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Arduino-based robot car that autonomously detects and avoids obstacles using an HC-SR04 ultrasonic sensor mounted on an SG90 servo for 180° scanning.
Specifications
| Microcontroller | Arduino Uno |
| Sensor | HC-SR04 Ultrasonic |
| Servo | SG90 (for scanning) |
| Motors | 2× TT Gear Motor |
| Motor Driver | L298N |
| Detection Range | 2 cm – 400 cm |
| Scan Angle | 180° |