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Nice project. Very useful when we don't want to leave an original arduino in our project and It's arduino hats compatible.But when Arduino clones are so cheap i think making one on my own is more expensive. Especially if we use arduino pro mini :)Anyway. Great project.
1. Could you please upload a video how it works?2. You could connect all ground leads together and save time with wiring, especially with all LEDs.3. DragonBoard is an overkill. Atmega8 could do the job.
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