Automatic Gate Demo Kit

A simple Arduino Uno project that simulates an automatic gate using an ultrasonic sensor, servo motor, LEDs, and a buzzer.

How It Works

• Detects objects within 50 cm using an HC-SR04 sensor.
• Opens the gate (servo to 90°) when an object is detected.
• Closes the gate (servo to 0°) after 5 seconds of no detection.
• 🔴 Red LED = Gate closed
• 🔵 Blue LED + 🔊 Buzzer = Gate open

Components

• Arduino Uno
• Ultrasonic Sensor (HC-SR04)
• Servo Motor (SG90)
• Red & Blue LEDs
• Buzzer
• Breadboard + Jumper Wires