Use espimatic to send commands to pimatic to switch lights

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Sorry, not implemented in ESPimatic, you would have to make the code yourself

@koffienl ok thanks then this route stops for me, I do not have the skills to write this code myself.
Thanks for your answer!

ESPimaticRF would be your best option. A tiny ESP can be hidden easily.

@koffienl but espimaticrf is used as a replacement for an Arduino with 433mhz sender and receiver if I understand it correctly? That’s not what I meant. I have an Arduino with homeduino running but the receiving part has always been a bit flakey.

Yes, you replace the arduino on the Pimatic side with a ESP and the ESPimaticRF code. Everything stays the same. But you can extend the RF network by placing one or more ESP’s with ESPimaticRF as node in your home.
You can choose what the extra ESP’s should do (receive RF and send to pimatic, relay RF commands from pimatic or both).
In the room where you have problems receiving RF you simply place an extra ESP with ESPimaticRF and let it resend the received RF signal over wifi to pimatic.
(if you ONLY want to grab RF receive you could intall one single ESP with ESPimaticRF, because RF signals captured by ESPimaticRF nodes are send over wifi directly to pimatic with the pimatic API - for that specific part you wouldn’t need a ESPimaticRF connected to the pi).

@koffienl ok clear! Not the solution I had in mind but maybe it will solve my receiving issues. Gonna try. Thanks!

To be honest, you are trying to do it the hard way, thats why i mentioned espimaticrf. Ive replaced my arduino with 2 esp’s and coverage is perfect, also receiving…

@koffienl haha well I thought it was simple 😂
It was also as a preparation for when we are going to move to our new home but maybe this will work, big advantage is that in this way I can also replace the noisy Arduino USB connection so let’s order a few more esp’s

Have you considered to use mqtt? Probably there are sketches easy to be found that publish the state of a switch to mqtt. Maybe this can be a start
https://github.com/codmpm/esp-mqtt-btn-switch

How will you power the esp by the way, as they are in the wall?

I have a similar setup but use mysensors for this. Big advantage is that it is powered from batteries. Penlite or cr2032

i am a big fan of espimatic and espimaticRF!
but sometimes even this great piece of software gets to its limits. maybe you can try espeasy instead.
BUT no warranty for anything