void loop()
{
static int value = 0; // If it isn't 'static' it gets created each time through loop().
adc_key_in = get_key(analogRead(A0)); // Read the keypad
if(adc_key_in == UP)
{
value = constrain(value+1,0,100);
}
else if(adc_key_in == DW)
{
value = constrain(value-1,0,100);
}
lcd.setCursor(0,0);
lcd.print("COUNT:");
lcd.setCursor(0,1);
lcd.print(value);
delay(250); // wait 1/4 second before checking the keypad again
}