> 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/pcb-mounted-push-button.md).

# PCB mounted push Button

![](https://451694785-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MPda5vaSVRKTQ6AoAmb%2Fuploads%2Fgit-blob-5b755da52d7cc3ca30a8fff4756363631e99a9ef%2Fimage.png?alt=media)

A built-in 10 K ohm resistor is connected between the centre pin and the ‘S’ pin and can be used as a pull up or pull down resistor. The push button connects the two outer pins.

The Button.h library (available from Arduino) is suitable for use with this.