I can report here, that I just succeeded to control a 3.0 zigbee wall dimmer switch by a simple and cheap CC2531 coordinator.
Ingredients:
- Zulu 8.50
- Openhab 2.5.10 on Windows 10
- CC2531
- SmartRF04eb Programmer
- Z-Stack 3.0 from the zigbee2mqtt (click “view raw”)