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| HC-SR04 ELECFreaks - Ultrasonic Ranging Module Tech Support: services@elecfreaks.com Ultrasonic Ranging Module HC - SR04 Product features: Ultrasonic ranging module HC - SR04 provides 2cm - 400cm non-contact measurement function, the ranging accuracy can reach to 3mm. The modules includes ultrasonic transmitters, receiver and control circuit. The basic principle of work: (1) Using IO trigger for at least 10us high level signal, (2) The Modul |
| HC-SR04 ELECFreaks - Ultrasonic User Guide HC-SR04 User Guide Part 1 Ultrasonic Introduction 1. 1 Ultrasonic Definition The human ear can hear sound frequency around 20HZ ~ 20KHZ, and ultrasonic is the sound wave beyond the human ability of 20KHZ . 1.2 Ultrasonic distance measurement principle Ultrasonic transmitter emitted an ultrasonic wave in one direction, and started timing when it launched. Ultrasonic spread in the air, and would ret |
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Related Part Number
HCPL7840 | HC4053 |HC4053 | HC-05 |
HCS300 | HCPL-5231 |