SG90 Micro Servo Motor

Small positional servo for locks, flaps and simple mechanisms.

Servo MotorRM5-RM15Beginner

Arduino ✓ESP32 ✓Raspberry Pi ✓

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SG90 Micro Servo Motor electronics module illustration

AI Ready Overview

Quick Summary

SG90 Servo is a servo motor commonly used in FYP and embedded projects. It is best for small door lock and feeder mechanism, with wiring and testing planned around Arduino, ESP32, Raspberry Pi.

Difficulty

Beginner

Time Required

1-3 days for basic wiring and sample code; 1 week if used inside a complete FYP prototype

Cost

RM5-RM15 module range in Malaysia; full project cost depends on scope.

Components

SG90 Servo, Arduino, ESP32, Raspberry Pi

Overview

What is SG90 Servo?

SG90 is a small hobby servo used for angular movement in doors, feeders, solar trackers and small robotic mechanisms.

Engineering Reference

Quick Specs

Operating Voltage	5V
Interface	PWM
Difficulty	Beginner
Typical Malaysia Price	RM5-RM15
Best For	Small door lock, Feeder mechanism

Real Usage Notes

Suitable / Not Suitable

Suitable for

✓ Small door lock
✓ Feeder mechanism
✓ Solar tracker

Not suitable for

✕ Heavy loads
✕ Continuous rotation without special servo
✕ Direct power from weak GPIO

Build Planning

Difficulty

SG90 Servo is rated Beginner. Plan around 1-3 days for basic wiring and sample code; 1 week if used inside a complete fyp prototypedepending on wiring, libraries, calibration, dashboard/app integration and testing evidence.

Build Planning

Time Required

1-3 days for basic wiring and sample code; 1 week if used inside a complete FYP prototype

Malaysia Price Guidance

Cost

Typical module price range: RM5-RM15. This is component guidance only; a complete FYP cost depends on controller, sensors, casing, display, app/dashboard, documentation and timeline.

Connections

Connection overview

Module revisions can use different connector names and electrical limits. Treat this as a planning overview and verify the exact board marking, manufacturer datasheet and seller documentation before wiring.

Power

Use only a supply supported by the exact board or module variant. Common listings for this part mention 5V.

Ground

Connect a common ground between the controller, module and any external supply.

Primary interface

Plan for PWM; confirm the exact terminal names in the manufacturer documentation.

Variant-specific connections

Connector names and optional pins can differ between breakout-board revisions.

Platform Notes

Wiring Guides

SG90 Servo with Arduino / ESP32

This is a planning overview, not a board-specific pin map. Confirm the exact module revision, supply limits and PWM terminals in its datasheet before wiring. Use suitable level shifting when logic voltages differ.