// Note: Pin 12 is NOT a PWM pin on standard AVR (Uno/Nano). // If using an Uno/Nano, move this to a PWM-capable pin (3, 5, 6, 9, 10, 11).
An ESP32 firmware that measures distance with an ultrasonic sensor and displays it on a WS2812 LED strip — designed as a garage parking aid and as a learning project for embedded development with ...
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