I've build this to make people in my office happy :)
The idea is to built something like this "days without accident" panels. Each time somebody will push the button, the counter resets and Last Xmas will play.
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Step 1: The Ikea Frame RIBBA
I took one of this IKEA 3D Frames and took it apart
A 4mm Plexiglas panel and a DinA4 self adhesive paper,with printed Text on it
I used the toner thermotransfer methode to make the PCB's
I made 2 PCB's. One for the counter electronic with the atmega328 CPU, and one for the MP3
module WTV020-SD-16P and the amplifier
The counter increments each 24h.
A piece of red plastic foil for the display and a piece of Mosquito cover for the speaker (with a few test holes :) )
All the stuff fixed inside
The counter reset button
It's installed for 1 year now and it's a pain !!!
25 Days... The highest number ever reached until now :)