Skill

ultrasonic-hcsr04

Use when wiring or coding an HC-SR04 (or HC-SR04P/RCWL-1601/US-100) ultrasonic distance sensor on Arduino, ESP32, Pico, or any 3.3V/5V MCU. Covers the 5V-echo-into-3.3V-pin trap, voltage divider values, ping timing limits, timeout handling that doesn't crash or block, temperature compensation, multi

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