CapacitiveTouch.c

Demonstrates the use of the graphic API on the TFT display and capacitive touch.

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 * Copyright (C) 2015 Sensorian
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 * This file is part of Sensorian.                                          *
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
 *   GNU Lesser General Public License for more details.                    *
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#include <stdio.h>
#include <unistd.h>
#include "bcm2835.h"
#include "SPI.h"
#include "TFT.h"
#include "GFX.h"
#include "i2c.h"
#include "CAP1203.h"

extern const unsigned char FontASCII8X16[] ;

int main(void)
{
    SPI_Initialize();               //Initialize SPI peripheral
    TFT_Initialize();
    I2C_Initialize();
    CAP1203_Initialize();
    
    unsigned char button = 0x00;
    
    TFT_Background(WHITE);      
    TFT_Circle(80,35,20,RED);           //Button 1
    TFT_Circle(80,80,20,GREEN);         //Button 2
    TFT_Circle(80,125,20,BLUE);         //Button 3
      
    while(1)
    {
        button = CAP1203_ReadPressedButton();

        if(button != 0)
        {               
            switch(button)
            {
                case 1:
                    TFT_Disk(80,35,10,RED);
                    break;
                case 2:
                    TFT_Disk(80,80,10,GREEN);
                    break;                  
                case 3:
                    TFT_Disk(80,125,10,BLUE);
                    break;              
                default:
                    TFT_Circle(80,35,20,RED);
                    TFT_Circle(80,80,20,GREEN);
                    TFT_Circle(80,125,20,BLUE); 
                    TFT_Circle(80,35,19,RED);
                    TFT_Circle(80,80,19,GREEN);
                    TFT_Circle(80,125,19,BLUE);
                    TFT_Disk(80,35,10,WHITE);
                    TFT_Disk(80,80,10,WHITE);
                    TFT_Disk(80,125,10,WHITE);                  
            }   
        }
        delay_ms(100);
    }

    return 0;
}