If you happen to need to solder the ulx3s board by hand, this article will provide some useful info about which parts are essential and which can be skiped or replaced with different values.

We'll group the parts in three categories, essential, important and optional. The essential parts will be those that are both, needed for board to work, and have to be the exact value to avoid the magic smoke. The important parts are those without which the board won't function but the values are less of an issue, and the optional parts are those that can be skipped and enable certain features.

This section is most critical because it produces correct values for powering the board, all components should be populated and the values should be exact.

This section provides the USB connection which enables us to test the board.