/diy/ - Do It Yourself

>>1433293
1. waste of a via
2. wtf, just use power fill
3. maybe you should run your busses bottom-side. for 15MHz I don't think you need that strictly continuous of a ground plane especially if CMOS. at 150MHz you would probably want to consider a four-layer board
4. did I mention avoiding unnecessary vias?
5. definitely widen power traces like otheranon said. wider is always better in fact, use power fill on one side and ground fill on the other and get a free tens-to-hundreds-of-pF distributed capacitor
get out of the mindset of using layers for jumpers and loosen up on "bundling" related signals together. that's what the netlist is for. also start thinking in 2.5D
try preferring one layer for significant horizontal lines and another layer for significant vertical lines. you can use the PCIE connector as lots of free vias
summary: 3/10 your board will *probably* work but it could be more compact and cleaner

>>1433353
use a bluepill instead
arduino + HID is a shit

>>1433472
yeah, the internet

>>1433477
uno probably won't do HID

>>1433496
it's async serial. you should be able to figure it out