> For the complete documentation index, see [llms.txt](https://learn.arduinosa.co.za/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.arduinosa.co.za/sensor-kits/37-in-1-sensor-kit/ir-emission.md).

# IR Emission

![](/files/-MS2Pe4-1WCxG63cJWko)

The IR-LED can be used to build a light barrier or an IR remote control signal transmitter.