import machine as m
import time as t

led=(m.Pin(7,m.Pin.OUT),m.Pin(6,m.Pin.OUT),
     m.Pin(4,m.Pin.OUT),m.Pin(2,m.Pin.OUT))
pot=m.ADC(m.Pin(27))

while 1:
    value=pot.read_u16()
    voltage=value/65535.00*3.30
    bit8=int(value/65535*256)
    timing=0.1+value/65535*2.4    
    print("raw:",value,"volt:",voltage)
    print("bit8",bit8)
    print("timing:",timing)
    for i in led:
        i.value(not i.value())
    t.sleep(timing)