Dez const int pingPin = 7; void setup() { Serial.begin(9600); } void loop() { long duration, inches; pinMode(pingPin, OUTPUT); digitalWrite(pingPin, LOW); delayMicroseconds(2); digitalWrite(pingPin, HIGH); delayMicroseconds(5); digitalWrite(pingPin, LOW); pinMode(pingPin, INPUT); duration = pulseIn(pingPin, HIGH); inches = microsecondsToInches(duration); Serial.print(inches); Serial.print("in, "); Serial.println(); delay(100); } long microsecondsToInches(long microseconds) { return microseconds / 74 / 2; }