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Arduino UNO + SG90 Servo Motor Control | Full Guide (Wiring + Code + Demo + Tips)

Welcome to another exciting Arduino project! In this video, we explore how to control an SG90 micro servo motor using an Arduino Uno board. This step-by-step guide is designed for beginners and hobbyists who want to dive into electronics, robotics, and IoT projects with clear explanations and hands-on demonstrations.

Project Overview

The SG90 micro servo is one of the most popular and affordable servo motors for Arduino enthusiasts. It can rotate up to 180 degrees, making it ideal for robotics, RC models, smart locks, and DIY automation. In this tutorial, I’ll show you how to:

Wire the servo motor correctly to Arduino Uno.

Upload and run simple control code.

Create smooth sweeping motion for realistic movement.

Troubleshoot common issues and upgrade the project.

What You’ll Learn in This Video

Parts Needed: Arduino UNO, SG90 Servo Motor, Breadboard, Jumper Wires, USB Cable.

Wiring Guide:

Brown Wire → GND

Red Wire → 5V

Orange Wire → Digital Pin 9

Coding Basics: Simple sketch to move servo to 0°, 90°, and 180°.

Advanced Code: Smooth servo sweeping for more natural motion.

Troubleshooting: Fix jitter, incorrect angles, or upload errors.

Upgrades: Control servo using a potentiometer, sensors, or Bluetooth.

GitHub Project Code

Get the Arduino code here:

https://github.com/Istiyaknoor12/IOT-...
code-./blob/main/Arduino%20and%20Servo%20-%20Demo%20code.cpp



Why This Project Is Great for Beginners

This is one of the simplest yet most useful Arduino projects. It teaches you how to:

Power and control motors safely.

Write and upload basic Arduino sketches.

Understand PWM (Pulse Width Modulation) control.

Build a foundation for robotics and IoT projects.

Troubleshooting Quick Guide
Issue Solution
Servo not moving Check wiring, board, and code upload.
Servo twitching Use external 5V supply and connect GNDs.
Wrong angle Reattach horn at correct zero position.
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Hashtags for Reach

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