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22 lines
453 B
22 lines
453 B
#define trigPin 7
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#define echoPin 6
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void setup() {
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Serial.begin (9600);
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pinMode(trigPin, OUTPUT);
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pinMode(echoPin, INPUT);
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}
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void loop() {
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long duration, distance;
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digitalWrite(trigPin, LOW);
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delayMicroseconds(2);
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digitalWrite(trigPin, HIGH);
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delayMicroseconds(10);
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digitalWrite(trigPin, LOW);
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duration = pulseIn(echoPin, HIGH);
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distance = (duration/2) / 29.1;
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Serial.print(distance);
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Serial.println(" cm");
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delay(250);
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}
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