1. Your ground fill is, let's say, less than ideal. It is running all around the circumference of the board = instant built-in ground loop. You've also got some patches connected via very thin bridges only, those are of somewhat dubious utility. So your grounding will definitely need some work.
2. You are using the same trace widths everywhere. At least give power and ground something a bit wider.
3. It is usually better to do an "inside out" layout that keeps the supplies together (hence, low inductance).
2. You are using the same trace widths everywhere. At least give power and ground something a bit wider.
3. It is usually better to do an "inside out" layout that keeps the supplies together (hence, low inductance).
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