void temp_meter_05sec_timer(void)
{
//flash_led_once();
switch(timerCallNumber++)
{
case 0: // Start measurements
req:
request_temperature_measurement();
break;
case 1: // 0.5 sec passed, do nothing - we need 0.75 sec
break;
case 2: // 1 sec passed, read measurements.
read_temperature_data();
#if TEMP_FAST_RESTART
timerCallNumber = 1;
goto req;
#else
timerCallNumber = 0;
break;
#endif
}
}
int main(void)
{
//disable interrupts
cli();
//reset watchdog
wdt_reset();
wdt_disable();
init_serial_port(9600);
init_rf_module();
//TODO: set-up unused pins to avoid floating!
//set direction registers ( 1 - output, 0 - input )
DDRB |= ( 1 << LED1_PIN ) | ( 1 << LED2_PIN );
set_led_state(1, 0);
set_led_state(2, 0);
//set up WDT interrupt
_WD_CONTROL_REG = (1<<WDCE) | (1<<WDE);
//Start watchdog timer with 8s prescaler
_WD_CONTROL_REG = (1<<WDIE) | (1<<WDE) | (1<<WDP3) | (1<<WDP0);
//Enable global interrupts
sei();
for ( int i = 0; i < 3; i++ )
{
set_led_state(1, 1);
_delay_ms(100);
set_led_state(1, 0);
_delay_ms(350);
}
uint8_t cycle_count = 0;
while ( 1 )
{
cycle_count++;
if ( cycle_count == 3 )
{
for ( int i = 0; i < 2; i++ )
{
set_led_state(2, 1);
_delay_ms(200);
set_led_state(2, 0);
_delay_ms(200);
}
wdt_reset();
read_temperature_data();
cycle_count = 0;
}else
{
set_led_state(1, 1);
_delay_ms(1000);
set_led_state(1, 0);
}
//wdt_reset();
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sei();
sleep_mode();
}
/*
float temperature, humidity;
while(1)
{
_delay_ms(1000);
power_up_sensor();
_delay_ms(2500);
temperature = 0.0;
humidity = 0.0;
read_data(&temperature, &humidity);
_delay_ms(1500);
power_down_sensor();
}*/
}
