micro:bit - 초음파 거리센서(HC-SR04)

출처 : Steve136/microbit-ultrasonic: Example usage of a HC-SR04 Ultrasonic Sensor and the BBC Micro:Bit.
HCSR04 - Ultrasound Ranging Sensor module | Mbed

micro:bit - 초음파 거리센서(HC-SR04)

 

소스

#include "MicroBit.h"
#include "hcsr04.h"

MicroBit uBit;
HCSR04 usensor(P0_3, P0_2); // TRIGGER, ECHO
unsigned int dist;

int main() {
	uBit.init();
	uBit.display.scroll("init", 70);
	
	while(1) {
		usensor.start();
		wait_ms(500); 
		dist = usensor.get_dist_cm();
		
		char buf[100];
		sprintf (buf, "d:%d", dist);
		uBit.display.scroll(buf, 70);
		wait(1.0); // 1 sec  
	}
}