Circuit DiagramCopyimport machine import utime # Initialize GPIO pins for LEDs red_led = machine.Pin(16, machine.Pin.OUT) yellow_led = machine.Pin(17, machine.Pin.OUT) green_led = machine.Pin(18, machine.Pin.OUT) # Function to turn all LEDs off def all_off(): red_led.value(0) yellow_led.value(0) green_led.value(0) # Main Loop while True: all_off() # Turn all LEDs off red_led.value(1) # Turn red LED on utime.sleep(5) # Wait for 5 seconds all_off() # Turn all LEDs off yellow_led.value(1) # Turn yellow LED on utime.sleep(1) # Wait for 1 second all_off() # Turn all LEDs off green_led.value(1) # Turn green LED on utime.sleep(4) # Wait for 4 seconds