Stemma QT-fication of LED backpacks

Our HT16K33-based LED backpacks are a classic Adafruit design we’ve sold for many many years. So we’re thinking of updating them to QT-fication for easy plug-n-play usage. We’re going to do the 7-segment and quad-alphanum at the same time. maybe also a mini 16×8 too – video.


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