# Backpack interposer

The Backpack interposer module's schematic and board, KDINT001 revision 1.0, viewable here and downloadable as KiCad sources.

## What it is

The backpack interposer is a passive adapter: a 2.54 mm header on the Kode Dot side and a 0.8 mm board-to-board connector on the module side, with every signal routed straight through. It is what lets the Mesh and F*CK modules stand upright. Two copper layers. The module's page, `modules/overview`, says what it does and which GPIO is which; this page is the design itself.

Revision 1.0, released 2026-09-14, drawn in KiCad 10. Symbols, footprints and 3D models come from Kode's shared hardware library.

## Schematic

Zoom with the wheel, drag to pan, and switch sheets from the toolbar.

**Backpack interposer module, KDINT001 rev 1.0**

KiCad sources:

- [backpack_interposer.kicad_sch](/hardware/interposer/backpack_interposer.kicad_sch)
- [main.kicad_sch](/hardware/interposer/main.kicad_sch)
- [revision_history.kicad_sch](/hardware/interposer/revision_history.kicad_sch)

Each sheet, as a plain image:

- [Main](/hardware/interposer/svg/backpack_interposer-Main.svg)
- [Revision History](/hardware/interposer/svg/backpack_interposer-Revision%20History.svg)
- [Cover](/hardware/interposer/svg/backpack_interposer.svg)

## Files

The schematic sources, as published here. Open the `.kicad_pro` in KiCad 10 with the sheets beside it. The cover sheet's embedded fonts were removed from these copies and the project's text variables written in; the design is unchanged. The board layout is not published.

- [backpack_interposer.kicad_sch](/hardware/interposer/backpack_interposer.kicad_sch)
- [main.kicad_sch](/hardware/interposer/main.kicad_sch)
- [revision_history.kicad_sch](/hardware/interposer/revision_history.kicad_sch)
- [backpack_interposer.kicad_pro](/hardware/interposer/backpack_interposer.kicad_pro)

**TBD**: the manufacturing package (Gerbers, drills, BOM, positions) and the licence the files are published under.