4 layers99 × 53.3 mm
PSLab
fossasia/pslab-hardware
PSLab Hardware Design and Schematics https://pslab.io
199 parts1.7kApache-2.0
2 layers344.2 × 128 mm
PCB New
Bananaking23/CCBK-keybThis is my berry cool 75% keyboard, it has a display, 80 keys, under-key lights, and a rotary encoder. It is powered by a rp2040 plus and uses an mcu23017 as gpio extender
- Size
- 344.2 × 128 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 257
- Nets
- 216
- Pads
- 1,351
- Tracks, vias
- 2,193, 136
- Pours
- 95
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 24 Jan 2026
- Updated
- 29 Mar 2026
Overview
PCB New is an open-source printed circuit board by Bananaking23, from the Bananaking23/CCBK-keyb repository on GitHub. It is a 2-layer board of 344.2 × 128 mm with 257 parts on 216 nets, routed with 2,193 tracks and 136 vias.
It is built around the WS2812B. Its parts include 81 switches, 80 diodes, 3 resistors, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.
Main components
1README
README.mdCCBK-keyb
I have decided to make this keyboard as I currently have a 68% keyboard and it feels bad not have f keys and home and delete, as I like to code and those keys are useful shortcuts. The switches I chose sound great and are relatively cheap. This project also improved my skills as I have only made a PCB ones (the hackpad).
This is my berry cool 75% keyboard, it has a display, 80 keys, under-key lights, and a rotary encoder. It is powered by a rp2040 plus and uses an mcu23017 as gpio extender
Photos
almost full thing
for some reason i couldnt get all the keycaps on
Scematic
Main
Switch Matrix
Led
pcb
Case
Usb-c
Plate
BOM
Link
https://1drv.ms/x/c/3f7de78506c0c654/IQBztQz0UetkR5LsrjEMn85vARuH-ncA3dCGhFmHGj_PK4U?e=rccWr9
#A fter completion
Case
Parts
257| Qty | Value | Footprint | References |
|---|---|---|---|
| 80 | 1N4148 | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24 +64 |
| 80 | WS2812B | LED_SMD:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | e1, e2, e10, e11, e12, e14, e15, e16, e17, e18, e19, e20, e21, e22, e23, e24 +64 |
| 67 | SW_Push | PCM_Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_MX_Plated_1.00u_EDITED | SW1, SW2, SW10, SW11, SW12, SW13, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23, SW24 +51 |
| 5 | SW_Push | PCM_Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_MX_Plated_1.25u | SW58, SW60, SW62, SW74, SW76 |
| 2 | 4.7k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R3 |
| 2 | SW_Push | PCM_Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_MX_Plated_2.25u | SW54, SW57 |
| 2 | SW_Push | PCM_Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_MX_Plated_1.75u | SW30, SW79 |
| 2 | SW_Push | PCM_Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_MX_Plated_1.50u | SW29, SW55 |
| 1 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | MCP23017_SP | Package_DIP:DIP-28_W7.62mm | U1 |
| 1 | OLED | oled:SSD1306-0.91-OLED-4pin-128x32 | J1 |
| 1 | RaspberryPi_Pico | Module:RaspberryPi_Pico_Common_Unspecified | A1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW14 |
| 1 | SW_Push | PCM_Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_MX_Plated_2.00u | SW28 |
| 1 | SW_Push | PCM_Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_MX_Plated_6.25u | SW64 |
The 247 most common of 257 parts.
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Questions
How big is the PCB New PCB?
It measures 344.2 × 128 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PCB New use?
257 parts, built around the WS2812B. 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 PCB New KiCad files?
From the Bananaking23/CCBK-keyb repository on GitHub, at the commit this page was made from: the board is KEYBOARD_DIY/PCB New/pcb.kicad_pcb and its schematic KEYBOARD_DIY/PCB New/KbMatrix.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PCB New design in my own project?
Its repository states no licence, so its author keeps all rights: ask Bananaking23 before reusing the design.