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Description

The MG90S Micro Servo Motor (180° Position Control) is a compact and dependable analog RC servomotor built for projects that require accurate angle positioning rather than continuous spinning. It’s ideal for robot arms, steering systems, pan/tilt brackets, RC models, animatronics, and DIY mechanisms where repeatable motion matters.

This 180° version rotates to a commanded angle and holds position using internal feedback control. With standard RC PWM servo signals, you can easily control it using Arduino/ESP32 servo libraries and most RC receivers.

How 180° Position Control Works (PWM)

A positional servo interprets PWM pulses as a target angle:

Typical frequency: ~50 Hz
Pulse width range: ~1.0 ms to ~2.0 ms
Around 1.5 ms is commonly near the center position

Wiring (Standard 3-Wire Servo Cable)

Typical color mapping:

Brown / Black: GND
Red: VCC (4.8V–6.0V)
Orange / Yellow: PWM Signal

Power Notes (Recommended)

Servos can draw higher current during movement and under load. For best performance:

Use a separate regulated 5V supply when possible
Always share ground between the servo and controller
Avoid powering heavy loads directly from small onboard regulators

Key Benefits

180° positional control for accurate angle movement
Micro size for compact robotics and RC builds
PWM control compatible with Arduino, ESP32, and RC receivers
Plastic gear design keeps weight low for hobby and education use
Accessories included for quick mounting and setup

Typical Specifications (may vary slightly by batch)

Parameter	Typical Value
Model	MG90S Micro Servo (Analog)
Rotation Type	Position Control (Up to ~180°)
Operating Voltage	4.8V–6.0V DC
Control Signal	PWM (typical ~50 Hz, ~1.0–2.0 ms)
Connector	3-pin RC servo plug
Best For	Steering, robot arms, pan/tilt, linkages

What’s Included

1× MG90S micro servo motor
Multiple servo horns/arms
Mounting screws

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Specifications

Servo MG90S metal gear

Rotation 180° positional

Torque ~1.8kg·cm @ 4.8V

Supply Voltage 4.8-6 V

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// From Robotics