C++ (Cpp) KeyPad_getPressedKey Examples

Example #1

File: password.c Project: Hzza3/Password-Based-Security-Door-Lock-using-Atmega16-microcontrollers

void getPassword(uint8 array[])
{
	sint8 i;
	uint8 key;
	for (i = 0; i < 5; i++)
	{
		key = KeyPad_getPressedKey();
		if (key == '*')
		{
			LCD_displayStringRowColumn(1, 0, "                ");
			i = -1;
			continue;
		}
		else if ((key >= 0) && (key <= 9))
		{
			array[i] = key;
		}
		else
		{
			i -= 1;
			continue;
		}
		_delay_ms(BUTTON_DELAY);
		LCD_goToRowColumn(1, i + 3);
		LCD_displayCharacter('*');

		if (i == 4)
		{
			key = KeyPad_getPressedKey();
			if (key == 13)
			{
				break;
			}
			else if (key == '*')
			{
				LCD_displayStringRowColumn(1, 0, "                ");
				i = -1;
				continue;
			}
		}
	}

}

Example #2

File: keypad.c Project: blucell/Embedded_Calculator-AVR

uint32 KeyPad_getSeriesOfPressedNumbers(uint8 len)
{
	uint8 SeriesOfpressedKeys[len];/*Only C99,VLA feature*/
	uint8 index; /*Used For Looping*/
	uint32 value=0; /*The return Number,Only unsigned !*/

	for(index=0;index<len;index++)
	{
		SeriesOfpressedKeys[index]=KeyPad_getPressedKey();
		_delay_ms(300);
	}

	for(index=0;index<len;index++)
	{
		value+=SeriesOfpressedKeys[len-index-1]*powerOf(10,index);
	}
	
	if(!(value >= 0)) return -1;
	
	return value;
}