Example1_BasicReadings.ino

/* SparkFun Ulrasonic Distance Sensor - Example 1 Basic Distance Sensing
 * 
 * Product: 
 *  *  SparkFun Qwiic Ultrasonic Distance Sensor - HC-SR04 (SEN-1XXXX)
 *  *  https://www.sparkfun.com/1XXXX
 * 
 * Written By: Elias Santistevan
 * Date: 06/2024
 *
 * SPDX-License-Identifier: MIT
 *
 * Copyright (c) 2024 SparkFun Electronics
 */

#include "SparkFun_Qwiic_Ultrasonic_Arduino_Library.h"

// Create an ultrasonic sensor object
QwiicUltrasonic myUltrasonic;

// Here we set the device address. Note that an older version of the Qwiic
// Ultrasonic firmware used a default address of 0x00. If yours uses 0x00,
// you'll need to change the address below. It is also recommended to run
// Example 2 to change the address to the new default.
uint8_t deviceAddress = kQwiicUltrasonicDefaultAddress; // 0x2F
// uint8_t deviceAddress = 0x00;

void setup()
{
  // Start serial
  Serial.begin(115200);
  Serial.println("Ultrasonic Distance Sensor Example 1 - Basic Readings");

  Wire.begin();

  // Attempt to begin the sensor
  while (myUltrasonic.begin(deviceAddress) == false)
  {
    Serial.println("Ultrasonic sensor not connected, check your wiring and I2C address!");
    delay(2000);
  }

  Serial.println("Ultrasonic sensor connected!");
}

void loop()
{
  uint16_t distance = 0;
  myUltrasonic.triggerAndRead(distance);

  // Print measurement
  Serial.print("Distance (mm): ");
  Serial.println(distance);

  //Serial.println("Distance (cm): "); 
  //Serial.print((distance / 10.0), 2);         

  //Serial.println("Distace (in): "); 
  //Serial.print((distance / 25.4), 2);         

  // Wait a bit
  delay(250);
}