long range

My current setup involves sending-receiving few variable values, implemented using a struct variable, wirelessly between two ESP32s which are both physically present in the same room, using ESPNow. Each data is sent/rx at an interval of 15ms. This setup is working flawlessly for me. I'm also...

Hi, I'm trying to build a radio beacon that would be mounted on a cat collar. The goal is to get the distance of the cat - every 10 seconds. - for ≈ a month - with a ≈ 30 metters range detection - through walls - can fit on a cat collar (battery + electrical components) Would it be possible...