from machine import Pin, PWM, SoftI2C
from random import randint
from dht import DHT22
import ssd1306
import time

#DHT22
dht = DHT22(Pin(28)) 

#OLED
i2c = SoftI2C(scl=Pin(5), sda=Pin(4))
ancho = 128
alto = 64
oled = ssd1306.SSD1306_I2C(ancho, alto, i2c)

#LED RGB
LedRojo = PWM(Pin(0),5000)
LedVerde = PWM(Pin(1),5000)
LedAzul = PWM(Pin(2),5000)

#Buzzer
Buzzer = PWM(Pin(3))
Buzzer.duty_u16(0)
Buzzer.freq(500)

#ALARMA
def Alarma():
    for i in range(5):
        Buzzer.duty_u16(1000)
        LedRojo.duty_u16(randint(0,65535))
        LedVerde.duty_u16(randint(0,65535))
        LedAzul.duty_u16(randint(0,65535))
        time.sleep(0.2)
        Buzzer.duty_u16(0)
        LedRojo.duty_u16(0)
        LedVerde.duty_u16(0)
        LedAzul.duty_u16(0) 
        time.sleep(0.2)

while True:
    #DHT22
    dht.measure()
    temp = dht.temperature()
    hum = dht.humidity()
    oled.fill(0) #Borra la pantalla
    for i in range(128):
        oled.pixel(i,15,1)
    oled.text("METEOROLOGIA", 15, 2)    
    oled.text("Temperat: " + str(temp)+"C", 0, 30)
    oled.text("Humedad: " + str(hum)+"%", 0, 50)
    oled.show()
    if(temp>40 or hum>95):
        Alarma()
        time.sleep(2)
    time.sleep(2)