from machine import ADC, Pin
from neopixel import NeoPixel
from time import sleep_ms
import math

ledinhos = NeoPixel(Pin(19, Pin.OUT), 16) 

BETA = 3950
adc = ADC(Pin(2))
adc.atten(ADC.ATTN_11DB)

def read_ntc_temperature():
    analog_value = adc.read()
    print(analog_value)
    temperature_celsius = 1 / (math.log(1 / (4096 / analog_value - 1)) / BETA + 1.0 / 298.15) - 273.15
    return temperature_celsius

while True:
    temperature = read_ntc_temperature()

    if temperature < 25:
        cor = (0, 0, 255) #frio
        print ("frio")
    elif temperature > 40:
        cor = (255, 0, 0) #quente
        print ("quente")

    else:
        cor = (0, 255, 0) #morno
        print ("morno")

    for i in range(16):
         ledinhos [i] = cor
    
    ledinhos. write ()

    print (f"Temperatura da água: {temperature}")
    sleep_ms (2000)