I’ve just successfully added those blinds to HA a want to share, how i did it, so people do not have to spend hours seeking info, like i did…
You will need a RFXtrx transceiver.
You will need a Windows machine to flash the firmware
The software setup all together is done in less, than one hour.
Step 1. Install your blinds as the documentation said. Set your limits with the attached remote
Step 2. Download on a Windows machine from the RFXcom website the RFXflash programmer and latest firmware (For RFXtrxE the PRO1 firmware and for RSXtrxXL the PROXL1 firmware)
Step 3. Connect the RFXtrx to a Windows machine
Step 4. Flash the firmware with the programmer
Step 5. Connect the RFXtrx to USB on your HA machine
Step 6. Add the HA integration RFXCOM RFXtrx - Home Assistant
Step 7. Find the integration, click on configure
Step 8. Select Automatically add and the blinds protocol
Step 9. Click save
Step 10. Tap on the UP button on your remote.
You blinds are now added.
Step 11. Go back to the integration, uncheck automatically add and save. That will prevent unwanted device discovery.
You are done, you now have one device with 3 entities.
You can click on the device and add it to lovelace.
And, i found also, that 3 fast clicks on STOP do move the blinds to MY position, if that is setup with the original remote.
Happy blinding…