SR04 Datasheet - Elec Freaks

SR04, Ultrasonic Ranging Module HC

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) T

SR04-ElecFreaks.pdf