Arduino Uno Automatic Barrier Gate Kit: Learn Motion Control & State Logic

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Step into the world of automated access control with this barrier gate kit. When a person approaches, the PIR sensor triggers the servo arm to lift, holds it for 5 seconds, then smoothly lowers it — just like a real parking entry system. Red and green LEDs give instant visual feedback, making this a mini replica of the gates you see at toll plazas, school entrances, and residential complexes.

What You'll Build

You'll assemble and program an intelligent barrier gate that responds to motion. Once the HC-SR501 PIR sensor detects movement, the Arduino Uno commands the SG90 servo to rotate 90°, raising the barrier arm and lighting a green "go" LED. After a 5-second pause, the arm returns to the closed position and a red LED signals "stop." It’s a complete state machine project that puts together motion sensing, actuator control, and indicator lights on a breadboard.

What You'll Learn

• Servo motor control using Arduino’s Servo library
• Interfacing a PIR motion sensor and reading digital signals
• Implementing timed delays and state transitions in code
• Building an LED indicator system with current‑limiting resistors

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for curious young minds aged 8–15, this kit is ideal for CBSE school projects, ATL tinkering sessions, and early STEM exploration. It’s also a quick hands-on activity for B.Tech beginners in ECE, EEE, or Mechatronics who want to see servo‑PIR integration in action. Smart India Hackathon participants will find it a perfect building block for access control prototypes.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.