2 layers170.2 × 78.7 mm
ROsiM
hkzlab/ROsiM
ROsiM is a ROM simulator/emulator, supporting up to 512k/16bit ROMs
93 parts11GPL-3.0
2 layers65.5 × 87 mm
Macropad
the-projecter/macropad1A custom 3x3 macro pad project based on the Seeed Studio RP2040 microcontroller.
- Size
- 65.5 × 87 mm
- Copper layers
- 2
- Thickness
- 1.66 mm
- Parts
- 39
- Nets
- 36
- Pads
- 121
- Tracks, vias
- 181, 13
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 May 2026
- Updated
- 16 May 2026
Overview
Macropad is an open-source printed circuit board by the-projecter, from the the-projecter/macropad repository on GitHub, published under the MIT licence. It is a 2-layer board of 65.5 × 87 mm with 39 parts on 36 nets, routed with 181 tracks and 13 vias.
It is built around the RP2040, WS2812B and BAT48ZFILM. Its parts include 21 diodes, 9 switches, 2 capacitors, 2 ICs and 1 resistor. It belongs with the keyboards and input boards and the RP2040 boards of this library.
Main components
3
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
BAT48ZFILM
SOD-123-40℃~+150℃ 25uA@40V 350mA 40V 900mV@500mA Independent SOD-123 Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
README
README.mdRP2040 Macro Pad
A custom 3x3 macro pad project based on the Seeed Studio RP2040 microcontroller.
The macro pad features 9 Cherry MX switches, arranged in a 3x3 matrix, a 0.91" OLED display (128x32 px), and 12 WS2812B RGB LEDs for underglow lighting effects.
The firmware is programmed using QMK and includes customizable keymaps, OLED status display support, and RGB lighting effects.
Sponsor
This project is proudly sponsored by NextPCB. NextPCB is my first sponsor and this project was made possible through their support. If you are working on a similar project, then get your first PCB for only 0.1$.
Hardware
-
Seeed Studio RP2040
-
9x Cherry MX switches
-
0.91" OLED display (128x32 px)
-
12x WS2812B RGB LEDs
-
custom designed PCB
Software
-
QMK Firmware
-
Custom keymaps
-
OLED support
-
RGB underglow effects
Finished Project
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21 |
| 9 | BAT48ZFILM | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 9 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_Plate | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 2 | 100uF | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C1, C2 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | OLED Display | 1_MK_library:0.91__OLED_Display | U2 |
| 1 | RP2040 | 1_MK_library:RP2040_MK | U1 |
The 37 most common of 39 parts.
Questions
How big is the Macropad PCB?
It measures 65.5 × 87 mm and has 2 copper layers, 1.66 mm thick.
What parts does the Macropad use?
39 parts, built around the RP2040, WS2812B and BAT48ZFILM. 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 Macropad KiCad files?
From the the-projecter/macropad repository on GitHub, at the commit this page was made from: the board is pcb/macropad.kicad_pcb and its schematic pcb/macropad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Macropad 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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