Thank you so very much! It's a fun build (they make great party favors) - and relatively easy to make, so I hope others will make their own.
Color Changing Bling Ring View Instructable »
I'm glad you found the tutorial helpful. It's been a very long time since I worked an that project, but there probably wasn't a particular reason I used those pins rather than power rails. It was likely an artifact of prototyping everything on an Arduino Uno without a breadboard, and I never got around to changing it.
Edge-Lit Seven Segment Clock DisplayView Instructable »
Thank you! I think it's a lot of fun to have jewelry that is "active". This design is straightforward to modify, so you can make other designs and patterns. I have a few of those up on my blog at: http://www.geekmomprojects.com/layered-edge-lit-pendants/
Color-Cycling Glowing Heart PendantView Instructable »
Baseball Cap With Pussycat EarsView Instructable »
Dr. Honeydew and Beaker Halloween Gourds with 3D PrintingView Instructable »
It would work physically, but you would have no control over what was displayed. If you wanted to set the default mode to just display a game of "pong" or something, that would be an small change in the code, which you could implement. To your point, the joystick is not absolutely not necessary for the display to function.
Real-Time IoT Poll Tracking DisplayView Instructable »
Very nice project! I wrote up a similar project with a handbag instead of a messenger bag: http://www.geekmomprojects.com/led-matrix-handbag-2-0-how-to/I used Node-RED and a mosquito MQTT server to parse the Twitter feed, which cut out the work of connecting to the Twitter API. Also, the network connection runs over BLE to an Adafruit app called Bluefruit, which is capable of subscribing to an MQTT feed. BLE will last longer running off of a battery. Of course your project can run independently of a smartphone, which is nice. Great job on this!
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