Revise paste "Motion Bluetooth" rev_01

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- Project: "Motion Bluetooth"
	- Source Code NOT compiled for: Arduino Uno
	- Source Code created on: 2024-06-09 20:57:26

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* make a bluetooth headtracker to use with opentrack */
	/* software */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include <Wire.h>
#include <SoftwareSerial.h>
#include "MPU6050_6Axis_MotionApps20.h"  // Ensure you have the correct library

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

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t accelerometer_MPU6050_Interrupt_PIN_D2 = 2;

/***** DEFINITION OF Software Serial *****/
const uint8_t bluetooth_HC05_mySerial_PIN_SERIAL_TX_A0 = A0;
const uint8_t bluetooth_HC05_mySerial_PIN_SERIAL_RX_A1 = A1;
const uint8_t bluetooth_HC05_mySerial_PIN_SERIAL_TX_A2 = A2;
const uint8_t bluetooth_HC05_mySerial_PIN_SERIAL_RX_A3 = A3;
SoftwareSerial bluetooth_HC05_mySerial1(bluetooth_HC05_mySerial_PIN_SERIAL_RX_A1, bluetooth_HC05_mySerial_PIN_SERIAL_TX_A0);
SoftwareSerial bluetooth_HC05_mySerial2(bluetooth_HC05_mySerial_PIN_SERIAL_RX_A3, bluetooth_HC05_mySerial_PIN_SERIAL_TX_A2);

/***** DEFINITION OF I2C PINS *****/
const uint8_t accelerometer_MPU6050_I2C_PIN_SDA_A4 = A4;
const uint8_t accelerometer_MPU6050_I2C_PIN_SCL_A5 = A5;
const uint8_t accelerometer_MPU6050_I2C_SLAVE_ADDRESS = 0x68;  // MPU6050 I2C address

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
MPU6050 mpu;  // Instantiate MPU6050 object

/****** VARIABLES *****/
bool dmpReady = false;  // set true if DMP init was successful
uint8_t mpuIntStatus;   // holds actual interrupt status byte from MPU
uint8_t devStatus;      // return status after each device operation (0 = success, !0 = error)
uint16_t packetSize;    // expected DMP packet size (default is 42 bytes)
uint16_t fifoCount;     // count of all bytes currently in FIFO
uint8_t fifoBuffer[64]; // FIFO storage buffer

Quaternion q;           // [w, x, y, z]         quaternion container
VectorFloat gravity;    // [x, y, z]            gravity vector
float ypr[3];           // [yaw, pitch, roll]   yaw/pitch/roll container and gravity vector

volatile bool mpuInterrupt = false; // indicates whether MPU interrupt pin has gone high
void dmpDataReady() { mpuInterrupt = true; }

void setup(void)
{
    // put your setup code here, to run once:

pinMode(accelerometer_MPU6050_Interrupt_PIN_D2, INPUT);

bluetooth_HC05_mySerial1.begin(9600);
    bluetooth_HC05_mySerial2.begin(9600);

// Initialize I2C
    Wire.begin();
    Wire.setClock(400000);  // 400kHz I2C clock

// Initialize Serial
    Serial.begin(115200);
    while (!Serial);  // wait for Leonardo enumeration, others continue immediately

// Initialize MPU6050
    Serial.println(F("Initializing I2C devices..."));
    mpu.initialize();
    pinMode(accelerometer_MPU6050_Interrupt_PIN_D2, INPUT);

// Verify connection
    Serial.println(F("Testing device connections..."));
    Serial.println(mpu.testConnection() ? F("MPU6050 connection successful") : F("MPU6050 connection failed"));

// Wait for ready
    Serial.println(F("\nSend any character to begin DMP programming and demo: "));
    while (!Serial.available());
    while (Serial.available() && Serial.read());

// Load and configure the DMP
    Serial.println(F("Initializing DMP..."));
    devStatus = mpu.dmpInitialize();

// Supply your own gyro offsets here, scaled for min sensitivity
    mpu.setXGyroOffset(220);
    mpu.setYGyroOffset(76);
    mpu.setZGyroOffset(-85);
    mpu.setZAccelOffset(1788);  // 1688 factory default for my test chip

