Thanks. I think I see where to go next. Maybe something like the command line sensor… The reason why I’m following this approach is that HA, though it has the GPIO switch platform, doesn’t seem capable of reading varying data arriving via a GPIO pin then filtering and dealing with it. As in this page:
But my variation on the rpi-rf receive script rpi-rf_receive will be able to do this (sorting out the wanted sniffed codes from the noise arriving from the hundreds of nearby 433Mhz sensors in my neighbourhood). The idea is to put only those signals coming from a list (a sort of list of “paired sensors”) into HA. I will continue this discussion soon on Discord once I have thought it over. Thanks again.