Just a quick update:
I added the option to get a step-up module (12V) for the transmitter of the rflink mini. This way the transmitter range gets better.
I made some changes to the milight hub too. The model with the external antenna got an LED which shows the the state of the hub (does the same like the internal LED, so it is configurable in the UI). The LED blinks through the logo (letters Mi). The Antenna outlet is on the side now (not on the top any more). Both the USB cable and the antenna went to the same side. I also added the option to get a white antenna for the Milight hub. Mind that the NRF module isn’t always red (could be black too).
Additionally I made another version of the hub. It has a pcb antenna and therefore the hub gets smaller. The range might be a little bit worse, but I got no range issues in my house with that.
