SG90 Servo Motor – 9g Micro Servo for Robotics & Arduino
SG90 9g Micro Servo Motor – 180° Rotation, 1.2kg·cm Torque
The SG90 is a compact, lightweight servo motor weighing just 9 grams, designed for precise angular control in small-scale robotics and hobby electronics. It offers a rotation range of 0 to 180 degrees with a stall torque of 1.2 kg·cm at 4.8V, making it a go‑to actuator for Arduino and Raspberry Pi projects. Its reliable plastic gears and standard 3‑pin connector ensure easy integration with most microcontroller platforms.
Key Specifications
| Specification | Value |
|---|---|
| Operating Voltage | 4.8 – 6.0 V DC |
| Stall Torque (4.8V) | 1.2 kg·cm |
| Operating Speed (4.8V, no load) | 0.12 sec / 60° |
| Rotation Angle | 0 – 180° |
| Weight | 9 g |
| Dimensions (L×W×H) | 23.1 × 12.2 × 28.5 mm |
What You Can Build With This
- Miniature robotic arm with 3–4 servos for precise joint movement
- Pan‑tilt camera mount for object tracking using OpenCV
- Automatic pet feeder with timed dispensing lid
- Solar tracker that follows the sun for small photovoltaic panels
Compatibility
The SG90 works seamlessly with any microcontroller that supports PWM output, such as Arduino Uno, Nano, Raspberry Pi (with external power), ESP32, and STM32. Its logic signal is 5V‑tolerant, and the servo can be powered directly from a 5V rail if current draw is limited. For multiple servos, pair with a dedicated servo driver like PCA9685 or an external 5–6V supply.
Wiring Notes
Connect the brown wire to GND, red to 5V (or 4.8–6V external supply), and the orange/yellow signal wire to any PWM‑capable GPIO pin. Use a 100–470 µF decoupling capacitor across the power rails if you notice jitter. Never power more than two servos directly from an Arduino’s 5V regulator – use a separate battery or DC adapter.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3‑5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, the SG90 works directly with the Arduino Servo library. Just connect the signal wire to a PWM pin (e.g., D9) and upload a sweep sketch.
What is the torque at 6V?
At 6V input, the stall torque increases to approximately 1.8 kg·cm, providing a noticeable boost for heavier loads.
Can this servo rotate 360°?
Out of the box, the SG90 is limited to 180° by a mechanical stop. Continuous rotation requires internal modification (removing the potentiometer stop and disconnecting the feedback potentiometer).
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
What you can build with this
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items