LokeshPatil-loki/akarsh98-Automatic-AC-Control-using-Arduino ? reverse-engineered prompt

Build me a simple Arduino project that can control an AC unit with IR signals.

I want one sketch that can learn the AC remote codes and then send the right IR command when I press a button or use serial input. If it makes sense, include a small receive example too, so I can capture and test the codes first. Keep it easy to upload and use with common Arduino hardware and an IR transmitter and receiver module.

Please make the code clear and beginner friendly, with comments explaining what each part does, and include a quick setup note for wiring, uploading, and testing. If you need to check current library usage or examples online, go ahead and do that.