433toMQTTto433 - Bidirectional ESP8266 NodeMCU gateway between RF 433Mhz signal and MQTT

The goal is to act as a gateway between 433Mhz sensors and a MQTT broker or between the MQTT broker and 433Mhz actuators, It enables to receive MQTT data from a topic and send RF 433Mhz signal corresponding to the received MQTT data and publish MQTT data to a different topic related to received 433Mhz signal.
1technophile.blogspot.de/2016/09/433tomqttto433-bidirectional-esp8266.html