Board assembly

All board design files and BOM are in github repository under an open source license. Assemblying the board is straightforward - all you need is a decent sodlering iron - but time-consuming (you need to solder 80 pins).

The Neopixel LEDs are soldered from the bottom of the board; pay attention to orientation (one of LED contacts has a corner cut off):

Main view

Before soldering the TFT display, 3d print the support (in harware/3d printed folder in github) and glue it to the display (I used contact adhesive for plastics). Be careful with the display, they are fragile.

Main view

After soldering all components, use flush cutters to trim the pins of the TFT display and the switch protruding from the bottom of the board.

Main view