While the AngstromIO is a tiny devboard, yet powerful, that could be embbeded in any space constrained projects, the CH32 devboard is more an experimentation board, for me to learn how to program this awesome chip on the MounriverStudio programming and how to program a charlieplexed matrix. The Programmer is an all in one module, that will make debugging with the Serial monitor while programming easy: one board for both.
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。关于这个话题，新收录的资料提供了深入分析
Артём Верейкин (Ночной линейный редактор)
Equal: Every domino half in this space must be the same number of pips.