2 layers
Indicator driver
virtualagc/agc_hardware
Schematics and board layouts for an Apollo Guidance Computer replica
176 parts118MIT
2 layers359 × 130 mm
Keyboard
sidsenthilexe/sids-hackboardTKL keyboard for Hack Club's Hackpad V2!
- Size
- 359 × 130 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 176
- Nets
- 125
- Pads
- 697
- Tracks, vias
- 467, 13
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 20 Mar 2025
- Updated
- 23 Mar 2025
Overview
Keyboard is an open-source printed circuit board by sidsenthilexe, from the sidsenthilexe/sids-hackboard repository on GitHub. It is a 2-layer board of 359 × 130 mm with 176 parts on 125 nets, routed with 467 tracks and 13 vias.
Its parts include 85 diodes, 85 switches and 1 IC. It belongs with the keyboards and input boards and the RP2040 boards of this library.
README
README.mdSid's Hackboard
My hackboard is pretty closely based on my current keyboard (Steelseries Apex 3 TKL) because it fits very well for what I need it to do. Probably could have optimized it more but ran out of time.
I'll probably make some keys macros especially the cluster around Delete.
It also includes a volume knob + a switch for play/pause, skip, and rewind.
This was actually way easier than hackpad because I now use KiCad and Fusion a lot more (even for other projects), but figuring out how to do the integrated plate was a bit annoying, and drafting the edges also took some figuring out.
Anyway I made a (hopefully) functional keyboard.
Key Features:
- Standard TKL layout
- Plate with integrated case
- Magnetic lift bar - totally not copied from s76
- Volume knob
- Probably way too tall but I didn't bother to measure properly
CAD/case:
M3 (M5? idek) bolts and heatset inserts are used to hold the 2 pieces together, and an integrated plate is used to hold the pcb.
PCB:
A matrix is wired to prevent ghosting - the wiring took way too long. There are 84 total keys and one rotary encoder + switch, organized in 17 columns and 6 rows.
Firmware:
KMK was used for the firmware, I still need to figure out how to implement the volume controls though.
BOM:
| ITEM | QTY | PRICE |
|---|---|---|
| Orpheus Pico | 1 | price |
| mx switches | qty | price |
| stabs | qty | price |
| encoder | qty | price |
| 3x10x60mm Magnets | 1 pack of 4 | 5.99 |
| 1N4148 diodes | qty | price |
| keycaps | qty | price |
| bolts | qty | price |
| heatset inserts | qty | price |
Images:
Fully assembled:
Schematic:
PCB:
Case:
Parts
176| Qty | Value | Footprint | References |
|---|---|---|---|
| 85 | Diode | ScottoKeebs_Components:Diode_DO-35 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +69 |
| 66 | Keyswitch | ScottoKeebs_MX:MX_PCB_1.00u | S1, S2, S10, S11, S13, S14, S15, S16, S17, S18, S19, S20, S21, S22, S23, S24 +50 |
| 7 | Keyswitch | ScottoKeebs_MX:MX_PCB_1.25u | S67, S68, S69, S71, S72, S73, S74 |
| 4 | Stabilizer_MX_2.00u | ScottoKeebs_Stabilizer:Stabilizer_MX_2.00u | STAB2U, STAB2U, STAB2U, STAB2U |
| 2 | Keyswitch | ScottoKeebs_MX:MX_PCB_1.50u | S28, S41 |
| 2 | Keyswitch | ScottoKeebs_MX:MX_PCB_2.25u | S54, S55 |
| 1 | E | ScottoKeebs_MX:MX_PCB_1.00u | S80 |
| 1 | K | ScottoKeebs_MX:MX_PCB_1.00u | S12 |
| 1 | Keyswitch | ScottoKeebs_MX:MX_PCB_6.25u | S70 |
| 1 | Keyswitch | ScottoKeebs_MX:MX_PCB_2.00u | S27 |
| 1 | Keyswitch | ScottoKeebs_MX:MX_PCB_1.75u | S42 |
| 1 | Keyswitch | ScottoKeebs_MX:MX_PCB_2.75u | S66 |
| 1 | Raspberry_Pi_Pico | ScottoKeebs_MCU:Raspberry_Pi_Pico | U1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW1 |
| 1 | S | ScottoKeebs_MX:MX_PCB_1.00u | S9 |
| 1 | Stabilizer_MX_6.25u | ScottoKeebs_Stabilizer:Stabilizer_MX_6.25u | STAB625U |
Questions
How big is the Keyboard PCB?
It measures 359 × 130 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Keyboard use?
176 parts. 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 Keyboard KiCad files?
From the sidsenthilexe/sids-hackboard repository on GitHub, at the commit this page was made from: the board is cad/keyboard.kicad_pcb and its schematic cad/keyboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keyboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask sidsenthilexe before reusing the design.
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