The Raspberry Pi LED

The Raspberry Pi™ hardware has one user-controllable LED. You can program this LED to function as a visual indicator that responds to an input or condition.

The labeling, location, and name of the LED varies by model and version. To locate and identify the LED, use the showLEDs function or the AvailableLEDs property.

To return the LED to its normal purpose as an indicator of SD card activity, restart the Raspberry Pi hardware.

For more information, see LEDs.