Tile backsplashes are a great addition to any kitchen. They are stylish, easy to clean, and keep water from damaging the wall. But they don't interactively light up. They can't display notifications or even show you the weather. I intend to change that.

In this project I'm modifying a glass tile backsplash by adding an individually controlled LED to each tile. Every tile also gets a microphone serving as a touch sensor, effectively making the backsplash a low resolution touch display.

This installment covers building a larger prototype of the glass tile backsplash. First, I design a new circuit board where I incorporate several changes from the first revision. I then build and break several circuit boards in an attempt to mount them to tiles and onto a wall. I make numerous improvements to the assembly and mounting process. Finally, I show off the prototype with multiple circuit boards all working in unison and give my thoughts on the path forward.

Check out these previous videos where I cover the LED backsplash concept and software in more detail:
   • LEDs, Microcontrollers, and Microphon...  
   • Programming the Smart Backsplash  Wr...  

Chapters:
00:00 Introduction
02:12 Circuit Board Changes
06:33 The Plan for the Prototype
08:30 The High Pass Bug
11:18 Attempt 1
14:28 Attempt 2
15:38 Attempt 3
16:10 Refining the Software
18:39 Final Attempt
21:59 Closing Thoughts

Links to some of the items I’ve used in this video:
ST Link V2 Clone: https://amzn.to/4arg6u1
Official ST Link V3: https://amzn.to/4auZe5G
Quality Breadboards: https://amzn.to/45gL9HE
Jumper Wires: https://amzn.to/3VuKcbv
As an Amazon Associate I earn from qualifying purchases.