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Black track pathfinder

Overview

The car will follow the black track and show an S-shaped walking route. The LM339 chip has the characteristics of high stability, strong resolution, sensitivity to voltage differences, and no crash. The use of patches can reduce costs and reduce size. LED1/2 plays a lighting role. White LEDs can be used. The black track will absorb light, causing the resistance of the two photoresistors to change, causing the input voltage of LM339 to change. The two potentiometers play a calibration role. If the car cannot track the track By adjusting two potentiometers, the car can track and move.

Design Files

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Update:2025-08-07 20:36:01

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