import time
import math
from machine import Pin, ADC

led3 = Pin(22, Pin.OUT)
led2 = Pin(27, Pin.OUT)
led1 = Pin(28, Pin.OUT)

pot = ADC(Pin(26))

def _map(x, in_min, in_max, out_min, out_max):
    return int((x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min)

while True:

    a = pot.read_u16()

    reading = _map(a, 0, 65535, 0, 100)

    led1.value(1)   # less than 37C, Cool Temp

    if reading >= 38: # >= 38C Warm Temp
        led2.value(1)
    else:
        led2.value(0)
    
    if reading >= 70:  # >= 70 Hot Temp
        led3.value(1)
    else:
        led3.value(0)

    print("Temperature: {}C\u00b0".format(reading))
    time.sleep_ms(500)