https://github.com/headblockhead/slab-pcb

The circuitboard and schematics for the slab keyboard.
https://github.com/headblockhead/slab-pcb

keyboard kicad kicad-project slab-keyboard

Last synced: about 1 month ago
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The circuitboard and schematics for the slab keyboard.

• Host: GitHub
• URL: https://github.com/headblockhead/slab-pcb
• Owner: headblockhead
• License: cc0-1.0
• Created: 2024-05-25T20:02:47.000Z (7 months ago)
• Default Branch: main
• Last Pushed: 2024-10-20T18:40:31.000Z (2 months ago)
• Last Synced: 2024-10-20T23:01:43.814Z (2 months ago)
• Topics: keyboard, kicad, kicad-project, slab-keyboard
• Homepage:
• Size: 15 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Slab PCB

The full circuitboard and schematics for the [Slab keyboard project](https://github.com/headblockhead/slab).

![The PCB](https://github.com/user-attachments/assets/ca80b5f5-c5eb-4f25-88ec-4695488eec44)

## Supplies

- Solder

- Soldering Iron (Preferably with a wedge shape tip when soldering SMD)

- Desoldering Braid (lifesaver for SMD soldering by hand)

- Flux Pen (Can help with soldering SMD components)

- ['Adjustable Helping Hand with Magnifying Glass'](https://www.amazon.co.uk/01902-Adjustable-Magnifying-Soldering-Alligator/dp/B000P42O3C?th=1) or other magnification solution

- Good lighting! - A very bright light or sunlight through a window.

- Electronics tweezers (Good for holding parts steady)

## BOM

| Part Usage | Part Number | LCSC Number | # Needed | # Suggested | Cost/Unit ($) | Cost/Total ($) | Relative soldering difficulty / 5 | Notes

|---|---|---|---|---|---|---|---|---|

|Logic level shifter|SN74AHCT125PWR|C36365|1|10|$0.1934|$1.93|4|Order more spares if new to SMD soldering|

|I²C IO expander|PCA9555PW|C128392|1|6|$1.1774|$7.06|5|Order more spares if new to SMD soldering|

|Addresable RGB LEDs|SK6812MINI-E|C5378731|90|110|$0.1276|$14.04|3|Easy to burn out if soldered too hot/rough|

|I²C pullup resistors|Generic: 1206 2.2kΩ resistor|C17948|2|100|$0.0028|$0.28|2||

|Decoupling capcaitors|Generic: 1206 10uF capacitor|C513774|92|120|$0.0248|$2.98|2|Careful: Easy to accidently order the wrong size|

|Rotary encoder with switch|EC11E15244B2|C470754|1|2|$1.7755|$3.55|1|Order more if you want - these are great!|

|Key diodes|Generic: SOD-123 diode|C393516|75|100|$0.0115|$1.15|3||

|I²C OLED 128x32|SSD1306|C5248081|1|3|$2.0128|$6.04|2|Useful in other projects + headers required.|

|Kailh hotswap MX switch sockets|CPG151101S11-16|C5156480|75|80|$0.1243|$7.94|1||

|**TOTAL**|||338|531||$44.97|||

## Used libraries

### External

- [marbastlib](https://github.com/ebastler/marbastlib)

### Included

- [CustomFootprints.pretty](CustomFootprints.pretty/)

- [CustomSymbols](CustomSymbols.kicad_sym)