Sensor Jarak HC-SR04 Ultrasonic Wave Detector

Deskripsi

This module has stable performance and accurate measurement distance. Module high-precision, blind (2cm) ultra-close, stable range is the success of this product to the market a strong basis! This module fully humility GH-311 anti-theft module.

Two main technical parameters:
1: Working voltage: DC5V
2: Quiescent current: less than 2mA
3: Level output: High 5V
4: Level output: Bottom 0V
5: Sensing angle: not more than 15 degrees
6: Detection range: 2cm-450cm
7: High precision: up to 0.3cm

Panel wiring, VCC, trig ‘s (control side), the echo (receiving end), out (empty feet), GND

Note: TRIP-pin internal pull-up 10K resistor, down TRIP microcontroller IO port pin, and then to a 10us pulse signal.

OUT pin for this module as the switch output pin when the anti-theft module, ranging modules do not use this foot!

Note: The module should be inserted Fortunately, the circuit board re-energized, and avoid the high malfunction, if they have re-energized before they solve.

This module can be provided ranging program: C51, PIC18F877 microcontroller Yoshitatsu three MCU test reference.

3 the module URF04 works:

(1) IO trigger ranging to at least 10us high signal;

(2) module automatically sends eight 40kHz square wave, automatically detect whether a signal return;

(3) a signal to return to a high IO output, high duration of the ultrasonic time from launch to return.

Test distance = (time high * speed of sound (340CM / S)) / 2;