2 layers157.1 × 131.1 mm
Slimdash
mizma/SlimDash
ErgoDash inspired low-profile key switch keyboard with embedded RP2040
105 partsCC-BY-SA-4.0
2 layers157.1 × 131.4 mm
SlimDash rev1-kicad rounded
mizma/SlimDashErgoDash inspired low-profile key switch keyboard with embedded RP2040
- Size
- 157.1 × 131.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 146
- Nets
- 134
- Pads
- 1,205
- Tracks, vias
- 2,018, 926
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 5 May 2024
- Updated
- 4 May 2025
Overview
SlimDash rev1-kicad rounded is an open-source printed circuit board by mizma, from the mizma/SlimDash repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 157.1 × 131.4 mm with 146 parts on 134 nets, routed with 2,018 tracks and 926 vias.
It is built around the RP2040, W25Q128JVSIQ and SMF05CT1G, with the SN74LVC1T45DRL, TLV73333PDBV and SK6812MINI-E among its other parts. Its parts include 70 diodes, 35 switches, 18 capacitors, 7 resistors and 5 ICs. It belongs with the keyboards and input boards and the RP2040 boards of this library.
Main components
6
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
SMF05CT1G
SOT-363-55℃~+125℃ 100W 100nA 10V 1A 30pF 5 5V 6V IEC 61000-4-2、IEC 61000-4-4 TVS SOT-363 ESD and Surge Protection (TVS/ESD) ROHSGOODWORKESD And Surge Protection (TVS/ESD)
SN74LVC1T45DRL
SOT-5x3-6-40℃~+85℃ 1 1 1.65V~5.5V 1.65V~5.5V 420Mbps Auto Direction Detection、Power-Off Protection Bidirectional CMOS CMOS Tri-State SOT-5x3-6 Translators, Level Shifters ROHSTexas InstrumentsTranslators / Level Shifters
TLV73333PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 125mV@(300mA) 28uVrms 3.3V 300mA 34uA 5.5V 50dB@(1kHz) Fixed Positive Under Voltage Lockout、Over Current Protection、Over Temperature Protection、Enable SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SK6812MINI-E
SMD-40℃~+85℃ 0.6mA 1.78mm 120mcd~240mcd 120° 160mcd~320mcd 1kHz 2.8mm 2000V 3.2mm 3.7V~5.5V 460nm~470nm 515nm~525nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Semi-transparent lens SMD RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
README
README.mdSlimDash
ErgoDash inspired low-profile key switch keyboard with embedded RP2040
Features
- Ortho-Staggered Split keyboard layout
- Slim body (20-22mm depending on key caps and rubber feet used)
- Rigid body structure
- Per-Key RGB LED Matrix lighting
- USB-C connector
- Easy build utilizing PCBA service
- Hand Soldering needed:
- 70 x Kailh choc v1 hotswap sockets
- 4 x tactile switches (2 x BOOT is optional)
- 2 x trrs jack
- 70 SK6812MINI-E (optional for RGB matrix)
- Assembly
- Just PH001 Philips screws necessary
- Hand Soldering needed:
Variations
Currently there is only one variation.
- SlimDash rev.1
- See the readme in the hardware-rev1 directory for build instructions.
- For firmware, see the release section for pre-built firmware,
or see here for the build source.
- To build from source, follow the instructions and copy the keyboard sources from this repo (until the keyboard is merged upstream) to build.
Acknowlegements
- ErgoDash by omkbd
- Inspiration for this keyboard
- ergogen
- Tooling to assist in the key layout and mechanical design
- Tutorials to get me started with ergogen
- Tools used for making
keyboard.jsonless tedious.
License
SlimDash by
mizma is licensed under
Creative Commons Attribution-ShareAlike 4.0 International
-
-
Parts
146| Qty | Value | Footprint | References |
|---|---|---|---|
| 35 | D | Diode_SMD:D_SOD-123F | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +19 |
| 35 | SK6812MINI-E | mzm_misc:SK6812-MINI-E_Reversible | LED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +19 |
| 35 | SW_Push | daprice_keyswitches:Kailh_socket_PG1350_reversible | S1, S2, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20, S21, S22, S23 +19 |
| 10 | 100n | Capacitor_SMD:C_0402_1005Metric | C1, C4, C6, C7, C9, C12, C13, C14, C15, C16 |
| 4 | 1u | Capacitor_SMD:C_0402_1005Metric | C2, C3, C5, C10 |
| 3 | JLCPCB_Tooling | mzm_misc:JLCPCB_Tooling | TOOLING, TOOLING, TOOLING |
| 2 | 10u | Capacitor_SMD:C_0402_1005Metric | C17, C18 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R4 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 2 | 30p | Capacitor_SMD:C_0402_1005Metric | C8, C11 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R7, R9 |
| 2 | AudioJack4 | mzm_misc:TRRS_jack | J1, J2 |
| 2 | SW_PUSH | mzm_misc:SW_Tactile_Yushakobo 3x6x4.3mm | SW_BOOT1, SW_RST1 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | Choc | mzm_misc:Kailh-PG1350-2u-stabilizer | Kailh PG1350_2U Stabilizer |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | HRO-TYPE-C-31-M-12 | mzm_LCSC:USB-C_SMD-TYPE-C-31-M-12 | USB1 |
| 1 | RP2040 | RP2040:RP2040-QFN-56 | U2 |
| 1 | SMF05CT1G | Keebio-Parts:SOT-363_SC-70-6 | U4 |
| 1 | SN74LVC1T45DRL | mzm_LCSC:SOT-563_SN74LVC1T45DRLR | U5 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | TLV73333PDBV | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U3 |
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Questions
How big is the SlimDash rev1-kicad rounded PCB?
It measures 157.1 × 131.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SlimDash rev1-kicad rounded use?
146 parts, built around the RP2040, W25Q128JVSIQ, SMF05CT1G and SN74LVC1T45DRL. 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 SlimDash rev1-kicad rounded KiCad files?
From the mizma/SlimDash repository on GitHub, at the commit this page was made from: the board is hardware-rev1/design_data/SlimDash-rev1-kicad/SlimDash-rev1-kicad-rounded.kicad_pcb and its schematic hardware-rev1/design_data/SlimDash-rev1-kicad/SlimDash-rev1-kicad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SlimDash rev1-kicad rounded design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).