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	- Project: "Distance Measurement"
	- Source Code NOT compiled for: Arduino Uno
	- Source Code created on: 2024-07-06 10:33:59

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* Develop an Arduino project using the Ultrasonic */
	/* library to measure distance with the HC-SR04 */
	/* sensor. The Echo pin is connected to D3 and the */
	/* Trigger pin to D2. Implement functions to read */
	/* sensor data and update output variables. */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include   //https://github.com/ErickSimoes/Ultrasonic

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void updateOutputs(void);

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t HC_SR04_Echo_PIN_D3 = 3;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t HC_SR04_Trigger_PIN_D2 = 2;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
/***** used to store raw data *****/
bool HC_SR04_Trigger_PIN_D2_rawData = 0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
/***** used to store data after characteristic curve transformation *****/
float HC_SR04_Trigger_PIN_D2_phyData = 0.0;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
Ultrasonic ultrasonic(HC_SR04_Trigger_PIN_D2, HC_SR04_Echo_PIN_D3); // Initialize Ultrasonic object

void setup(void)
{
  // put your setup code here, to run once:
  Serial.begin(9600); // Initialize serial communication
  pinMode(HC_SR04_Echo_PIN_D3, INPUT);
  pinMode(HC_SR04_Trigger_PIN_D2, OUTPUT);
}

void loop(void)
{
  // put your main code here, to run repeatedly:
  updateOutputs(); // Refresh output data
  delay(1000); // Delay to avoid flooding the serial monitor
}

void updateOutputs()
{
  HC_SR04_Trigger_PIN_D2_phyData = ultrasonic.read(); // Read distance from ultrasonic sensor
  Serial.print("Distance in CM: ");
  Serial.println(HC_SR04_Trigger_PIN_D2_phyData); // Print distance to serial monitor
}