This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
In case of commercial use, a donation would be appreciated, but not mandatory. Use the provided Design in any way you like. However, if you use it, you need to mention the source and re-publish it under the same license !
Picture shows new Revision 2.7.
Here´s the Schematc of the Mainboard:
And here´s the Files to have it Factory Assembled for you (at JLC PCB):
Alternatively you need to source and place all the Parts.
Most of the Parts are covered in that Shopping List (for older Version !!!)
Further Information can be found in this (old) Manual:
Here are some tips how to solder that without special tools:
Just solder in everything, start with IC´s, and continue from smaller parts to bigger parts one by one, and check the Boxes of the iBOM along with it.