""" Erstes Micropython Projekt
ein einfacher Wettersensor"""
 
#Import
import dht                              #Modul für den Temperatur und Luftfeuchtesensor
from machine import Pin                 #Modul damit wir den Digitalplan ansprechen können
import time                             #Modul für sleep Funktion
import network                          #Modul für WLAN bzw. Internetzugriff
from umqtt.robust import MQTTClient     #Modul für MQTT - Protokoll
import ujson                            #Modul zum Gnerieren eines JOSN - Strings


#Setup
d = dht.DHT22(Pin(15))                  #Objekt d für unseren Temp. Sensor


#Wifi-Connection
print("Connecting to Wifi...")
sta_if=network.WLAN(network.STA_IF)     #WLAN Object
sta_if.active(True)                     #activate WLAN
sta_if.connect('Wokwi-GUEST','')        #ssid und PW


#wait until WLAN is connected
while not sta_if.isconnected():
    print(".",end="")
    time.sleep(0.1)
print("Wifi connected")


#Check ob Wifi noch vorhanden
def check_wifi():
    while not sta_if.isconnected():
        print(".")
        sta_if.connect()


#MQTT Setup
SERVER="industrial.api.ubidots.com"
port=1883
Client_name='Weatherstation1'
topic=b"/v1.6/devices/Weather"
ubidots_token = 'BBFF-3xLu8BNbFZMUTDgeFyisKjlHyKIm7p'


#Client Object
Client = MQTTClient(Client_name, SERVER, port, user=ubidots_token, password=ubidots_token)
 

#publish location
lat = 47.8242
lng = 13.0470
msg = b'{"location": {"lat":%s, "lng":%s}}' % (lat, lng)
Client.connect()
Client.publish(topic, msg)
Client.disconnect()
time.sleep(3)


#Loop
while True:
    try:
        d.measure()
        t=d.temperature()
        h=d.humidity()
        print("Luftfeuchte:",h,"Temperatur:",t)
        msg = ujson.dumps({
            "Luftfeuchte":h,
            "Temperatur":t})
        print (msg)
        Client.connect()
        Client.publish(topic, msg)
        Client.disconnect()
        time.sleep(3)
    except:
        print("Connection lost")
        time.sleep(3)