Controlling ESP from another ESP board

Hi. I haven’t really figured out how to name the topic or where to start.

In general, I have an idea for me to press a regular physical button (without sticking) and this press, for example, activates the light, which is controlled by another ESP board.

That is, I have an esp8266 to which mosfets are connected and they control LED strips. But I want to make something like a remote control. I have no idea where to even start. You can point me to some specific documentation page.

UDP Component — ESPHome

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I’m using HTTP requests on all my Esphomes to communicate between each other and also with non-esphome devices that have api (like Shelly).

Thank you. I couldn’t even think of what to look for. Especially since English is not my native language.