4 layers99 × 53.3 mm
PSLab
fossasia/pslab-hardware
PSLab Hardware Design and Schematics https://pslab.io
199 parts1.7kApache-2.0
2 layers275.5 × 105.6 mm
Corne cherry
waffle87/protoncrkbd32Proton-C compatible crkbd PCB
- Size
- 275.5 × 105.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 178
- Nets
- 141
- Pads
- 773
- Tracks, vias
- 1,352, 321
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 8 Aug 2020
- Updated
- 14 Jun 2024
Overview
Corne cherry is an open-source printed circuit board by waffle87, from the waffle87/protoncrkbd repository on GitHub, published under the MIT licence. It is a 2-layer board of 275.5 × 105.6 mm with 178 parts on 141 nets, routed with 1,352 tracks and 321 vias.
It is built around the WS2812B. Its parts include 96 diodes, 44 switches, 5 connectors, 2 resistors and 2 ICs. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdproton-c compatible crkbd pcb
info
changes:
- usart full duplex communication (trrs cable required!)
- move led data to pin with general purpose timer (ADC3-12/B0)
- add piezo buzzer (AST1109MLTRQ)
- add two rotary encoder positions
- add pimoroni trackball support (footprint thanks to MangoIV)
firmware can be found at: v1 (pre-2022) v2 (current) (latest-commit pcbs are currently untested)
parts
| item | count |
|---|---|
| 1N4148 diodes (SOD-123) | 42 |
| SK6812 mini-e leds | 42 |
| WS2812B leds | 12 |
| kailh mx sockets | 42 |
| proton-c or bonsai-c | 2 |
| EC11 rotary encoders | 2 |
| PJ320A trrs jack | 2 |
| reset switch | 2 |
| AST1109MLTRQ speakers | 2 |
| 128x32 oled display | 2 |
| mcu/oled sockets | 2 (40 pos. each, 56 needed) |
| oled socket pins | 1 (40 pos. each, 8 needed) |
| mcu millmax pins alternatively, diode/resistor legs can be used | 48 |
| pimoroni trackball UK EU NA | 1 |
Parts
178| Qty | Value | Footprint | References |
|---|---|---|---|
| 42 | D | kbd:D3_SMD_v2 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +26 |
| 42 | YS-SK6812MINI-E | kbd:YS-SK6812MINI-E | LED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +26 |
| 40 | SW_PUSH | kbd:CherryMX_Hotswap | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW22, SW23, SW24 +24 |
| 14 | Val** | kbd:M2_HOLE_v2 | Ref**, Ref**, Ref**, Ref**, Ref**, Ref**, Ref**, Ref**, Ref**, Ref**, Ref**, Ref**, Ref**, Ref** |
| 12 | WS2812B | Keebio-Parts:WS2812B | D43, D44, D45, D46, D47, D48, D49, D50, D51, D52, D53, D54 |
| 2 | LOGO | silks:bongo | G***, G*** |
| 2 | OLED | kbd:OLED_1side | J2, J4 |
| 2 | ProMicro | kbd:ProMicro_v3 | U1, U2 |
| 2 | R_Small | Buzzer_Beeper:Buzzer_Mallory_AST1109MLTRQ | R3, R4 |
| 2 | Rotary_Encoder_Switch | Keebio-Parts:RotaryEncoder_EC11-no-legs | SW43, SW44 |
| 2 | SW_PUSH | kbd:ResetSW_1side | RSW1, RSW2 |
| 2 | SW_PUSH | kbd:CherryMX_Hotswap_1.5u | SW21, SW42 |
| 2 | TRRS | kbd:MJ-4PP-9_1side | J1, J3 |
| 1 | LOGO | weeb:qmk7fp | G*** |
| 1 | LOGO | silks:waffle2 | G*** |
| 1 | LOGO | silks:waffle | G*** |
| 1 | Trackball | other_parts:pimoroni_left_side_mount | J7 |
The 170 most common of 178 parts.
Questions
How big is the Corne cherry PCB?
It measures 275.5 × 105.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Corne cherry use?
178 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 Corne cherry KiCad files?
From the waffle87/protoncrkbd repository on GitHub, at the commit this page was made from: the board is corne-cherry.kicad_pcb and its schematic corne-cherry.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Corne cherry design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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