US100_ESP32.ino

#define US100_Trig_PIN 22
#define US100_Echo_PIN 23

void setup() {
  pinMode(US100_Trig_PIN, OUTPUT);
  pinMode(US100_Echo_PIN, INPUT);

  Serial.begin(115200);
}

void loop() {
  digitalWrite(US100_Trig_PIN, LOW);
  delayMicroseconds(5);
  digitalWrite(US100_Trig_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(US100_Trig_PIN, LOW);
  unsigned int PulseWidth = pulseIn(US100_Echo_PIN, HIGH);
  unsigned int distance = PulseWidth * 0.1657;

  Serial.print("Distance is ");
  Serial.print(distance);
  Serial.println(" mm.");
  delay(100);
}