DIY Arduino Radar System (Rafale Hunter)

In this project, I built an Arduino-based radar system 🛠️ using an ultrasonic sensor 🔊 and servo motor ⚙️.

It scans the surroundings, detects objects, and displays them in real-time just like a mini radar 🎯.

Great project for learning Arduino, robotics & sensors!

1. Arduino Uno R3
2. ️ Breadboard
3. ⚙️ SG90 Servo Motor
4. HC-SR04 Ultrasonic Sensor + mounting bracket
5. Jumper Wires (Male–Male, Male–Female)
6. Laptop with Arduino IDE
7. USB Cable for Arduino
8. (Optional) Cardboard / 3D printed stand
9. 
   

Mount the ultrasonic sensor 📡 on top of the servo motor ⚙️ using the bracket.

1. Make sure the sensor faces forward 👀
2. Secure it with tape, glue, or screws 🔩

📌 Wire everything like this:

🛠️ Servo Motor

1. 🔴 Red → 5V
2. ⚫ Black → GND
3. 🟡 Yellow → Pin 12

📡 Ultrasonic Sensor (HC-SR04 Sonar)

1. 🔴 VCC → 5V
2. ⚫ GND → GND
3. 🟢 Trig → Pin 10
4. 🔵 Echo → Pin 11

⚡ Upload to your Arduino Uno and you’re good to go!

1. Go to 👉 https://processing.org/download
2. Download and install Processing (just like Arduino IDE).
3. Create a new sketch in Processing.
4. Copy-paste the radar GUI code below.

Wrap it up by saying what you learned, and invite readers to try it.🏁