from machine import ADC,Pin,PWM
from time import sleep

# Initialize ADC pin
adc = ADC(28)  # Use GP26 for analog input
led = PWM(Pin(15))  # Use GP15 for PWM output
led.freq(1000)      # Set frequency to 1 kHz
while True:
    # Read the analog value (0-65535)
    analog_value = adc.read_u16()
    
    # Convert to voltage (assuming a 3.3V reference)
    voltage = (analog_value / 65535) * 3.3
    led.duty_u16(analog_value)
    print(f"Analog Value: {analog_value}, Voltage: {voltage:.2f}V")
    sleep(0.5)