Derek Woodroffe's Extreme Kits Badge Packs 143 Transistors — As QR Code Blocks
Extreme Electronics' Derek Woodroffe has designed a badge with a difference: its fully-working scannable QR code is made up of 143 transistors, built into a circuit that drives 24 LEDs around the badge's circumference.
"Primarily it needs to serve as a badge for Extreme Kits, the QR code is the most important thing," Woodroffe writes of the thinking behind the project. "But it needs to be fun, different and attractive (probably not that pretty though). Why? As a badge, it needs to be different, to stand out. Everyone does badges with microprocessors and displays. Plus, I thought it would be easy."
Quick-response (QR) codes were invented at Denso Wave in Japan in the mid-'90s, taking inspiration from the black and white patterns that would appear on a Go board during play owing the placing of the white and black counters. Data is encoded as squares within a larger square, with...
Copyright of this story solely belongs to hackster.io. To see the full text click HERE
