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Using the HC-SR04 Ultrasonic Distance Sensor with Arduino
Using the HC-SR04 Ultrasonic Distance Sensor with Arduino
Ultarsonic Sensor code
Ultarsonic Sensor code
int const trigPin= A1;int const echoPin= A0;int Duration;int Distance;
void setup() { Serial.begin(9600); pinMode(trigPin,OUTPUT); pinMode(echoPin,INPUT);}
void loop() { digitalWrite(trigPin,LOW); delayMicroseconds(2); digitalWrite(trigPin,HIGH); //發射超音波 delayMicroseconds(5); digitalWrite(trigPin,LOW); Duration = pulseIn(echoPin,HIGH); //超音波發射到接收的時間 Distance = Duration*0.034/2; //計算距離(cm) Serial.print(Distance);Serial.println("cm"); delay(50);}
void setup() { Serial.begin(9600); pinMode(trigPin,OUTPUT); pinMode(echoPin,INPUT);}
void loop() { digitalWrite(trigPin,LOW); delayMicroseconds(2); digitalWrite(trigPin,HIGH); //發射超音波 delayMicroseconds(5); digitalWrite(trigPin,LOW); Duration = pulseIn(echoPin,HIGH); //超音波發射到接收的時間 Distance = Duration*0.034/2; //計算距離(cm) Serial.print(Distance);Serial.println("cm"); delay(50);}
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