// Make sure it worked (returns 0 if so)
    if (devStatus == 0) {
        // Calibration Time: generate offsets and calibrate our MPU6050
        mpu.CalibrateAccel(6);
        mpu.CalibrateGyro(6);
        mpu.PrintActiveOffsets();
        Serial.println(F("Enabling DMP..."));
        mpu.setDMPEnabled(true);

// Enable Arduino interrupt detection
        Serial.print(F("Enabling interrupt detection (Arduino external interrupt "));
        Serial.print(digitalPinToInterrupt(accelerometer_MPU6050_Interrupt_PIN_D2));
        Serial.println(F(")..."));
        attachInterrupt(digitalPinToInterrupt(accelerometer_MPU6050_Interrupt_PIN_D2), dmpDataReady, RISING);
        mpuIntStatus = mpu.getIntStatus();

// Set our DMP Ready flag so the main loop() function knows it's okay to use it
        Serial.println(F("DMP ready! Waiting for first interrupt..."));
        dmpReady = true;

// Get expected DMP packet size for later comparison
        packetSize = mpu.dmpGetFIFOPacketSize();
    } else {
        // ERROR!
        // 1 = initial memory load failed
        // 2 = DMP configuration updates failed
        // (if it's going to break, usually the code will be 1)
        Serial.print(F("DMP Initialization failed (code "));
        Serial.print(devStatus);
        Serial.println(F(")"));
    }
}

void loop(void)
{
    // put your main code here, to run repeatedly:

// If programming failed, don't try to do anything
    if (!dmpReady) return;

// Wait for MPU interrupt or extra packet(s) available
    while (!mpuInterrupt && fifoCount < packetSize) {
        // Do nothing
    }

// Reset interrupt flag and get INT_STATUS byte
    mpuInterrupt = false;
    mpuIntStatus = mpu.getIntStatus();

// Get current FIFO count
    fifoCount = mpu.getFIFOCount();

// Check for overflow (this should never happen unless our code is too inefficient)
    if ((mpuIntStatus & 0x10) || fifoCount == 1024) {
        // Reset so we can continue cleanly
        mpu.resetFIFO();
        Serial.println(F("FIFO overflow!"));

// Otherwise, check for DMP data ready interrupt (this should happen frequently)
    } else if (mpuIntStatus & 0x02) {
        // Wait for correct available data length, should be a VERY short wait
        while (fifoCount < packetSize) fifoCount = mpu.getFIFOCount();

// Read a packet from FIFO
        mpu.getFIFOBytes(fifoBuffer, packetSize);

// Track FIFO count here in case there is > 1 packet available
        // (this lets us immediately read more without waiting for an interrupt)
        fifoCount -= packetSize;

// Get Yaw, Pitch, and Roll values
        mpu.dmpGetQuaternion(&q, fifoBuffer);
        mpu.dmpGetGravity(&gravity, &q);
        mpu.dmpGetYawPitchRoll(ypr, &q, &gravity);
        Serial.print("ypr\t");
        Serial.print(ypr[0] * 180/M_PI);
        Serial.print("\t");
        Serial.print(ypr[1] * 180/M_PI);
        Serial.print("\t");
        Serial.println(ypr[2] * 180/M_PI);

// Send Yaw, Pitch, and Roll values via Bluetooth
        bluetooth_HC05_mySerial1.print("ypr\t");
        bluetooth_HC05_mySerial1.print(ypr[0] * 180/M_PI);
        bluetooth_HC05_mySerial1.print("\t");
        bluetooth_HC05_mySerial1.print(ypr[1] * 180/M_PI);
        bluetooth_HC05_mySerial1.print("\t");
        bluetooth_HC05_mySerial1.println(ypr[2] * 180/M_PI);

bluetooth_HC05_mySerial2.print("ypr\t");
        bluetooth_HC05_mySerial2.print(ypr[0] * 180/M_PI);
        bluetooth_HC05_mySerial2.print("\t");
        bluetooth_HC05_mySerial2.print(ypr[1] * 180/M_PI);
        bluetooth_HC05_mySerial2.print("\t");
        bluetooth_HC05_mySerial2.println(ypr[2] * 180/M_PI);
    }
}

/* END CODE */