

Adapter soldered
Documentation | Source | Join us on Matrix!
- Size
- 6.6 × 18.7 mm
- Copper layers
- 2
- Thickness
- 0.12 mm
- Parts
- 4
- Nets
- 8
- Pads
- 24
- Tracks, vias
- 41, 2
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 24 Oct 2024
- Updated
- 8 Oct 2026
Overview
Adapter soldered is an open-source printed circuit board by linuxboot, from the linuxboot/flashkeeper repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 6.6 × 18.7 mm with 4 parts on 8 nets, routed with 41 tracks and 2 vias.
Its parts include 1 IC, 1 connector and 1 switch. It belongs with the interfaces and adapters boards of this library.
README
README.mdFlashkeeper
Manage and Protect your SPI Flash Chip!
Documentation | Source | Join us on Matrix!

Flashkeeper is a family of open-hardware add-ons for standard SOIC-8 and WSON-8 SPI NOR flash chips (as are commonly used for firmware storage in PCs and other electronics), providing functionality for write-protection control, SPI bus breakout, flash device emulation, reprogramming, and state validation.
Flashkeeper development takes place on the 15h.org Git forge, and is mirrored to Github as a backup. If you wish to participate in Flashkeeper development on 15h.org infrastructure, please request an account in either the Flashkeeper room or the 15h.org room on Matrix. Issues may be opened on either 15h.org or Github.
For user information, please see the documentation. For hardware source files, see hw/.
The Flashkeeper project is supported by NLnet NGI Zero Core.
Parts
4| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | FFC | flashkeeper:FFC_8_0.5mm | J1 |
| 1 | SPI Flash | flashkeeper:SolderConnector_SOIC8 | U1 |
| 1 | SW_DIP_x01 | Button_Switch_SMD:SW_DIP_SPSTx01_Slide_Copal_CVS-01xB_W5.9mm_P1mm | SW1 |
| 1 | WP | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
Questions
How big is the Adapter soldered PCB?
It measures 6.6 × 18.7 mm and has 2 copper layers, 0.12 mm thick.
What parts does the Adapter soldered use?
4 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Adapter soldered KiCad files?
From the linuxboot/flashkeeper repository on GitHub, at the commit this page was made from: the board is hw/adapter_soldered/integrated_cable/adapter_soldered.kicad_pcb and its schematic hw/adapter_soldered/breakout_wide/adapter_soldered.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Adapter soldered design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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