The Chameleon Bag by Katie McElroy changes colors and patterns based on what’s inside it (or near it). It uses our NFC/RFID breakout and a DC Boarduino to control some 12mm RGB pixels. As the video above shows, the bag can scan your scarf to match your outfit or flash to confirm you remembered to stow your keys. Read more about creating this bag and see the Arduino code in Katie’s blog post.

Every Wednesday is Wearable Wednesday here at Adafruit! We’re bringing you the blinkiest, most fashionable, innovative, and useful wearables from around the web and in our own original projects featuring our wearable Arduino-compatible platform, FLORA. Be sure to post up your wearables projects in the forums or send us a link and you might be featured here on Wearable Wednesday!