2 layers130 × 66.1 mm
Macropad
rawoo714/MacroPad-Project
A small Macropad with 13 mx cherry switches, 2 rotary encoders with tactile buttons, and 13 holes for sk6812 RGBs.
60 parts
2 layers159 × 25 mm
Hackbar
udu3324/hackbarHackbar is a macro keys pad in the shape of a bar designed to be placed on the long side of your keyboard. It features 7 switches, an encoder, and two neopixels per key and encoder.
- Size
- 159 × 25 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 33
- Nets
- 30
- Pads
- 134
- Tracks, vias
- 181, 80
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Feb 2026
- Updated
- 10 Mar 2026
Overview
Hackbar is an open-source printed circuit board by udu3324, from the udu3324/hackbar repository on GitHub. It is a 2-layer board of 159 × 25 mm with 33 parts on 30 nets, routed with 181 tracks and 80 vias.
It is built around the SK6812 and PEC11R-4215F-S0024. Its parts include 16 diodes, 7 switches and 1 IC. It belongs with the RP2040 boards of this library.
Main components
2
SK6812
SMD-4P,5.4x5mm-40℃~+85℃ 0.6mA 1.6mm 120° 160mcd~320mcd 1kHz 2000V 280mcd~515mcd 3.7V~5.5V 460nm~470nm 520nm~530nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Built-in power-on reset circuit Semi-transparent lens SMD-4P,5.4x5mm RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
PEC11R-4215F-S0024
插件-30℃~+70℃ 10mA 24/24 5V Incremental Straight Two-phase output 插件 Rotary Encoders ROHSBournsRotary Encoders
README
README.mdhackbar
Hackbar is a macro keys pad in the shape of a bar designed to be placed on the long side of your keyboard. It features 7 switches, an encoder, and two neopixels per key and encoder. It is also inspired by the Google g-board april fools video.
firmware
KMK firmware is used to tell what the mcu sends to the host device when recieving switch inputs.
CAD
The cad can be found on onshape.
Why I Made It
I wanted a macro keyboard that felt like the media control boards used in the a/v industry. They feature toggled leds that are vibrant and bright and look satisfying. I also would like to share this board with some of my friends as its very simple and easy to understand.
How to Use
The Seeed Xiao RP2040 makes flashing code very easy through circuitpython on the usb-c.
Photos
Bill of Materials
| Part | Quantity | On hand | Price |
|---|---|---|---|
| DSA Keycaps | 7 | no | |
| Switches | 7 | no | |
| Rotary Encoder Cap | 1 | no | |
| Rotary Encoder | 1 | no | |
| SK6812 MINI-E LEDs | 16 | no | |
| PCB | no | $9.55 | |
| Seeed XIAO RP2040 | 1 | no | |
| 3d Printed Case | 1 | yes | |
| Hot-swap Socket | 7 | yes |
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | SK6812 | 2_udu_lib:SK6812MINI-E_fixed | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16 |
| 7 | SW_Push | mxfoot:MX-Hotswap-1U | SW1, SW2, SW3, SW4, SW5, SW6, SW7 |
| 2 | LOGO | 1_udu_lib:hackclub | G***, G*** |
| 1 | LOGO | 1_udu_lib:hackbar_back2 | G*** |
| 1 | LOGO | 1_udu_lib:blueprint | G*** |
| 1 | PEC11R-4215F-S0024 | Snapeda:PEC11R-4215F-S0024_XDCR_PEC11R-4215F-S0024 | MT1 |
| 1 | XIAO-RP2040-SMD | 1_udu_lib:XIAO-RP2040-DIP | U1 |
The 29 most common of 33 parts.
Questions
How big is the Hackbar PCB?
It measures 159 × 25 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackbar use?
33 parts, built around the SK6812 and PEC11R-4215F-S0024. 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 Hackbar KiCad files?
From the udu3324/hackbar repository on GitHub, at the commit this page was made from: the board is pcb/hackbar.kicad_pcb and its schematic pcb/hackbar.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hackbar design in my own project?
Its repository states no licence, so its author keeps all rights: ask udu3324 before reusing the design.
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