# Import hardware control libraries
from machine import Pin, ADC, PWM
import time

# Initialize ADC for the potentiometers on GPIO 27 and 28
pot1 = ADC(Pin(27))
pot2 = ADC(Pin(28))

# Initialize Digital Output pins for the LEDs on GPIO 0 and 1
led1 = Pin(0, Pin.OUT)
led2 = Pin(1, Pin.OUT)

# Initialize PWM for buzzers on GPIO 10 and 11 to control sound
buzzer1 = PWM(Pin(10))
buzzer2 = PWM(Pin(11))

# Function to turn off all outputs (LEDs and sound)
def silence():
    led1.value(0)          # Turn off LED 1
    led2.value(0)          # Turn off LED 2
    buzzer1.duty_u16(0)    # Set buzzer 1 volume to 0
    buzzer2.duty_u16(0)    # Set buzzer 2 volume to 0

# Main execution loop
while True:
    # Read analog values from potentiometers (range 0-65535)
    val1 = pot1.read_u16()
    val2 = pot2.read_u16()
    
    # Print values to the Serial Monitor
    print(f"Pot1: {val1} | Pot2: {val2}")

    # Condition 1: If both potentiometers are below a certain threshold, stay silent
    if val1 < 20000 and val2 < 20000:
        silence()
    
    # Condition 2: If Pot 1 is significantly higher than Pot 2
    elif val1 > (val2 + 1000):
        led1.value(1)           # Turn on LED 1
        led2.value(0)           # Turn off LED 2
        buzzer1.freq(1000)      # Set buzzer 1 frequency to 1000Hz
        buzzer1.duty_u16(32768) # Play sound
        buzzer2.duty_u16(0)     # Mute buzzer 2
        
    # Condition 3: If Pot 2 is significantly higher than Pot 1
    elif val2 > (val1 + 1000):
        led1.value(0)           # Turn off LED 1
        led2.value(1)           # Turn on LED 2
        buzzer2.freq(1500)      # Set buzzer 2 frequency to 1500Hz
        buzzer2.duty_u16(32768) # Play sound
        buzzer1.duty_u16(0)     # Mute buzzer 1
        
    # If values are too close, turn everything off
    else:
        silence()

    time.sleep(0.1)