# Rui Santos & Sara Santos - Random Nerd Tutorials
# Complete project details at https://RandomNerdTutorials.com/micropython-timer-interrupts-ep32-esp8266/
 
from machine import Pin, Timer
from time import sleep

# LEDs
red_led_pin = 12
red_led = Pin(red_led_pin, Pin.OUT)
yellow_led_pin = 13
yellow_led = Pin(yellow_led_pin, Pin.OUT)

# Callback function for the red timer
def toggle_red_led(timer):
    red_led.value(not red_led.value())  # Toggle the LED state (ON/OFF)
    print('red LED is: ', red_led.value())

# Callback function for the yellow timer
def toggle_yellow_led(timer):
    yellow_led.value(not yellow_led.value())  # Toggle the LED state (ON/OFF)
    print('yellow LED is: ', yellow_led.value())

# Create periodic timers
red_timer = Timer(1)
yellow_timer = Timer(2)

# Init the timers
red_timer.init(mode=Timer.PERIODIC, period=500, callback=toggle_red_led)  # Timer repeats every 0.5 second
yellow_timer.init(mode=Timer.PERIODIC, period=2000, callback=toggle_yellow_led)  # Timer repeats every 2 seconds

try:
    # Main loop (optional)
    while True:
        print('Main Loop is running')
        sleep(2)
        
except KeyboardInterrupt:
    # Keyboard interrupt occurred, deinitialize the timers
    red_timer.deinit()
    yellow_timer.deinit()
    print('Timers deinitialized')
    # Turn off the LEDs
    yellow_led.value(0)
    red_led.value(0)