from machine 
import Pin,ADC,PWM
import utime

pot1=ADC(2)     # Pin28=ADC(2)
ledR=Pin(2, Pin.OUT)
Sal_analogica=PWM(ledR)
Sal_analogica.freq(1000) # 1000 hz

pot2=ADC(1)     # Pin27=ADC(1)
ledB=Pin(0, Pin.OUT)
Sal_analogica=PWM(ledB)
Sal_analogica.freq(1000) # 1000 hz

pot3=ADC(0)     #Pin26=ADC(0)
ledG=Pin(1, Pin.OUT)
Sal_analogica=PWM(ledG)
Sal_analogica.freq(1000) # 1000 hz

while 1:
  duty=pot1.read_u16()    #0 .....65535
  Sal_analogica.duty_u16(duty)
  print(duty)
  utime.sleep(.5)

  duty=pot2.read_u16()    #0 .....65535
  Sal_analogica.duty_u16(duty)
  print(duty)
  utime.sleep(.5)

  duty=pot3.read_u16()    #0 .....65535
  Sal_analogica.duty_u16(duty)
  print(duty)
  utime.sleep(.5)