Capture your pet's voice in a one-of-a-kind piece of jewelry! This high-tech DIY shows you how to convert a sound file of your cat's meow into a QR code. Then, we embed the code into a resin pendant.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. You probably already know how to scan a QR code with your phone. It ...

You can scan a QR code using the camera on your smartphone, tablet, or computer — however, you may need to download an app.