Ultrasonic sensors and motor operation

#define SENSOR_TR 6 #define SENSOR_EC 7 //변수 선언 void Init(); float Read_Distance(); int DEvent(); //pinMode 설정 void Init() { pinMode(SENSOR_TR, OUTPUT); pinMode(SENSOR_EC, INPUT); } //거리읽기 float Read_Distance() { digitalWrite(SENSOR_TR, LOW); delayMicroseconds(2); digitalWrite(SENSOR_TR, HIGH); delayMicroseconds(10); digitalWrite(SENSOR_TR, LOW); float fDistance = pulseIn(SENSOR_EC, HIGH) / 29.0..

원문링크 : Ultrasonic sensors and motor operation