How to use 2.4inch TFT LCD ILI9341 along with BMP180 pressure sensor

hi guys, im new arduino forum, ive been working on project , im stuck @ point cant use both modules -.-"

if want use tft works fine code, when add code bmp180 pressure sensor tft gives blank white screen, im problem coding, since first attempt @ using these 2 modules, , first attempt @ using scl , sda, dont know should now, spent hrs searching net im still not able fine solution.



im attaching code post , can verify , tell me wrong in it?

code: [select]


#include <adafruit_gfx.h>    // core graphics library
#include <adafruit_tftlcd.h> // hardware-specific library
#include <touchscreen.h>
#include <banggood9341_hack.h>

#include <sfe_bmp180.h>
#include <wire.h>

sfe_bmp180 pressure;

#define altitude 1655.0 // altitude of sparkfun's hq in boulder, co. in meters


#if defined(__sam3x8e__)
    #undef __flashstringhelper::f(string_literal)
    #define f(string_literal) string_literal
#endif

// when using breakout board only, use these 8 data lines lcd:
// arduino uno, duemilanove, diecimila, etc.:
//   d0 connects digital pin 8  (notice these are
//   d1 connects digital pin 9   not in order!)
//   d2 connects digital pin 2
//   d3 connects digital pin 3
//   d4 connects digital pin 4
//   d5 connects digital pin 5
//   d6 connects digital pin 6
//   d7 connects digital pin 7

// arduino mega, use digital pins 22 through 29
// (on 2-row header @ end of board).
//   d0 connects digital pin 22
//   d1 connects digital pin 23
//   d2 connects digital pin 24
//   d3 connects digital pin 25
//   d4 connects digital pin 26
//   d5 connects digital pin 27
//   d6 connects digital pin 28
//   d7 connects digital pin 29



#define yp a1  // must analog pin, use "an" notation!
#define xm a2  // must analog pin, use "an" notation!
#define ym 7   // can digital pin
#define xp 6   // can digital pin

#define ts_minx 150
#define ts_miny 120
#define ts_maxx 920
#define ts_maxy 940

                // better pressure precision, need know resistance
               // between x+ , x- use multimeter read it
               // 1 we're using, 300 ohms across x plate
touchscreen ts = touchscreen(xp, yp, xm, ym, 300);

#define lcd_cs a3
#define lcd_cd a2
#define lcd_wr a1
#define lcd_rd a0
// optional
#define lcd_reset 12

// assign human-readable names common 16-bit color values:
#define  black   0x0000
#define blue    0x001f
#define red     0xf800
#define green   0x07e0
#define cyan    0x07ff
#define magenta 0xf81f
#define yellow  0xffe0
#define white   0xffff


adafruit_tftlcd tft(lcd_cs, lcd_cd, lcd_wr, lcd_rd, lcd_reset);

int currentcolor = white;
int pressure_value,i=0;

void setup(void) {
 serial.begin(9600);
 serial.println(f("touch screen!"));

 tft.reset();
 uint16_t identifier = 0x9341;
 if(identifier == 0x9341) {
    serial.println(f("found ili9341 lcd driver"));
  }

 
  tft.begin(identifier);
  lcd_init();

  tft.fillscreen(black);
  tft.settextsize (3); // define text size.
  tft.settextcolor (black); // define text color
  tft.setrotation (90); // set screen vertical or horizontal
  tft.fillrect(10, 10, 100, 100, white);
  tft.fillrect(130, 10, 100, 100, white);
  tft.fillrect(10, 120, 220, 90, white);
  tft.fillrect(10, 220, 220, 90, white);
  pinmode(13, output);

}


#define minpressure 5// minimum should > 0
#define maxpressure 1000

int getpressure()
{    if (pressure.begin())
    serial.println("bmp180 init success");
  else
  {
    serial.println("bmp180 init fail\n\n");
  }
 
  char status;
  double t,p,p0,a;

  pressure.starttemperature();
  status = pressure.gettemperature(t);
    if (status != 0)
    { status = pressure.getpressure(p,t);
        if (status != 0)
        {
          // print out measurement:
          serial.print("absolute pressure: ");
          serial.print(p,2);
          pressure_value=p;
        }
    }
 
 return pressure_value;
}

void loop()
{ digitalwrite(13, high);
  tft.setcursor (15, 50);   // place cursor
  tft.println ( "start" ); // write our text on lcd
  tft.setcursor (140, 50);   // place cursor
  tft.println ( "pause" ); // write our text on lcd
  tft.setcursor (90, 155);   // place cursor
  tft.println ( "stop" ); // write our text on lcd
  tft.setcursor (50, 250);   // place cursor
  tft.println ( "settings" ); // write our text on lcd
  tspoint p = ts.getpoint();
  int16_t tempx = p.x;
  p.x = 1023-p.y;
  p.y = 1023-tempx;
  digitalwrite(13, low);

  pinmode(xm, output);
  pinmode(yp, output);

  // scale 0->1023 tft.width
  p.x = map(p.x, ts_minx, ts_maxx, tft.width(), 0);
  p.y = map(p.y, ts_miny, ts_maxy, tft.height(), 0);
  serial.print("("); serial.print(p.x);
  serial.print(", "); serial.print(p.y);
  serial.println(")");

     if (p.y < 110 && p.x < 110) {
           tft.fillrect(10, 10, 100, 100, green);
           tft.fillrect(130, 10, 100, 100, white);
           tft.fillrect(10, 120, 220, 90, white);
           tft.fillrect(10, 220, 220, 90, white);
       }
     if (p.y < 110 && p.x > 120 && p.x <200) {
           tft.fillrect(10, 10, 100, 100, white);
           tft.fillrect(130, 10, 100, 100, yellow);
           tft.fillrect(10, 120, 220, 90, white);
           tft.fillrect(10, 220, 220, 90, white);
       }
     if (p.y > 120 &&  p.y <220) {
           tft.fillrect(10, 10, 100, 100, white);
           tft.fillrect(130, 10, 100, 100, white);
           tft.fillrect(10, 120, 220, 90, red);
           tft.fillrect(10, 220, 220, 90, white);
       }
     if (p.y > 220 &&  p.y <310) {
           tft.fillrect(10, 10, 100, 100, white);
           tft.fillrect(130, 10, 100, 100, white);
           tft.fillrect(10, 120, 220, 90, white);
           tft.fillrect(10, 220, 220, 90, blue);
       }
  serial.print("  "); serial.print(pressure_value);
  serial.println("\n");
}





hi nightmare,
   in 'loop' call "getpressure" - needs in loop !
good luck

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