourth wire brings out the internal potentiometer feedback signal, letting you read the servo's actual pos...
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A metal-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
- Metal Gears – Durable metal gear train for reliable, long-lasting 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 – Metal
- 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 (metal gear)
- Assorted servo horns
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- potentiometer
- A variable resistor usually turned with a knob or shaft to create an adjustable electrical signal. It is often used for inputs such as volume, brightness or position, so it helps beginners learn how a microcontroller reads changing values.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- servo
- A servo is a motor with built-in position control, usually told to move to a specific angle by a control signal. It matters when you need repeatable movement, such as steering, arms, flaps, or linkages, rather than continuous spinning.
Find this product in
Brands
Robotics & Motion
Related Tutorials
Free guides on learn.littlebird.com.au
