from machine import Pin, ADC, RTC
from time import sleep_ms, localtime
# from random import randint

botao = Pin(26, Pin.IN, Pin.PULL_DOWN)
sensor = ADC(Pin(33), atten=ADC.ATTN_11DB)

relogio = RTC()
relogio.datetime((2026, 4, 22, 2, 15, 46, 0, 0))

ultimoEstado = botao.value()

with open("tabela.csv", "a") as leituras:
    leituras.write("DataHora;Media;Tensao(V)\n")

print(localtime())

while True:
    estado = botao.value()

    if estado != ultimoEstado:
        if estado == 1:
            d_lista = [0] * 3

            for x in range(3):
                d_lista[x] = sensor.read_u16()
                # d_lista[x] = randint(0,100)

            media = sum(d_lista) / len(d_lista)
            tensao = (media * 3.3) / 65535

            i = localtime()
            ts = f"{i[0]}-{i[1]}-{i[2]}T{i[3]}:{i[4]}:{i[5]}"

            with open("tabela.csv", "a") as leituras:
                leituras.write(f"{ts};{media};{tensao:.2f}\n")

            print("Acabou!")

        sleep_ms(100)
        ultimoEstado = estado