A light-emitting diode (LED) can be modulated in visible light positioning systems so that it acts as a transmitter with a unique ID. However. we must be able to support unique IDs for many different LEDs. and LEDs sometimes also need to transmit other information. https://www.ngetikin.com/limited-save-Apple-iPhone-14-Pro-Clear-Case-with-MagSafe-save-big/