# IR Emission

![](https://451694785-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MPda5vaSVRKTQ6AoAmb%2Fuploads%2Fgit-blob-ffd2c943fc6d38b7545089daab3a365699744a17%2Fimage.png?alt=media)

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