Hey, thanks for your reply, here’s a photo attached, you can have a look at this too. I tried esp32dev-multi_receiver-pilight, tried some others too but to no avail… EDIT: tried 3V3 and 5V… I also have some other devices, don’t know however if they’re 433mhz but they’re not recognized either… Had a Lilygo Lora32 before that could detect some signals from the neighborhood but couldn’t test RF or Pilight libraries, that’s why this could be a solution, see this thread…