Sensor Monitoring rev_24

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    - Project: Sensor Monitoring
    - Source Code compiled for: Arduino Uno
    - Source Code created on: 2023-12-29 00:14:36

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* if distance is less than 20cm so read heart rate. */
    /* If heart rate is above 100bpm so print on serial */
    /* "HUMAN STRESSED". */
/****** END SYSTEM REQUIREMENTS *****/


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/****** DEFINITION OF LIBRARIES *****/
#include <Arduino.h>
#include <Wire.h>
#include <Ultrasonic.h>

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
int readHeartRate();

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t frontSensor_HC_SR04_Echo_PIN_D4 = 4;
const uint8_t sensor_MAX30100_INT_PIN_D5 = 5;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t alarm_ActiveBuzzer_output_PIN_D2 = 2;
const uint8_t frontSensor_HC_SR04_Trigger_PIN_D3 = 3;

/***** DEFINITION OF I2C PINS *****/
const uint8_t sensor_MAX30100_I2C_PIN_SDA_A4 = A4;
const uint8_t sensor_MAX30100_I2C_PIN_SCL_A5 = A5;
const uint8_t sensor_MAX30100_I2C_SLAVE_ADDRESS = 0x57;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
Ultrasonic ultrasonic(frontSensor_HC_SR04_Trigger_PIN_D3, frontSensor_HC_SR04_Echo_PIN_D4);

void setup(void)
{
  pinMode(frontSensor_HC_SR04_Echo_PIN_D4, INPUT);
  pinMode(sensor_MAX30100_INT_PIN_D5, INPUT_PULLUP);

  pinMode(alarm_ActiveBuzzer_output_PIN_D2, OUTPUT);
  pinMode(frontSensor_HC_SR04_Trigger_PIN_D3, OUTPUT);

  Serial.begin(9600);
}

void loop(void)
{
  // Read distance using ultrasonic sensor
  int distance = ultrasonic.read();

  Serial.print("Distance in CM: ");
  Serial.println(distance);

  // Check if the distance is less than 20cm
  if (distance < 20)
  {
    // Read heart rate using MAX30100 sensor
    int heartRate = readHeartRate();
    Serial.print("Heart Rate: ");
    Serial.println(heartRate);

    // Check if heart rate is above 100 bpm
    if (heartRate > 100)
    {
      Serial.println("HUMAN STRESSED");
    }
  }

  delay(1000);
}

int readHeartRate()
{
  // TODO: Implement code to read heart rate using the MAX30100 sensor
  // Return the heart rate value
  return 0;
}