void sleep_until_switch_press()
{
// This routine takes up a lot of program memory :(
// Turn the WDT off so it doesn't wake us from sleep
// Will also ensure interrupts are on or we will never wake up
WDT_off();
// Need to reset press duration since a button release wasn't recorded
press_duration = 0;
// Enable a pin change interrupt to wake us up
// However, we have to make sure the switch is released otherwise we will wake when the user releases the switch
while (is_pressed()) {
_delay_ms(16);
}
PCINT_on();
// Enable sleep mode set to Power Down that will be triggered by the sleep_mode() command.
//set_sleep_mode(SLEEP_MODE_PWR_DOWN);
// Now go to sleep
sleep_mode();
// Hey, someone must have pressed the switch!!
// Disable pin change interrupt because it's only used to wake us up
PCINT_off();
// Turn the WDT back on to check for switch presses
WDT_on();
// Go back to main program
}
void sleep_until_switch_press()
{
// This routine takes up a lot of program memory :(
// Turn the WDT off so it doesn't wake us from sleep
// Will also ensure interrupts are on or we will never wake up
WDT_off();
// Need to reset press duration since a button release wasn't recorded
press_duration = 0;
// Enable a pin change interrupt to wake us up
// However, we have to make sure the switch is released otherwise we will wake when the user releases the switch
while (is_pressed()) {
_delay_ms(16);
}
PCINT_on();
// turn red+green LEDs off
DDRB = (1 << PWM_PIN); // note the lack of red/green pins here
// with this commented out, the LEDs dim instead of turning off entirely
//PORTB &= 0xff ^ ((1 << RED_PIN) | (1 << GREEN_PIN)); // red+green off
// Enable sleep mode set to Power Down that will be triggered by the sleep_mode() command.
//set_sleep_mode(SLEEP_MODE_PWR_DOWN);
// Now go to sleep
sleep_mode();
// Hey, someone must have pressed the switch!!
// Disable pin change interrupt because it's only used to wake us up
PCINT_off();
// Turn the WDT back on to check for switch presses
WDT_on();
// Go back to main program
}
