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22 lines
305 B
22 lines
305 B
3 years ago
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//www.elegoo.com
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//2016.12.08
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#include "SR04.h"
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#define TRIG_PIN 12
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#define ECHO_PIN 11
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SR04 sr04 = SR04(ECHO_PIN,TRIG_PIN);
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long a;
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void setup() {
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Serial.begin(9600);
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delay(1000);
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}
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void loop() {
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a=sr04.Distance();
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if(a>0){
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Serial.print(a);
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Serial.println("cm");
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}
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delay(10);
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}
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