#include <Wire.h> // Include the Wire library for I2C communication
#include <LiquidCrystal_I2C.h> // Include the LiquidCrystal_I2C library
//#include <HardwareSerial.h> // Include the HardwareSerial library for hardware serial communication

// Define hardware serial port for communication with the blood pressure sensor
HardwareSerial BP(2); // Use Serial2 or any other appropriate hardware serial port

// Initialize theLCD module
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x3F, 16, 2);// Change the address and other parameters as needed

void setup() {
  BP.begin(9600); // Initialize serial communication with the blood pressure sensor
  Serial.begin(9600); // Initialize serial communication for debugging

  Wire.begin(); // Initialize the I2C communication

 LCD.init(); // Initialize theLCD
 LCD.backlight(); // Turn on the backlight

  // Print initial messages on theLCD
 LCD.setCursor(0, 0);
 LCD.println("Blood Pressure!");
 LCD.setCursor(0, 1);
 LCD.println("Measurement Using");
 LCD.setCursor(0, 2);
 LCD.println("ESP32");
}

void loop() {}
/*{
  
  boolean BPavailable=false;
  char data[32]; byte i=0;
  while(BP.available())
  {
    char c=BP.read();
    data[i]=c;
    i++;
    BPavailable=true;
  }
  if(BPavailable)
  {
      char *strings[3]; 
      char *ptr = NULL;    
       byte index = 0;
       ptr = strtok(data, ",");  // delimiter
       while (ptr != NULL)
       {
          strings[index] = ptr;
          index++;
          ptr = strtok(NULL, ",");
       }
    
       int systolic = atoi(strings[0]);  // devices
       int diastolic = atoi(strings[1]);  // temperature
       int bpm = atoi(strings[2]);  // humidity
       
       
   LCD.clear();
    Serial.println(data);
   LCD.setCursor(0,0);   
   LCD.print("Systolic: ");
   LCD.setCursor(11,0);   
   LCD.print(systolic);

   LCD.setCursor(0,1);   
   LCD.print("Diastolic: ");
   LCD.setCursor(11,1);   
   LCD.print(diastolic);

   LCD.setCursor(0,2);   
   LCD.print("Heart Rate: ");
   LCD.setCursor(12,2);   
   LCD.print(bpm);

  }
}
  /*if (BP.available()) {
    // Read data from the blood pressure sensor
    String data = BP.readStringUntil('\n');
    
    // Parse the data and display on theLCD
    // (You'll need to implement this part based on your data format)
    parseAndDisplayData(data);

    // Print the data for debugging
    Serial.println(data);
  }
}

void parseAndDisplayData(String data) {
  // Parse the data and display on theLCD
  // Implement this function based on your data format
*/