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Cómo usar el sensor ultrasónico HC-SR04 con Arduino

Conectaste el módulo, cargaste un ejemplo copiado de un foro y el monitor serie solo muestra ceros, o peor, números que saltan de 12 a 340 centímetros sin que nada se mueva.

LBLucía BenítezNov 10, 2026Electrónica
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An HC-SR04 ultrasonic sensor module wired to an Arduino Uno on a breadboard, pointed at a small cardboard box on a workbench

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