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- #include <NewPing.h>
- #define trig 2
- #define echo 3
- #define maxd 200
- NewPing sonar(trig , echo ,maxd);
- int d = sonar.ping_cm();
- void setup() {
- Serial.begin(9600);
- }
- void loop() {
- delay(50);
- Serial.println(d);
- }
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