RomanSESPboy.pro v2.1 improvements.
The PRO version is rather complicated and i think it will be sutable only for hardcore geeks :)
For regular users it's better to take EDU version!
1. 2 side buttons added for more comfortable horizontal usage
2. Micro SD card slot added
3. GROVE sensors jack added
4. Some tracings improvement
Discussions
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it's clean side ) Wemos esp8266 is on the another side. on this side should be a battery and if somebody needs SD card reader, it's possible to solder it and then battery will be above. so SD slot just add about 1mm thickness overall
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Are you sure with removing SD card over pin header?
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