2 layers50 × 23.2 mm
Analog
hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
32 parts1kGPL-3.0
2 layers140.5 × 91.4 mm
This keyboard is compact, reliable, and relatively easy to build. It is diodeless, the protection circuit is optional. Only the TH USB-C connector could be an annoyance for an inexperienced builder, but that’s it.
- Size
- 140.5 × 91.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 32
- Nets
- 47
- Pads
- 512
- Tracks, vias
- 401, 83
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 18 May 2024
- Updated
- 21 May 2024
Overview
Dedekind is an open-source printed circuit board by ProgressiveNoise, from the ProgressiveNoise/DedekindKeyboard repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 140.5 × 91.4 mm with 32 parts on 47 nets, routed with 401 tracks and 83 vias.
Its parts include 21 switches, 2 diodes, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.
README
README.mdDedekind, inspired by Cantor
-
Infinite set of silly mathematical jokes.
-
Permissive Open Hardware Licence - do whatever you want with it.
-
Not just PCBs, this repo contains STEP for a decent and easy to print case. Your build will be very solid.
-
Reversible, no need to order 10 boards.
-
MX Hotswap.
-
Robust through-hole USB-C socket for interconnection:
-
Very reliable.
-
Does not fry MCU I/Os by design.
-
Cables are available in every shop on the planet.
-
-
Optional extra protection circuit.
-
RP2040 is a powerful and well-supported MCU.
-
Easy to source parts.
This keyboard is compact, reliable, and relatively easy to build. It is diodeless, the protection circuit is optional. Only the TH USB-C connector could be an annoyance for an inexperienced builder, but that’s it. Everything else should be smooth.
Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 21 | SW_Push | local:SW_Hotswap_Kailh_MX_DS_1.00u | SW1, SW2, SW3, SW4, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21 +5 |
| 3 | MountingHole | local:MountingHole_3.2mm_M3 | H1, H2, H3 |
| 2 | ESD5Zxx | local:D_SOD-323_TH_HandSoldering | D1, D2 |
| 2 | SolderJumper_3_Open | local:R_0805_2012Metric_Pad1.20x1.40mm_Jumper_HandSolder | JP1, JP2 |
| 1 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H4 |
| 1 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H5 |
| 1 | RaspberryPi_Pico | local:RaspberryPi_Pico_Common_Reversable | U1 |
| 1 | USB_C_Receptacle_USB2.0 | local:USB_C_Receptacle_JBL | J1 |
Questions
How big is the Dedekind PCB?
It measures 140.5 × 91.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dedekind use?
32 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 Dedekind KiCad files?
From the ProgressiveNoise/DedekindKeyboard repository on GitHub, at the commit this page was made from: the board is V1/pcb/dedekind.kicad_pcb and its schematic V1/pcb/dedekind.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dedekind design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 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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