433mhz and 868mhz transmitter / receiver?

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Hello,

I’ve different devices at home which communicate at 443Mhz frequency but also devices at 868mhz frequency.
Now i’ve hooked up a 433Mhz transmitter /receiver which work great with the 443mhz devices.
Does somebody know it’s possible to add a second transmitter /receiver for 868Mhz?
Or is there a transmitter/receiver which communicate at 433hz and can switch to 868Mhz?

My setup is a Raspberry PI2B+ with arduino nano and the transmitter/receiver connected at breadboard to the arduino nano.

868MHz isn’t really supported by pimatic at the moment. I know only the pimatic-maxcul plugin which can use a CUL stick.
The development on this front is also really slow. I have some ideas but not much time.

@Icesory thanks for replying. I am very curious about your ideas. If you have more time later let me know