48 lines
1.1 KiB
Arduino
48 lines
1.1 KiB
Arduino
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/* Arduino example sketch to control a JSN-SR04T ultrasonic distance sensor with Arduino. No library needed. More info: https://www.makerguides.com */
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// Define Trig and Echo pin:
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#define trigPin 2
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#define echoPin 3
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// Define variables:
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long duration;
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int distance;
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void setup()
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{
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// Define inputs and outputs
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pinMode(trigPin, OUTPUT);
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pinMode(echoPin, INPUT);
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// Begin Serial communication at a baudrate of 9600:
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Serial.begin(9600);
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}
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void loop()
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{
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// Clear the trigPin by setting it LOW:
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digitalWrite(trigPin, LOW);
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delayMicroseconds(5);
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// Trigger the sensor by setting the trigPin high for 10 microseconds:
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digitalWrite(trigPin, HIGH);
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delayMicroseconds(10);
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digitalWrite(trigPin, LOW);
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// Read the echoPin. pulseIn() returns the duration (length of the pulse) in microseconds:
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duration = pulseIn(echoPin, HIGH);
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// Calculate the distance:
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distance = duration*0.034/2;
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// Print the distance on the Serial Monitor (Ctrl+Shift+M):
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Serial.print("Distance = ");
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Serial.print(distance);
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Serial.println(" cm");
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delay(100);
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}
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