In this tutorial, we’ll look at a simple example of how to use the Beaglebone Black’s GPIOS by connecting an LED. In this lesson, we’ll look at an example of a program to switch the LED on.

Here’s the circuit to connect your LED to the Beaglebone Black:

The board has GPIOS which operate at +3.3V. We therefore use a 220 ohm resistor to limit the LED input current.

Here’s the program to turn on a LED: