4 layers277.2 × 107.5 mm
Katia
ikajdan/katia
A split keyboard with 6 by 3 column staggered keys and 3 thumb keys, based on the Crkbrd design
230 parts33CERN-OHL-P-2.0
2 layers305.9 × 122.3 mm
Hackboard
pizzalover125/hackboard- Size
- 305.9 × 122.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 178
- Nets
- 127
- Pads
- 678
- Tracks, vias
- 1,160, 128
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 24 May 2025
- Updated
- 23 Jul 2025
Overview
Hackboard is an open-source printed circuit board by pizzalover125, from the pizzalover125/hackboard repository on GitHub. It is a 2-layer board of 305.9 × 122.3 mm with 178 parts on 127 nets, routed with 1,160 tracks and 128 vias.
It is built around the RP2040, W25Q128JVSIQ and ABM8-272-T3. Its parts include 75 diodes, 75 switches, 17 capacitors, 6 resistors and 3 ICs. It belongs with 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)
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
ABM8-272-T3
SMD3225-4P-40℃~+85℃ 10pF 12MHz 50Ω SMD crystal oscillator ±30ppm ±30ppm SMD3225-4P Crystals ROHSAbraconCrystals
README
README.mdmini75
75 keys. ultra minimalism. game-changing
BOM
- 75x Cherry MX Red 45g Linear Switches ($39.65 from MechanicalKeyboards.com)
- 107x YMDK 75 Keycaps + 120x Diodes ($35.73 from Amazon.com)
- 1x PCB ($30.41 from JLCPCB)
- 1x Orpheus Pico (FREE from closet)
Total Price: 105.79
Parts
178| Qty | Value | Footprint | References |
|---|---|---|---|
| 75 | D | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +59 |
| 75 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +59 |
| 10 | 100n | Capacitor_SMD:C_0805_2012Metric | C3, C7, C8, C10, C12, C13, C14, C15, C16, C17 |
| 3 | 10u | Capacitor_SMD:C_0805_2012Metric | C1, C2, C6 |
| 3 | R | Resistor_SMD:R_0805_2012Metric | R1, R2, R3 |
| 2 | 15p | Capacitor_SMD:C_0805_2012Metric | C4, C5 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C9, C11 |
| 2 | 27 | Resistor_SMD:R_0805_2012Metric | R5, R6 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | ABM8-272-T3 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | NCP1117-3.3_SOT223 | NCP1117:SOT230P700X180-4N | U2 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_Amphenol_12401548E4-2A | J1 |
| 1 | W25Q128JVS | W25xxxxxx:SOIC127P790X216-8N | U3 |
Questions
How big is the Hackboard PCB?
It measures 305.9 × 122.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackboard use?
178 parts, built around the RP2040, W25Q128JVSIQ and ABM8-272-T3. 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 Hackboard KiCad files?
From the pizzalover125/hackboard repository on GitHub, at the commit this page was made from: the board is PCB/hackboard.kicad_pcb and its schematic PCB/hackboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hackboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask pizzalover125 before reusing the design.
Similar boards
- 4 layers51.8 × 20 mm
Sample target
alvarop/swd2usbc
Have you ever wanted to debug your device over USB-C? Sometimes there's not enough room for a JTAG/SWD connector, or even Tag-Connect pads!
57 parts29CC0-1.0 - 4 layers61.8 × 79.6 mm
- 4 layers40 × 58.5 mm
- 2 layers174 × 111 mm
Pedalboard hw
pedalboard/pedalboard-hw
pedalboard audio midi processor open hardware
169 parts14CERN-OHL-P-2.0 - 2 layers110 × 52 mm
- 2 layers62 × 47 mm
- 2 layers100 × 86 mm
Deflection amp 3
Thinkpad4by3/chibitron
Electrostatic CRT driver designed from the ground up for performance, versatility and ease-of-manufacturability
202 parts6