[Joel] has a remote control ceiling fan. It’s nothing special, the controller has a low-power 350MHz transmitter and a Holtek encoder to send commands by keying the transmitter’s output.

The brand name is “ROCK”, but they don;t provide that many details about this “USB Type C IR Remote Control Transmitter” except the dimensions (37.5 x 14.5 x 7.1 mm) and weight (9 grams). The form ...

This project offers a solution: Use your mobile phone with its Bluetooth connectivity to control an ESP32 board that can both send infrared commands and learn new ones. I chose Bluetooth for ...