Engagement Ring Puzzle Box

I designed and built an electronic puzzle box powered by an Arduino as a creative way to present an engagement ring. The project also served as an example for a class I was teaching at the ACU MakerLab on design software with a lower learning curve.

Design & Construction

• Case Design I used Adobe Illustrator to create the vector files for laser cutting the box panels.

• Custom Button and LED Matrix The front panel featured a custom button and LED grid:

  • Designed the model in Tinkercad for 3D printing
  • Included 36 NeoPixels and 40 push buttons wired in a shift register matrix

• Electronics I soldered and wired everything by hand, creating a compact setup that fit inside the laser-cut case.

Functionality

The puzzle box required solving three sequential puzzles by interacting with the button and LED matrix. Once solved, the Arduino triggered the back panel to release, revealing the ring hidden inside