from machine import Pin, ADC
from time import sleep

# Setup 4 LED pins as output
led_pins = [Pin(16, Pin.OUT), Pin(17, Pin.OUT), Pin(18, Pin.OUT), Pin(19, Pin.OUT)]

# Setup ADC for potentiometer on GPIO 26
potentiometer = ADC(Pin(26))

while True:
    # Read potentiometer value (0-65535)
    pot_value = potentiometer.read_u16()
    
    # Map pot_value to delay range (0.05 to 1.0 seconds)
    delay = pot_value / 65535 * (1.0 - 0.05) + 0.05
    
    # Turn ON LED 1 and LED 2, Turn OFF LED 3 and LED 4
    led_pins[0].value(1)
    led_pins[1].value(1)
    led_pins[2].value(0)
    led_pins[3].value(0)
    
    # Wait for the mapped delay
    sleep(delay)
    
    # Turn OFF LED 1 and LED 2, Turn ON LED 3 and LED 4
    led_pins[0].value(0)
    led_pins[1].value(0)
    led_pins[2].value(1)
    led_pins[3].value(1)
    
    # Wait for the mapped delay
    sleep(delay)
    
    # Print the potentiometer value and LED delay for debugging
    print(f"Potentiometer Value: {pot_value}, LED Delay: {delay:.2f} s")