4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers90.2 × 55 mm
Custom Macropad
ericoletsgo/Custom-MacropadA 6 key macropad with a rotary encoder, 0.91 inch OLED display, and per key RGB lighting.
- Size
- 90.2 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 26
- Pads
- 94
- Tracks, vias
- 293, 56
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 24 Jan 2025
- Updated
- 2 Jun 2026
Overview
Custom Macropad is an open-source printed circuit board by ericoletsgo, from the ericoletsgo/Custom-Macropad repository on GitHub. It is a 2-layer board of 90.2 × 55 mm with 24 parts on 26 nets, routed with 293 tracks and 56 vias.
It is built around the SK6812MINI-E. Its parts include 13 diodes, 7 switches, 1 IC 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.mdCustom Macropad
A 6 key macropad with a rotary encoder, 0.91 inch OLED display, and per key RGB lighting.
Features
- 6 Cherry MX mechanical switches in a 2x3 grid
- 6 SK6812MINI-E reverse-mount RGB LEDs
- EC11 rotary encoder; volume control and mute
- 128x32 SSD1306 OLED display over I2C
- Powered by XIAO RP2040
- QMK firmware
PCB
Designed in KiCad. Two layer board with front and back copper.
Schematic:
PCB Layout:
Case
OrpheusPad inspired case design, modified for the 2x3 key layout. Modeled in Fusion 360.
Firmware
Uses QMK firmware.
- Rotary encoder controls volume (rotate) and mute (press)
- Arrow key layout with comma and period
- OLED displays current layer
- RGB underglow on all 6 keys
BOM
- 6x Cherry MX Switches
- 6x Keycaps
- 6x 1N4148 DO-35 Diodes
- 6x SK6812MINI-E RGB LEDs
- 1x 0.91" 128x32 OLED Display
- 1x EC11 Rotary Encoder
- 1x Seeed XIAO RP2040
- 1x 4-pin header (for OLED)
- 1x 3D printed case
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | D | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D2, D3, D4, D5, D6, D7, D9 |
| 6 | SK6812MINI-E | footprints:SK6812MINI-E_fixed | D8, D9, D10, D11, D12, D13 |
| 6 | SW_Push_45deg | MX_Solderable:MX-Solderable-1U | SW1, SW2, SW3, SW4, SW5, SW6 |
| 1 | LOGO | LOGO | G*** |
| 1 | OLED_DISPLAY | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW9 |
| 1 | Seeed Studio XIAO RP2040 | Seeed Studio XIAO Series Library:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U2 |
The 23 most common of 24 parts.
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Questions
How big is the Custom Macropad PCB?
It measures 90.2 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Custom Macropad use?
24 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 Custom Macropad KiCad files?
From the ericoletsgo/Custom-Macropad repository on GitHub, at the commit this page was made from: the board is pcb/Custom_macropad.kicad_pcb and its schematic pcb/Custom_macropad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Custom Macropad design in my own project?
Its repository states no licence, so its author keeps all rights: ask ericoletsgo before reusing the design.