Thanks for the quick reply.
I've now bought the KaKu switches. But as you mention that there are specific devices that do and don't work. Is there a common practice of what the brands/types are that work (apart from kaku)?

Hello, I'm trying to make a switch for a heater (2000w) so I use a Conrad remote switch (https://www.conrad.nl/nl/rsl-draadloze-schakelaar-inbouw-1-kanaals-schakelvermogen-max-2000-w-bereik-max-in-het-vrije-veld-70-m-640303.html). But when I want to add it is is not working. So I follow the steps: 1 ...

Dear all, I just got started this weekend with a bound to be new hobby. I've bought a Raspberry Pi 3 and some supplies like a 433mhz RF link kit . I've also attached picture of the transmitter and receiver in the attachment. I have now followed many how-to's and search a lot online but I don't seem ...