import machine
from machine import Pin
from time import sleep
rled=Pin(2,Pin.OUT)
gled=Pin(3,Pin.OUT)
yled=Pin(4,Pin.OUT)
potPin=28
myPot=machine.ADC(potPin)
while True:
    potVal=myPot.read_u16()
    voltage=(100/65105*potVal)-(43000/65105)
    print(voltage)
    if 0<=voltage<=79:
        gled.value(1)
        rled.value(0)
        yled.value(0)
    if 80<=voltage<=94:
        gled.value(0)
        rled.value(0)
        yled.value(1)
    if 95<=voltage<=100:
        gled.value(0)
        rled.value(1)
        yled.value(0)