4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers92.2 × 80.9 mm
Cool deck
0723kev/macropadMy cool macropad for Blueprint Hackclub
- Size
- 92.2 × 80.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 37
- Nets
- 43
- Pads
- 164
- Tracks, vias
- 432, 51
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 29 Dec 2025
- Updated
- 1 Jan 2026
Overview
Cool deck is an open-source printed circuit board by 0723kev, from the 0723kev/macropad repository on GitHub, published under the MIT licence. It is a 2-layer board of 92.2 × 80.9 mm with 37 parts on 43 nets, routed with 432 tracks and 51 vias.
It is built around the SK6812MINI-E. Its parts include 18 diodes, 10 switches, 2 resistors, 2 ICs and 1 connector. It belongs with the keyboards and input and lEDs and displays boards and the RP2040 boards of this library.
Main components
1README
README.mdKev's Macropad - The Hybrid Macropad
This is my custom 10-key (8 MX, 2 encoder) mechanical macropad that has dual rotary encoders, per-key RGB lighting, and an OLED status screen. It is powered by the XIAO RP2040 and an MCP23008 I/O expander to make sure that I can do as much as I can on this board with such a small footprint.
Images
Schematic
PCB
Assembly
Exploded Assembly
Firmware
Firmware made using KMK
BOM
*denotes a part not included in the hackpad kit. I will supply them.
| Part | Qty | Description | Remarks |
|---|---|---|---|
| MCU | 1 | Xiao RP2040 | |
| Expander | 1 | MCP23008 | * |
| Switches | 8 | MX-style CLEAR mechanical switches | |
| Keycaps | 8 | DSA or XDA Profile (1u) | |
| Display | 1 | 0.91" OLED 12C | Pinout GND-VCC-SDL-SDA |
| LEDs | 8 | SK6812 MINI-E | Reverse-mount |
| Resistors | 2 | 2.2kΩ or 4.7kΩ | * I2C Pull-ups |
| Diodes | 10 | 1N4148 | Through-hole |
| Hardware | 4 | M3 x 16mm Screws | Case |
| Hardware | 4 | M3 Heatset Inserts | 5mm x 4mm |
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 |
| 8 | SK6812MINI | SK6812-E:LED_SK6812-E | D11, D12, D13, D14, D15, D16, D17, D18 |
| 8 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 |
| 2 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2 |
| 2 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW9, SW10 |
| 1 | MCP23008-xP | Package_DIP:DIP-18_W7.62mm | U2 |
| 1 | OLED | OLED:SSD1306-0.91-OLED-4pin-128x32 | J1 |
| 1 | XIAO-RP2040-DIP | OPL:XIAO-RP2040-DIP | U1 |
The 33 most common of 37 parts.
Questions
How big is the Cool deck PCB?
It measures 92.2 × 80.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cool deck use?
37 parts, built around the SK6812MINI-E. 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 Cool deck KiCad files?
From the 0723kev/macropad repository on GitHub, at the commit this page was made from: the board is PCB/Cool deck.kicad_pcb and its schematic PCB/Cool deck.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cool deck design in my own project?
Its repository publishes it under the MIT 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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