Overview — Compact SG90 Servo Motor for Arduino & RoboticsThe SG90 Servo Motor is a compact, lightweight and reliable hobby servo that delivers precise 180° rotation. Commonly called the SG90 servo, it’s an ideal actuator for Arduino, Raspberry Pi and other microcontroller projects where space, weight and cost matter.Why choose the SG90 Servo Motor?Compact size: Small footprint (23 x 12.2 x 29 mm) and only 9 g — fits tight assemblies and micro-robots.Accurate control: Smooth movement with small step resolution for precise positioning of linkages, camera pans, and control surfaces.Easy PWM control: Works directly with Arduino, Raspberry Pi (with appropriate PWM driver or library) and other boards using standard PWM signals.Wide compatibility: Operates at 4.8–6V so it runs from common battery packs, USB power (with regulator) or wall adapters.Cost effective: Low price makes it perfect for classroom kits, prototypes and mass deployment in hobby projects.Key Features & BenefitsRotation: 180° — suitable for steering, pan/tilt and simple robotic joints.Torque: 1.8 kg·cm @ 4.8V; 2.2 kg·cm @ 6V — enough for small linkages and lightweight loads.Speed: 0.12 s/60° @ 4.8V; 0.10 s/60° @ 6V — responsive for typical hobby tasks.Mounting: Standard mounting holes and included horn options for quick installation.Connections: 3-wire lead (signal, Vcc, GND) with standard servo connector for easy hookup.Technical SpecificationsModel: SG90Rotation: 180°Voltage: 4.8V – 6VTorque: 1.8 kg·cm (4.8V), 2.2 kg·cm (6V)Speed: 0.12 s/60° (4.8V), 0.10 s/60° (6V)Size: 23 x 12.2 x 29 mmWeight: 9 gApplications & Project IdeasThe SG90 servo motor is versatile and widely used across many DIY and educational applications:Robots and robotic arms — joint actuation and simple grippersRC vehicles — steering mechanisms for small cars, boats, and planesCamera mounts and pan/tilt heads — smooth, repeatable camera movementHome automation — small valve or latch actuatorsSchool projects and prototypes — low-cost actuator for experimentsQuick Setup & Wiring TipsConnect power (4.8–6V) to Vcc and GND. Use a separate power supply for multiple servos to avoid voltage drops.Connect the servo signal wire to a PWM-capable GPIO pin on your board (Arduino servo library or PWM driver recommended).Always test endpoints with your code before attaching linkages to avoid mechanical stress.For Raspberry Pi, use a PWM controller (e.g., PCA9685) or software PWM library to ensure stable control.Care & Best PracticesAvoid stalling the servo under heavy loads — torque specs are for small/light applications.Use appropriate decoupling capacitors and common-ground wiring when combining microcontrollers and external power supplies.Store indoors or in a dry place; while sturdy, the SG90 is intended for hobby use rather than heavy industrial duty.What’s in the Box1 × SG90 Servo Motor (180°)Assorted servo horns and mounting screwsNote: Product images are for reference only. Actual product appearance may vary slightly. Categories: Boards, Modules and Accessories, Motors, Drivers and Wheels Tags: 180 Degree Rotation, Compact Servo Motor, Motion Control, Precision Control, PWM Control, RC Vehicles, Servo Motor SG90 College Road Electronics4.85 (317 Reviews)
