A small PCB drawn today

Layout.

 

Top layer trace

Bottom line

 

The board is small, try to cross the top and bottom traces, so that the success rate of wiring will be higher. Leave enough distance between the place where the trace voltage is high and the place where the frequency is high. The power section is bolded as needed.

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Origin www.cnblogs.com/qingfeng2018/p/12705796.html
PCB