Mini-Project - Edge-Lit Acrylic National Champions Sign

/Engineering

Overview

 

Some things I learned:

Features and Function

  • On/off toggle switch
  • Push-button to change lighting mode
  • Cordless (battery powered) 
 

Parts list

 
Parts
  • 1/4" thick wood

  • 1/4" acrylic sheet

  • WS2812 LED strip - 3 feet

  • Arduino Uno

  • 6 AA batteries and battery holder

  • Toggle switch

  • Push-button

  • Connector wire 

  • DC barrel jack connectors

  • Wood glue

Tools
  • Laser cutter

  • Soldering iron

  • Hot glue gun (this is essential)

  • Wire cutters/strippers

Design

 

My main goal when designing this was to easily be able to swap out the rechargeable batteries.  I decided to leave one wood panel easy to remove, and do the hard wiring on the other side.  The on/off switch is glued on the right side, with fairly short wires running between it and the Arduino Uno.  The wooden panel on the right is also glued in tightly.  

I used hot glue to attach the LED strip to the acrylic piece - it barely worked, but with enough hot glue it stayed.  

If I made this again I would use extruded acrylic so that the etching is nice and frosted instead of clear-ish like this piece.  I would also use screws instead of glue, so that I could easily access the Arduino to reprogram it.  

Jacob Thompson

jat5@clemson.edu

Clemson, SC

© 2020 By Jacob Thompson

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