im making a user operating interface with keypad like ATM .
in a point ( if (buff[10] =='R')
and i have to goto to this function again
void testtext(uint16_t color)
how can i drive this ?
#define LCD_CS A3
#define LCD_CD A2
#define LCD_WR A1
#define LCD_RD A0
#define LCD_RESET A4
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#include "TFTLCD.h"
#include <Keypad.h>
const byte ROWS = 5;
const byte COLS = 4;
char buff[11];
long lastUpdate = 0;
int x,i,e;
TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);
char keys[ROWS][COLS] =
{
{'1','6','A','D'},
{'2','7','B','E'},
{'3','8','C','N'},
{'4','9','X','Y'},
{'5','0','Z','R'},
};
byte rowPins[ROWS] = {40,39,38,37,36}; //connect to row pinouts
byte colPins[COLS] = {32,33,34,35}; //connect to column pinouts
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
void setup(void)
{
Serial.begin(9600);
Serial.println("-8 Bit LCD test!");
tft.reset();
tft.initDisplay();
}
void loop(void)
{
char key = keypad.getKey();
if (key != NO_KEY)
{
buff[i] = key;
i = i+1;
x=x+8;
}
if((millis() - lastUpdate) > 700) // has it been >1 second since the last update?
{
testtext(BLACK);
lastUpdate = millis();
}
if ( i==10) // ask user to retry or enter the number inputed
{ testtext2(WHITE);
}
if (buff[10] =='R') // RETRY
{
testtext3(BLACK);
i==0;
}
if (buff[10] =='Z') // OK WITH THE STUDENT ID NEXT PASSWORD
{
testtext4(BLACK);
{
if(e<10)
Serial.print(buff[e]);
e++;
}
}
}
//-------------------------------------------------------------------------------------------------------------------------------------
void testtext(uint16_t color) // 10 press in the beginning
{
if( i<11)
{
tft.fillScreen(BLACK);
tft.setCursor(50, 20);
tft.setTextColor(YELLOW);
tft.setTextSize(2);
tft.println("ENTER YOUR");
tft.setCursor(50, 40);
tft.setTextSize(2);
tft.println("STUDENT ID");
tft.setCursor(x, 75);
tft.setTextSize(2);
tft.print(buff);}
}
void testtext2(uint16_t color)
{
Serial.println("-its 11th press-");
tft.setCursor(60, 100);
tft.setTextColor(GREEN);
tft.setTextSize(2);
tft.drawRect(tft.width() -60, tft.height() -80, 40 , 25, RED);
tft.print(" if correct");
tft.setCursor(60, 120);
tft.print(" press Enter");
tft.setCursor(60, 180);
tft.setTextColor(RED);
tft.drawRect(tft.width() -60 , tft.height() -80, 40 , 30, RED);
tft.print("if wrong ");
tft.setCursor(60, 200);
tft.print("press Cancel");
}
void testtext3(uint16_t color)
{
tft.drawRect(0, 0, tft.width(), tft.height(), WHITE);
//tft.drawRect(tft.width() -0, tft.height() -0,240,320, CYAN);
tft.fillRect(0, 0, tft.width(), tft.height(), WHITE);
tft.setCursor(120, 200);
tft.setTextColor(BLACK);
tft.setTextSize(2);
tft.print(" try again ");
}
void testtext4(uint16_t color)
{
tft.fillScreen(CYAN);
tft.setCursor(180, 190);
tft.setTextColor(RED);
tft.setTextSize(2);
tft.print(" number is entered");
}