from machine import Pin, DAC
from time import sleep_us

dac = DAC(Pin(26))  # Prilagodite pin prema vašem mikrokontroleru

while True:
    for i in range(0, 256):
        value = i / 255  # Pretvori u raspon od 0.0 do 1.0
        dac.write_u16(int(value * 65535))  # 16-bitni DAC vrijednosti od 0 do 65535
        sleep_us(11600)  # Čekaj 11.6 ms