from machine import Pin, ADC
from neopixel import NeoPixel
from math import log

led = NeoPixel(Pin(23, Pin.OUT), 3)
sensor = ADC(Pin(33),atten=ADC.ATTN_11DB)
b = Pin(25, Pin.IN, Pin.PULL_DOWN)

def adc2t(valor):
    bah = log(1/(65535/valor -1))
    temp = 1/(bah/3950 + 1/298.15) - 273.15
    return temp

while True:    
    if b.value(): #botao pressionado
        t = sensor.read_u16()
        temp = adc2t(t)
        if temp >= 50:
            led[0] = (255,0,0) #vermelho
            led[1] = (255,0,0)
            led[2] = (255,0,0)
            print("Água Quente")
        elif temp < 50 and temp >= 25:
            led[0] = (0,255,0) #verde
            led[1] = (0,255,0) 
            led[2] = (0,255,0)
            print("Água Morna")
        else:
            led[0] = (0,0,255) #azul
            led[1] = (0,0,255) 
            led[2] = (0,0,255)
            print("Água Fria")
    else: #botao nao pressionado
        led[0] = (0,0,0)
        led[1] = (0,0,0)
        led[2] = (0,0,0)
    led.write()