TFT LCD to display Heart Rate from sensor

Projects Programming
1

I have currently got a 2.8 TFT LCD touch shield and i am using it with an arduino uno.

I am having problems getting the heart rate to display on the screen.

I am using the following;

-Grove finger clip heart rate sensor (Grove Finger-clip Heart Rate Sensor w/ Shell - RobotShop)

-2.8 ITDB02 Shield (http://www.robotshop.com/uk/arduino-tft-touch-shield.html)

I have created the following sketch can anyone see where i a have gone wrong?

#include <UTFT.h>
#include <Wire.h>


// Declare which fonts we will be using
extern uint8_t SmallFont[];
extern uint8_t BigFont[];
extern uint8_t SevenSegNumFont[];


UTFT myGLCD(ITDB28,A5,A4,A3,A2);

void setup()
{
  randomSeed(analogRead(0));
  
// Setup the LCD
  myGLCD.InitLCD();
  myGLCD.setFont(SmallFont);
}

void loop()
{
  int buf[318];
  int x, x2;
  int y, y2;
  int r;

// Clear the screen and draw the frame
 // myGLCD.clrScr();

   myGLCD.setColor(255, 0, 0);
  myGLCD.fillRect(0, 0, 319, 13);
  myGLCD.setColor(64, 64, 64);
  myGLCD.fillRect(0, 226, 319, 239);
  myGLCD.setColor(255, 255, 255);
  myGLCD.setBackColor(255, 0, 0);
  myGLCD.print("* HEART RATE GLOVE *", CENTER, 1);
  myGLCD.setBackColor(64, 64, 64);
  myGLCD.setColor(255,255,0);
  myGLCD.print("MADE BY EMMANUEL", CENTER, 227);

  myGLCD.setColor(0, 0, 255);
  myGLCD.drawRect(0, 14, 319, 225);

  
  
  
  Wire.requestFrom(0xA0 >> 1, 1); // request 1 bytes from slave device
  while (Wire.available()) // slave may send less than requested
  {
    unsigned char c = Wire.read(); // receive heart rate value (a byte)
    Serial.println(c, DEC); // print heart rate value
    myGLCD.setColor(VGA_WHITE);
    myGLCD.setBackColor(0, 0, 0);
    myGLCD.setFont(BigFont);
    myGLCD.print(c, CENTER, 0);
  }
delay(500);
}
2

One step at a time.

  1. Try to get the heart rate to display on Serial Monitor
  2. Try to send 'Hello World' to the display.

When you can do both you are ready to combine the two.

3

The code is supplied here:

Have you tried it?