KyriousCrab
About the KyriousCrab PCB
KyriousCrab is an open source PCB design by oceanKeebs, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 167.7 × 145.8 mm, with 111 components from 8 distinct parts.
By type, the board carries 37 LEDs, 31 switches and 31 diodes.
It belongs with the keyboards designs in this gallery.
From the project
KeebPort, a split Keyboard architecture using a single micro controller as a central "port"
Keeb Port is a split keyboard architecture with a central part housing a micro controller and 6 keys (two keys can be replaced with encoders optionally). Right and left part of the split keyboard do not include a micro controller but an IO expander (MCP23017) processing the key activation information and connected via i2c to the central part. The LED control signal is generated by the micro controller and provided via a separate line to both split keyboard parts. Central and split keyboard parts are connected with TRRRS (5-pin). All layouts share the same firmware.
KyriousCrab bill of materials (BOM)
111 components, 8 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 8 | MountingHole | Throughhole_Standoff | H1, H2, H3, H4, H5, H6, H7, H8 |
| 1 | SolderJumper_2_Open | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP_LED_Ctrl_BypassUG1 |
| 31 | SW_Push | MX_lss_100U_doubleSided | SW0_4, SW0_5, SW0_6, SW0_7, SW0_8, SW0_9, SW1_4, SW1_5 +23 |
| 1 | TRRRS_Connector | TRRRS_NBA1-24-001 | TRRRS1 |
| 2 | MCP23017_SP | MCP23017_THTasSMD_Singlesided | U_left_1, U_right_1 |
| 31 | SK6812MINI | SK6812MiniE_MX_Addon | LED0_4, LED0_5, LED0_6, LED0_7, LED0_8, LED0_9, LED1_4, LED1_5 +23 |
| 6 | WS2812B | WS2812B_doublesided | LED1, LED2, LED3, LED4, LED5, LED6 |
| 31 | D_Small | Diode_SMD_Round_Pads | D0_4, D0_5, D0_6, D0_7, D0_8, D0_9, D1_4, D1_5 +23 |
KyriousCrab design files
The KiCad project lives in the oceanKeebs/KeebPort repository on GitHub; these links point at the commit this page was built from.
KyriousCrab: common questions
How big is the KyriousCrab PCB?
The KyriousCrab measures 167.7 × 145.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the KyriousCrab?
111 components, from 8 distinct parts. The full bill of materials is listed on this page.
Where can I download the KyriousCrab design files?
From the oceanKeebs/KeebPort repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the KyriousCrab design in my own project?
Yes, under the terms of its GPL-2.0 license, which oceanKeebs chose for the repository.
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