from machine import Pin
_init()

ledPins = [5,12,13,14,15,16]
leds = []

for pinNum in ledPins:
    leds.append(Pin(pinNum, Pin.OUT))

adc = machine.ADC(0)

def ledOff():
    for led in leds:
        led.off()

def ledOn(count):
    for i in range(count):
        led = leds[i]
        led.on()

while True:
    value = adc.read()
    ledOff()

    if value in range(0,170):
        ledOn(1)
    elif value in range(171,340):
        ledOn(2)
    elif value in range(341,510):
        ledOn(3)
    elif value in range(511,680):
        ledOn(4)
    elif value in range(681,850):
        ledOn(5)
    elif value in range(851,1023):
        ledOn(6)