print("DS18B20 Auslesen")
function read_temp(sensorPin)
sensor = require("ds18b20")
-- Sensor Initialisieren
sensor.setup(sensorPin)
-- Temperatur auslesen und ausgeben
    temperatur = sensor.read()
    t1 = temperatur/10000
    t2 = temperatur % 10000 
    return temperatur,t1,t2
end
--- read temp and send data to volkszähler
function sendData()
read_temp(4)
read_temp(4)
t3 = t1
t4 = t2
--read_temp(5)
--read_temp(5)
print("Temp:"..t3 .. ".".. t4 .." C\n")
print("Temp:"..t1 .. ".".. t2 .." C\n")
-- conection to volkszaehler
print("Sending data Volkszaehler")
conn=net.createConnection(net.TCP, 0)
  conn:on("receive", function(conn, payload) print(payload) end )
  conn:connect(80,"192.168.7.76")
  conn:send("GET /middleware.php/data/12c56460-6f6e-11e5-a954-efa410011295.json? operation=add&value=".. t3 .. "." .. t4 .." HTTP/1.1\r\n Host: 192.168.7.76\r\n".."Connection: keep-alive\r\nAccept: */*\r\n\r\n")
 --conn:send("GET /middleware.php/data/2405f8e0-6f6e-11e5-86c4-317c1c0df60c.json? operation=add&value=".. t1 .. "." .. t2 .." HTTP/1.1\r\n Host: 192.168.7.76\r\n".."Connection: keep-alive\r\nAccept: */*\r\n\r\n")
end
-- send data every X ms to thing speak
tmr.alarm(0, 20000, 1, function() sendData() end )