Overview

This guide works all Raspberry Pi Models that have headers. That is every model except for the compute modules which do not have headers.

LED backpack displays are a great way to add a simple, bright LED display to your project. These displays get their name because of the controller chip attached to the back of them like a 'backpack'. This HT16K33 controller can drive up to 128 multiplexed LEDs in matrix, bar graph, 7-segment numeric, and even 14-segment alpha-numeric configurations. It handles the LEDs with a constant-current driver so the light is bright and consistent even if the power supply varies.

While we already have a great tutorial and Arduino library for our handy and easy to use LED backpacks, if you're wondering how you can make use of backpack-enabled LED displays on the Pi, this guide will help you get started!

What You'll Need

  1. A Raspberry Pi
  2. A Pi Cobbler Plus
  3. One of our many 8x8 or 4-Digit 7-Segment backpack-enabled displays

Related Information

If you're looking for help on how to assemble one of our backpack-enabled LED displays, have a look at our earlier guide, Adafruit LED Backpacks.  It contains a lot of complimentary information on these displays, including step by step soldering and assembly instructions.

This guide was first published on Aug 24, 2012. It was last updated on 2019-09-07 14:28:39 -0400. This page (Overview) was last updated on Sep 15, 2019.