4 layers227.3 × 85 mm
Le capybara
sporkus/le_capybara_keyboard
Capactive sensing (EC) pcb for Le Chiffre keyboard
118 parts58CERN-OHL-W-2.0
2 layers214.4 × 97.4 mm
Sprig
sbkeebs/sprigjust a lil sprig
- Size
- 214.4 × 97.4 mm
- Copper layers
- 2
- Thickness
- 1.2 mm
- Parts
- 97
- Nets
- 84
- Pads
- 511
- Tracks, vias
- 661, 76
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 26 Jul 2024
- Updated
- 27 Jul 2024
Overview
Sprig is an open-source printed circuit board by sbkeebs, from the sbkeebs/sprig repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 214.4 × 97.4 mm with 97 parts on 84 nets, routed with 661 tracks and 76 vias.
It is built around the STM32F072CBT6 and PRTR5V0U2X. Its parts include 36 diodes, 36 switches, 10 capacitors, 4 resistors and 3 ICs. It belongs with the STM32 boards of this library.
Main components
2
STM32F072CBT6
LQFP-48(7x7)-40℃~+85℃ 1.65V~3.6V 128KB 12bit 12bit 16KB 32 Bit 37 48MHz ARM Cortex-M0 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
PRTR5V0U2X
SOT-143-55℃~+125℃ 0.3pF、0.8pF 100W 10V、15V 5V 6.5V 6A 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
README
README.md
★ 10 columns in a modified Katana layout
★ inner columns are moved down a bit for an ergo-light curve
★ spacebar layout supports ISO enter for either or both bars
This repo should contain:
- KiCAD 8 files for the PCB
- production files (gerbers, JLC BOM, CPL, etc) -- definitely double check the part numbers/availability before committing to fabrication!
- printable files for the case (i am not very experienced in 3D design, but i have confirmed that it works!)
- firmware in both qmk/vial and zmk, and source for each
To build your own zmk keymap
Fork this repo, and enable Actions. Modify config/boards/arm/sprig/sprig.keymap. Let it build (click Actions at the top of your repo).
ZMK Studio is not yet integrated!
This was built upon NCKiser's STM32F072 template as one of my first projects with an integrated MCU. If you'd like to get started with your own keyboard, this video is a great place to start.
Parts
97| Qty | Value | Footprint | References |
|---|---|---|---|
| 36 | D_Small | PCM_marbastlib-various:D_SOD-323 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +20 |
| 36 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_HS_CPG151101S11_1u | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +20 |
| 7 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C3, C4, C5, C6, C7, C8 |
| 4 | 5.1k | Resistor_SMD:R_0402_1005Metric | R1, R2, R3, R4 |
| 4 | LOGO | LOGO | G***, G***, G***, G*** |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C9, C10 |
| 2 | SW_SPST | Button_Switch_SMD:SW_SPST_TL3342 | BOOT1, RST1 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | PRTR5V0U2X | Package_TO_SOT_SMD:SOT-143 | U2 |
| 1 | STM32F072CBT6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | XC6206PxxxMR-Regulator_Linear | Package_TO_SOT_SMD:SOT-23 | U3 |
Questions
How big is the Sprig PCB?
It measures 214.4 × 97.4 mm and has 2 copper layers, 1.2 mm thick.
What parts does the Sprig use?
97 parts, built around the STM32F072CBT6 and PRTR5V0U2X. 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 Sprig KiCad files?
From the sbkeebs/sprig repository on GitHub, at the commit this page was made from: the board is pcb/sprig.kicad_pcb and its schematic pcb/matrix.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sprig design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 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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