A list of the file types you may encounter in this project. We have attempted to restrict the software dependencies to free programs as much as possible, with a few exceptions (and we are working on those).
.sch
Eagle circuit schematic.brd
Eagle printed circuit board file.ods
Open Document Spreadsheet file (supported by Excel, LibreOffice, etc.).stl
3D part file that can be used to send parts to a 3D printer or production service.scad/escad
OpenSCAD/extended OpenSCAD code used to generate 3D part files.part
Proprietary PTC Creo CAD file. We try to provide open source equivalents to these files as much as possible, because CAD software can be very expensive..md
Markdown file. Just a text file with standardized syntax for headings and things..ino
Arduino program.c/.h/.pde
C source files for Arduino libraries
See also: [Parts List](hardware/Parts List.tsv)