Indulge in dot matrix, function: clock display time, month, day, temperature and humidity, pattern display, spectrum beating, top pen to do a 3D printing, spray paint, knock code for a few days, use monochrome dot matrix advantage is want to display anything can pull the code, leave four keys, later can write some small games in, but somehow the sound is very loud noise is very heavy
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Cowhide, big brother
Actually made a real thing, awesome
Great dot matrix
I also compiled the journey myself,
This design and hands-on are on, strong and strong.