It’s really hard to trust a best friend to tell you how you really look in that purple cardigan. So, why leave it to chance? Wear a pin that lights up based on feedback of your fashion choices! Paul Langdon and his daughter started on this project last year at a Hackster.io weekend that has blossomed into what they are now calling Green Light: Fashion. Basically a QR code on the front of the pin enables friends or passers-by to vote on your ensemble with the results illuminated for everyone to view, with green lights indicating fashionista and red lights signifying victim. It’s a fun wearable with a kick of IoT and 3D printing.

The base of the pin is 3D printed with an Arduino MKR1000 hiding on the back. The front holds an Adafruit OLED display circled by an Adafruit NeoPixel ring, while Azure Hub helps with the IoT magic. Yes, all those wires do manage to stay hidden and it’s a lot of fun to wear to work or school. Feel like making one yourself? You can check out the dets on Paul’s tutorial on Hackster. I’ll leave you with our NeoPixel Ring that was used for the pin. It’s got 16 juicy pixels ready to bring your fashion alive. Just remember you can tweak colors in the code to suit your own voting system. What’s your fashion IQ?

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!