wtf is irremoteesp8266?

IRremoteESP8266 lets small, inexpensive Wi-Fi-enabled microcontrollers send and receive infrared signals, the same kind your TV, air conditioner, or stereo remote uses. With it, a hobbyist board like the ESP8266 or ESP32 can act as a universal remote, controlling household electronics or "listening" to commands from existing remotes. At a hardware level, you wire up a standard infrared LED (to send) or an off-the-shelf IR receiver module (to capture incoming signals), then use the library to handle the tricky part: translating button presses into the specific signal patterns that different brands expect. The library supports a wide range of protocols, meaning it already knows how to "speak" the infrared languages used by various manufacturers. A separate document lists exactly which protocols and devices are covered. The typical user is someone building a DIY smart home project. For example, you might build a device that turns on your air conditioner from a phone app, or one that logs every time someone presses a button on the living room TV remote. Because the ESP8266 and ESP32 both have built-in Wi-Fi, pairing this library with a web interface or home automation platform gives you remote control over appliances that aren't otherwise internet-connected. The project is written in C++ for the Arduino framework, so it's designed to be installed directly through the Arduino IDE's library manager. It started as an adaptation of an earlier Arduino infrared library but was substantially rewritten to better fit the ESP8266's particular capabilities. The maintainers have kept it actively updated over many versions, and they provide troubleshooting guides, an FAQ, and auto-generated API documentation for developers who want to dig deeper.