Wearable Device For Sign Language Recognition

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Adafruit_MPU6050.h>
#include <Adafruit_Sensor.h>
#include <SoftwareSerial.h>

// Initialize MPU6050
Adafruit_MPU6050 mpu;

// Initialize LCD (I2C address 0x27, 16 columns, 2 rows)
LiquidCrystal_I2C lcd(0x27, 16, 2);

// Define flex sensor pins
const int FLEX_SENSOR_PIN1 = A0;
const int FLEX_SENSOR_PIN2 = A1;
const int FLEX_SENSOR_PIN3 = A2;
const int FLEX_SENSOR_PIN4 = A3;

// MP3 Module connections
const int RX_PIN = 10;
const int TX_PIN = 11;
SoftwareSerial
 mp3Module(RX_PIN, TX_PIN);

void setup(void) {
  // Initialize Serial for debugging
  Serial.begin(115200);
  while (!Serial) delay(10);  // Pause for serial connection

  // Initialize MPU6050
  if (!mpu.begin()) {
    Serial.println("Failed to find MPU6050 chip");
    while (1) delay(10);
  }
  Serial.println("MPU6050 Found!");

  // MPU6050 settings
  mpu.setAccelerometerRange(MPU6050_RANGE_8_G);
  mpu.setGyroRange(MPU6050_RANGE_500_DEG);
  mpu.setFilterBandwidth(MPU6050_BAND_21_HZ);

  // Initialize LCD
  lcd.init();
  lcd.backlight();
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("MPU6050 Ready");
  delay(1000);

  // Initialize MP3 module
  mp3Module.begin(9600);
  setMP3Volume(30);
  
}
void setMP3Volume(uint8_t volume) {
  uint8_t command[] = {0x7E, 0xFF, 0x06, 0x06, 0x00, 0x00, volume, 0xEF};
  mp3Module.write(command, sizeof(command));
}

void playMP3(uint8_t track) {
  // Send command to play specific track on the MP3 module
  uint8_t command[] = {0x7E, 0xFF, 0x06, 0x03, 0x00, 0x00, track, 0xEF};
  mp3Module.write(command, sizeof(command));  // Send the entire command array
}

void loop() {
  // Get sensor events from MPU6050
  sensors_event_t a, g, temp;
  mpu.getEvent(&a, &g, &temp);

  // Read the flex sensor values
  int flex_value1 = analogRead(FLEX_SENSOR_PIN1);
  int flex_value2 = analogRead(FLEX_SENSOR_PIN2);
  int flex_value3 = analogRead(FLEX_SENSOR_PIN3);
  int flex_value4 = analogRead(FLEX_SENSOR_PIN4);

  // Clear LCD
  lcd.clear();
  lcd.setCursor(0, 0);

  // Check for flex sensor activations
  if (flex_value1 > 512 && flex_value2 > 512) { // Flex 1 and Flex 2 bent simultaneously
    lcd.print("I am feeling well");
  } else if (flex_value1 > 512) {  // Flex 1 bent
    lcd.print("I need water");
  } else if (flex_value2 > 512) {  // Flex 2 bent
    lcd.print(" washroom");
    playMP3(1);  // Play corresponding track
  } else if (flex_value3 > 512) {  // Flex 3 bent
    lcd.print("TAKE SHOWER");
    playMP3(2);  // Play corresponding track
  } else if (flex_value4 > 512) {  // Flex 4 bent
    lcd.print("I need meal");
    playMP3(3);  // Play corresponding track
  } else if (a.acceleration.x >9) {  // X-axis condition
    lcd.print("Hello");
  }
   else if (a.acceleration.x >6 & a.acceleration.x <9) {  // X-axis condition
    lcd.print("HOW ARE YOU");
  }
  else {
    // Display MPU6050 data if no flex sensors are bent
    lcd.print("Ax:");
    lcd.print(a.acceleration.x, 1);
    lcd.setCursor(8, 0);
    lcd.print("Ay:");
    lcd.print(a.acceleration.y, 1);

    lcd.setCursor(0, 1);
    lcd.print("Gz:");
    lcd.print(g.gyro.z, 1);
    lcd.setCursor(8, 1);
    lcd.print("flex_value2");
    
  }

  // Wait for 500ms before the next update
  delay(500);
}