mqtt-to-433mhz
There are 2 repositories under mqtt-to-433mhz topic.
genestealer/ESP8266-433Mhz-Controller-Gateway
433Mhz transmitter MQTT gateway running on NodeMCU (ESP8266 Wi-Fi) - Arduino PlatformIO
genestealer/Bunny-Shed-Climate-Control
Bunny shed temperature controller using ESP8266 NodeMCU, 433Mhz transmitter, MQTT and Home Assistant - Arduino platformIO