ECE434 Project - LED Matrix

Revision as of 11:47, 29 October 2019 by Grinstba (talk | contribs) (Installation Instructions)
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Team members: Brock Grinstead and Blake Emmert

Grading Template

I'm using the following template to grade. Each slot is 10 points. 0 = Missing, 5=OK, 10=Wow!

00 Executive Summary
00 Installation Instructions 
00 User Instructions
00 Highlights
00 Theory of Operation
00 Work Breakdown
00 Future Work
00 Conclusions
00 Demo
00 Late
Comments: I'm looking forward to seeing this.

Score:  10/100

(Inline Comment)

Executive Summary

LED Matrix Spectrometer

Our project involves interfacing with an array of LED matrices, audio input, and a touch screen. The goal is to implement two separate functions on the LED matrices. This first function is an audio spectrometer display based on audio input. The second is controlling the LED matrices using a touch screen interface.

Give two sentences telling what works.

Give two sentences telling what isn't working.

End with a two sentence conclusion.

The sentence count is approximate and only to give an idea of the expected length.


If you have hardware, consider Small Build, Big Execuition for ideas on the final packaging.

Installation Instructions


The project is located on GitHub here:


Here are the links for the specific hardware we used for this project.

We borrowed a six panel LED Matrix, power supply, pocket beagle, and pocket scroller cape from Dr. Yoder.

LED Matrix -

Pocket Beagle -

Micro USB Cable -

16 GB Micro SD Card -

Pocket ScrollerV2 Cap -

Power Supply -


Give step by step instructions on how to install your project.

User Instructions

Once everything is installed, how do you use the program? Give details here, so if you have a long user manual, link to it here.


Here is where you brag about what your project can do.

Include a YouTube demo the audio description.

Theory of Operation

Give a high level overview of the structure of your software. Are you using GStreamer? Show a diagram of the pipeline. Are you running multiple tasks? Show what they do and how they interact.

Work Breakdown

Date Milestone Notes
10/26/2019 Controll LED matrix with Falcon Player Brock primarily downloaded and installed Falcon Player to the pocket beagle. Blake primarily setup the LED matrix with the power supply and configured Falcon Player to control the LEDs.
10/29/2019 Gain root access to the Falcon Player Brock primarily gained root access to the pocket beagle and allowed the pocket beagle to connect to the internet through a host computer
11/4/2019 Control the LED matrix via a script running on the pocket beagle Blake and Brock worked together to figure out how to control the LED matrix with a python script
11/9/2019 Have the audio spectrometer fully working
11/12/2019 Read touch screen input
11/16/2019 Control LED matrix via touch screen
11/18/2019 Final documentation

List the major tasks in your project and who did what.

Also list here what doesn't work yet and when you think it will be finished and who is finishing it.

Future Work

Suggest addition things that could be done with this project.


Give some concluding thoughts about the project. Suggest some future additions that could make it even more interesting.