RFSniffer, 433MHz receiver RPI and MQTT

Do you receive data when running RFsniffer?

./RFSniffer

Do you recieve data when running RFmqtt?

./RFmqtt

If not you have to check you setup. You need the cables connected to the PI, VCC, GND and BMC27/WiringPi2.

Then did you set up Mosquitto and tried to send data from a client to a server in the commandline?

Did you set up the MQTT binding an can send something to the MQTT_data ? Can you see the MQTT binding receiving data in the log?

I miss MQTT_Remote in your items.

If this works, then you will need a rule which triggers on the command you receive.

rule "433MHz RX"
  when
    Item MQTT_data received update
then
    switch MQTT_data.state {
      case "14756833": MQTT_Remote.postUpdate(ON)
    }
end

Will the code be send in intervalls as long as it is open? Or only once?
Will the code be send when the door opens and closes?
Depending on this you will have to desing the rule.