433toMQTTto433 - ESP8266 program for home automation , gateway between 433mhz and MQTT on both directions Tutorial and schema are there https://1technophile.blogspot.com/2016/09/433tomqttto433-bidirectional-esp8266.html
433nIRtoMQTTto433nIR - ESP8266 gateway between 433mhz, infrared and MQTT on both directions Tutorial and schema are there https://1technophile.blogspot.fr/2016/11/433nIRtomqttto433nIR-bidirectional-esp8266.html
examples_with_gpio_usage/433toMQTTto433nFan_ESP8266 - ESP8266 gateway between 433mhz and a fan's remote control, from MQTT to the fan only. Tutorial is here https://github.com/rickybrent/433toMQTTto433_ESP8266/wiki/Flower-Angel-18R-ST6
These gateways can be integrated with home automation systems like Openhab or Home assistant thanks to the MQTT protocol.
A list of supported 433mhz devices is available here: https://community.home-assistant.io/t/433tomqttto433-gateway-device-list/7819
The gateway integrate Ntuple 433mhz signal detection over a determined time to avoid unnecessary MQTT messages.
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