from machine import PWM,ADC,Pin
import utime

s=(Pin(0))
s=freq(50)
adc = ADC(2)

while True:
    pot = int(adc.read_u16()*180/65535)
    print(pot)
    ton=(pot+45)*100000/9
    s.duty_ns(int(ton))
    utime.sleep_ms(200)