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.

This is my second version, it's much smaller and powered by a mega mini.

I made myself an RFlink with a nice 3d printed case and I’d like to know if the dev’s allow to sell those. I would sell the firmware. Only the hardware, but of course it would be flashed If it’s allowed I would like to open a thread for this here. I already do something similar with zigbee2mqtt: htt...

I reed the FAQ but I couldn’t find out if you can only use one frequency or multiple receivers and transmitters,

So can I have both 433 and 868 MHz?

Also are the modules that are interchangeable.
Same pinout. So that I could simple plug put the one and plug in the other one?

Thanks!