Hi all,
I wanted to share with you a not so well known solution to integrate Jarolift TDEF shutters with HA. It is called Jarolift_MQTT and uses an ESP8266 based device and a 433 MHz CC1101 tranceiver module. The project is based on the work done by a German guy who figured out how the Jarolift protocol works. Jarolift_MQTT is quite well documented and is configurable through a web interface and - as the name suggest - uses MQTT. So it is easy to integrate it with HA. It took me a few hours to make it work and it seems to run well so far. The BOM for the hardware is less than USD 10. So anyone interested pls have a look at https://github.com/madmartin/Jarolift_MQTT
Regards