ECE434 Project Christmas Wreath

Revision as of 09:21, 7 November 2020 by Taylorrc (talk | contribs) (Work Breakdown)
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thumb‎ Embedded Linux Class by Mark A. Yoder

Team members: Emily Dougherty Ryan Taylor

Grading Template

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

09 Executive Summary
09 Packaging
09 Installation Instructions 
09 User Instructions
09 Highlights
09 Theory of Operation
09 Work Breakdown
09 Future Work/Conclusions
09 Demo/Poster
00 Late
Comments: Have a good day.

Score:  90/100

(Inline Comment)

Executive Summary

We want to create a "smart" Christmas wreath that allows the user to display a pattern of LEDs and play Christmas music from a mobile app (blynk). Animations and songs will be predefined and predetermined. Currently, we have the LED strip utilizing the PRU units on the BeagleBone working correctly to display colors on a small LED ring. We plan on moving to a more complete LED strip in the next few days. We have also started development on the USB connected audio jack. We are able to play .mp3 files using the mplayer command on the command line. We believe that the most difficult part of the project will be implementing the functionality of the music player and the LED strip in parallel. To accomplish this, we plan on running separate threads for running the LEDs and playing music. We have not yet been able to successfully run these two in parallel. Overall, we hope to spread a little Christmas cheer before we leave campus at the end of the term. Both of us are excited to be able to control a Christmas wreath using a mobile application.


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

Installation Instructions

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

  • Include your github path as a link like this to the read-only git site:
  • Be sure your is includes an up-to-date and clear description of your project so that someone who comes across you git repository can quickly learn what you did and how they can reproduce it.
  • Include a Makefile for your code if using C.
  • Include any additional packages installed via apt. Include and files.
  • Include kernel mods.
  • If there is extra hardware needed, include links to where it can be obtained.

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.

Consider making it autostart for full credit.


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

Timeline and Milestones

  • Brainstorm various light patterns to implement (11/5)
  • Find more songs to use (11/5)
  • Get the music to stop playing on a button press (11/6)
  • Thread the music and lights so that they occur at the same time (11/8)
  • Finalize the Blynk app (11/11)
  • Assemble final project (11/13)

Who Did What

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.

Major Completed tasks:

  • Setting up Blynk App environment (Emily)
  • Starting and stopping music using mplayer in a python program (Emily)
  • Setting up lights and defining animations using PRU(Ryan)
  • Using threading to use mplayer and the light strip in parallel (Emily)
  • Procuring external power supply for final demo (Ryan)
  • Documentation (Emily and Ryan)

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.

thumb‎ Embedded Linux Class by Mark A. Yoder