Servo Motor Micro SG90 180 Degree Rotation

Servo Motor Micro SG90 (180 Degree Rotation) is an ultra-lightweight, compact, low-cost micro servo motor widely recognized as a standard actuator in hobbyist electronics and educational robotics. Featuring a lightweight plastic gear train and a tiny 9g form factor, it delivers smooth angular positioning from 0 to 180 degrees controlled via standard Pulse Width Modulation (PWM) signals. Its minimal weight, small footprint, and low operating power requirements make it the ideal choice for driving lightweight mechanical linkages, pan-tilt camera platforms, mini robotic arms, and interactive STEM learning projects.

Features

• Extremely lightweight 9g micro form factor suitable for weight-sensitive applications
• 180-degree angular motion controlled precisely using 50 Hz PWM signals
• Compatible with standard 5V logic levels provided by Arduino, ESP32, ESP8266, and Raspberry Pi
• Low operational power consumption, easily powered during light testing via USB or small battery packs
• Integrated 3-pin connector wire compatible with standard breadboards, DuPont jumper cables, and servo shields
• Smooth nylon gear mechanism providing low noise during rotation
• Complete horn assortment set included for driving various mechanical linkages, levers, and joints
• Plug-and-play operation supported by standard open-source servo libraries (Servo.h, ESP32Servo, etc.)

Applications

• Mini 2-DOF pan-tilt camera mounts and ultrasonic sensor scanning platforms
• Lightweight mini robotic arms, bipedal walking micro-bots, and gripper mechanisms
• Control surfaces (ailerons, elevators, rudders) for indoor RC airplanes and gliders
• Animated electronic models, automated smart trash cans, and secret door latching systems
• Microcontroller-based educational STEM projects, polytechnic diploma coursework, and university mechatronics labs

Important Notes:

• Current Handling: While a single SG90 can be temporarily powered by an Arduino's 5V pin for light idle testing, connecting multiple SG90 servos or placing a mechanical load on the shaft requires a dedicated external 5V power supply to prevent microcontroller brownout resets.
• Always maintain a common ground (GND) connection between the external power source and the microcontroller control board.
• Observe correct wiring pinout before powering up: Brown = Ground (GND), Red = VCC (+5V), Orange = PWM Signal Input.
• Do not manually force the output arm beyond its physical end-stops; forcing the plastic gear train manually can strip internal nylon gears.

Package includes

• 1 x Servo Motor Micro SG90 (180 Degree Rotation)
• 1 x Horn & Hardware Kit (3 plastic horn shapes and 3 mounting screws)