4 layers99 × 53.3 mm
PSLab
fossasia/pslab-hardware
PSLab Hardware Design and Schematics https://pslab.io
199 parts1.7kApache-2.0
2 layers69.3 × 111.2 mm
Macropad v2
JackMillen/Macropad-V2-Mini1A PCB-based small form-factor USB keypad with RGB lighting CAUTION: This project is not well designed. This project is not well programmed or commented. This project was not designed for other people to use it. See README for known issues
- Size
- 69.3 × 111.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 49
- Pads
- 224
- Tracks, vias
- 388, 44
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 16 May 2022
- Updated
- 8 Jun 2022
Overview
Macropad v2 is an open-source printed circuit board by JackMillen, from the JackMillen/Macropad-V2-Mini repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 69.3 × 111.2 mm with 48 parts on 49 nets, routed with 388 tracks and 44 vias.
It is built around the WS2812B. Its parts include 26 diodes, 12 switches, 3 connectors and 1 IC. It belongs with the keyboards and input and lEDs and displays boards and the SAM D and SAM boards of this library.
Main components
1README
README.mdMacropad-V2-Mini
What is this?
A PCB-based small form-factor USB keypad with RGB lighting. They keys send a key press (F13-F23) for autohotkey to listen too, then perform the macro.
It consists of 12 Cherry Blue switches, 14 Neopixels, a tiny RP2040 and a custom PCB.
What is the purpose of this project?
A few years ago I made this, a rough USB Macropad with 13 keys and 5 dials. This version has served me well and is perfect for a desktop, but leaves something to be desired when using it with a laptop.
Issues with old version
- Too big to carry in a bag
- Too fragile (The wiring is held together with poor soldering, recycled wire and pure spite)
- The keys are misaligned due to sloppy 3D modelling
- Most of the dials do nothing because I don't use midi devices
- It uses USB Micro-B, not Type-C (which is superior in everyway to lightning)
- It looks ugly
- Not enough RGB
- Handwiring sucks
Features:
- Integrated Neopixels
- Single PCB
- USB C
- Uses Circuit Python
- RGB Animations (Animation Choice persists during power-cycle)
- Low Profile
- Autohotkey Support
- Typewriter Style Keycaps
- Debug pin-headers which allow an external arduino to interface with the PCB for testing
Issues:
- I f***ed up the diode placement on the circuit, just use wire to bridge the contacts and live with the ghost keys
- The RP2040 doesn't have an EEPROM so I need to boot the RP2040 in read-only mode to save the RGB state in flash
- Writing code is easy. Writing code for other people to use and understand is f***ing hard, so I didn't do it. If you are going to make this project, you might want to write your own firmware (But you are welcome to decode mine, GPL 3.0 an' all).
Weird Notes:
- By default the flash is in Read-Only mode so it can store animation states. To access the USB mass storage, hold the top-left button on startup
Parts
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14 |
| 12 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27 |
| 12 | SW_Push | Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12 |
| 6 | MountingHole | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H1, H3, H4, H5, H6, H8 |
| 1 | Columb | Connector_PinHeader_1.27mm:PinHeader_1x03_P1.27mm_Vertical | J2 |
| 1 | LED | Connector_PinHeader_1.27mm:PinHeader_1x03_P1.27mm_Vertical | J1 |
| 1 | Rows | Connector_PinHeader_1.27mm:PinHeader_1x04_P1.27mm_Vertical | J3 |
| 1 | SeeeduinoXIAO | Seeeduino:Seeeduino XIAO-MOUDLE14P-2.54-21X17.8MM | U1 |
Questions
How big is the Macropad v2 PCB?
It measures 69.3 × 111.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Macropad v2 use?
48 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 Macropad v2 KiCad files?
From the JackMillen/Macropad-V2-Mini repository on GitHub, at the commit this page was made from: the board is PCB/KiCad/Macropad v2.kicad_pcb and its schematic PCB/KiCad/Macropad v2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Macropad v2 design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 2 layers26 × 30 mm
Microcontroller
FrameworkComputer/ExpansionCards
Reference designs and documentation to create Expansion Cards for the Framework Laptop
34 parts1.1kCC-BY-4.0 - 4 layers82.6 × 82.5 mm
- 2 layers95.3 × 161.9 mm
- 2 layers42.8 × 28.8 mm
MM Skirt
PrintersForAnts/Micron
If you want to purchase full kits there are 3 available (Kits are slowly updating to R1 hardware just make sure to double check the included hardware in your kit and if you have any questions reach out in the discord)
11 parts741GPL-3.0 - 2 layers149.6 × 127.1 mm
- 2 layers285.5 × 95 mm
- 2 layers177.7 × 144.5 mm
