from machine import Pin, SoftI2C
from umqtt.robust import MQTTClient
import sys
from time import sleep
import ssd1306,dht
import machine
#pin 
i2c = SoftI2C(scl=Pin(22), sda=Pin(21))
sensor = dht.DHT22(machine.Pin(14))

# Définition de la tailler de l'écran oled
oled_width = 128
oled_height = 64
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c)
#Mqtt
client = MQTTClient(client_id=b'micropython',
                    server=b'192.168.1.75',
                    port=1883,
                    user=b'brocolis',
                    password=b'brocolis',
                    ssl=False)

try:
    client.connect()
    print('Connection ok');
except Exception as e:
    print('Could not connect to MQTT server {}{}'.format(type(e).__name__, e))
    sys.exit()
    
while True:
    try:
        sensor.measure()
        temp = round(sensor.temperature(),2)
        hum = round(sensor.humidity(),2)
        #payload={"temp" : str(temp),"hum" : str(hum)}
        payload='{"temp" :'+str(temp)+', "hum" :'+str(hum)+'}'
        client.publish('/capteur/dht22', payload)
        oled.text(str(hum)+"%", 0, 0)
        oled.text(str(temp)+"C", 0, 10) # Affichage de la temperature
        oled.show() # Affiche les valeurs sur l'écran
        sleep(10)
        oled.fill(0) # Renitialise l'affichage
        
    except OSError as e:
        print('Failed to read sensor.')