Cardinal
About the Cardinal PCB
Cardinal is an open source PCB design by Painterman, published on GitHub under the SHL-2.1 license. It is a 2-layer board measuring 133.2 × 99.5 mm, with 52 components from 11 distinct parts.
Other key parts include the NICE_NANO_V2. By type, the board carries 18 switches, 18 diodes, 1 IC and 1 battery holder.
It belongs with the keyboards, iot & wireless and displays & leds designs in this gallery.
From the project
Split, fully wireless keyboard with a 5 way switch
As this update this should be in a working state and mostly finished, you can find the Kicad project Gerbers ready to order, and the case files in /Case
For a while now I have been using a ferris sweep on and off and wanted to go back to more keys and features. Looking at other keyboard projects i found about the Panasonic EVQWGD encoders and the 5 position switches like SKRHA line from alps and wanted to make a keyboard with both of these, options for displays and other features that I might like.
Main components on the Cardinal
Cardinal bill of materials (BOM)
52 components, 11 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | NICE_NANO_V2 Nice_Nano_V2 | ProMicro_jumpers | U1 |
| 1 | SKRHA | SKRHA-boss_mod_doble | 5Way1 |
| 1 | Battery_Cell | JST_ZH_2PIN_1.5MM | BT1 |
| 6 | Diode | Diode_SOD-123_mod | DT1, DT2, DT3, DT4, DT5way1, DT-1 |
| 1 | SW_SPDT | switch-MSK-12C02-smd | ON/OFF1 |
| 1 | Reset | SW_SPST_B3U-1000P_mod | Reset1 |
| 18 | Switch | Hotswap_Choc_V1_1.00u_mod | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +10 |
| 3 | Switch | Hotswap_Choc_V1_1.00u_mod | Thumb1, Thumb2, Thumb-1 |
| 1 | EVQWGD001 | RollerEncoder_Panasonic_EVQWGD001_mod | Thumb3 |
| 1 | EC11 | RollerEncoder_Panasonic_EVQWGD001_mod | Thumb4 |
| 18 | Diode | Diode_SOD-123_mod | D1, D2, D3, D4, D5, D6, D7, D8 +10 |
Cardinal design files
The KiCad project lives in the Painterman/Cardinal repository on GitHub; these links point at the commit this page was built from.
Cardinal: common questions
How big is the Cardinal PCB?
The Cardinal measures 133.2 × 99.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Cardinal?
52 components, from 11 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Cardinal design files?
From the Painterman/Cardinal repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Cardinal design in my own project?
It is published under SHL-2.1, which limits how it may be reused; read the license before building on it.
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