AOICRIE 5pcs HC-SR04 Ultrasonic Sensor Distance Module for Nano Robot XBee ZigBee by ElecRight for Ultrasonic Proximity Sensors Motion Detectors (5PCS)
- Test mode :HC-SR04 ultrasonic sensor can send eight 40 kHz and detect whether there is any pulse signal back.If it back, a high level signal will be outputed by IO, and the duration of the signal is the time from sending ultrasonic to returning..
- HC-SR04 Ultrasonic Sensor Distance Module: using IO trigger for at least 10us high level signal..
- Quiescent current: less than 2mA, Test distance = ((Duration of high level)*(Sonic :340m/s))/2..
- The detection zone: 0.78~196 in/ (2cm~500cm).
- High precision: up to 0.12 in/(0.3 cm) Effectual angle: less than 15°.