P1 reader wireless – Wemos v3.1

For a long time I was focused on small, smaller, smallest. How to create an as small as possible footprint/pcb. After a few new test and a lot of not used pcbs in the trash, I’ve figured out that less is not always better. A slightly larger pcb results in an, in my opinion, better design. Slightly larger, slightly thinner…

By stretching the pcb, I managed to create extra space to place the Wemos D1 mini on the top, instead on the bottom. That makes the total design thinner, yet a little larger.

There is no change component wise. It is the same schematically design. Only the component layout and pcb is changed.


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