from machine import Pin, DAC
from time import sleep


led1 = DAC(Pin(26)) #DAC output

while True:

    digital_val = 255

    dac_val  = led1.write(digital_val)

    print(dac_val)

    DAC_Volts  = digital_val * (3.3/255)

    print(DAC_Volts)

    sleep(0.5)