MartinFowler

DIY simple obstacle avoidance car (with schematic and source code)

Overview

This colleague is very capable in DIY. After seeing this car, I felt that he was so talented that I must share it with everyone. With the consent of my colleagues, I will share the circuit schematic and source code of the car here. This simple obstacle avoidance car uses ultrasonic waves to measure distance, and determines the car's driving direction based on the measured distance. Obstacle avoidance has been simplified. As long as there is an obstacle, turn right. In order to save costs, only one ultrasonic module is used, so it can only avoid obstacles directly in front of the object. The car adopts a three-wheel structure, and the speed difference controls the direction. The finished module used in the ultrasonic module, the microcontroller uses a minimum system board, and there is an L293D motor driver module on the bottom board.

Design Files

DIY simple obstacle avoidance car (with schematic and source code).zip

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Update:2025-06-24 15:48:36

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