import machine
import time

# deED_fine pin numbers for led
RED_LED_PIN = 1
BLUE_LED_PIN = 2
AMBER_LED_PIN = 28

# initialise led pins
redled = machine.Pin(RED_LED_PIN, machine.Pin.OUT)
blueled = machine.Pin(BLUE_LED_PIN, machine.Pin.OUT)
amberled = machine.Pin(AMBER_LED_PIN, machine.Pin.OUT)

# function to toggle LEDs
def toggle_leds():
    redled.value(not redled.value())
    blueled.value(not blueled.value())
    amberled.value(not amberled.value())
    
# blink leds alternitavly
while True:
    toggle_leds()
    time.sleep(0.3) #adjust this for sleep time desired blinking frequency
    

print("Hello, Pi Pico!")