You can use the Millis() timer to check, and do whatever you want after the time reached.
You need to declare it as more than an int ( long will work)
I use a 30 second one in one of my sketches
int ButtonTimeout = 30000;
// Timeout if no button is pressed. Note wipe interval is lower than this. [30 seconds]
unsigned long ButtonPressTime = 0;
// Time the last button was pressed.
if (((millis()-ButtonPressTime) > ButtonTimeout) && (IntWipe == 1))
// 30 Sec timeout for no button press, but only after stopped, or 1 start.
{
IntWipe = 0;
LastWipeTime = 0;
WipeInterval = 0;
}
@ARif you may use timer interrupt of atmega but it will change delay or some of pwm functionality...so be careful by doing this... as mills() and micros() concern will not work exactly like interrupt it is accurate but its polling....so if your code complexity is less then go ahead with mill() or micros()...
