2 layers208.8 × 396.9 mm
Ferris
pierrechevalier83/ferris
A low profile split keyboard designed to satisfy one single use case elegantly
145 parts1.3k
2 layers337.2 × 110.4 mm
ErgoPCB
nyhan-git/ErgoPCBFiles used for ErgoPCB
- Size
- 337.2 × 110.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 157
- Nets
- 111
- Pads
- 852
- Tracks, vias
- 1,085, 39
- Pours
- 526
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 13 Dec 2025
- Updated
- 21 Dec 2025
Overview
ErgoPCB is an open-source printed circuit board by nyhan-git, from the nyhan-git/ErgoPCB repository on GitHub. It is a 2-layer board of 337.2 × 110.4 mm with 157 parts on 111 nets, routed with 1,085 tracks and 39 vias.
It is built around the STM32F072CBT6 and SRV05-4. Its parts include 67 diodes, 9 capacitors, 5 switches, 3 ICs and 2 resistors. 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)
SRV05-4
SOT-23-6L-55℃~+150℃ 15V 1pF 4A 5V 5uA 6V 80W ESD Four channels IEC 61000-4-2、IEC 61000-4-5 Unidirectional SOT-23-6L ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)
Parts
157| Qty | Value | Footprint | References |
|---|---|---|---|
| 67 | D | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +51 |
| 59 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_HS_CPG151101S11_1u | MX1, MX2, MX10, MX11, MX12, MX13, MX14, MX15, MX16, MX18, MX19, MX20, MX21, MX22, MX23, MX24 +43 |
| 6 | 100nF | Capacitor_SMD:C_0402_1005Metric | C4, C5, C6, C7, C8, C10 |
| 4 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_HS_CPG151101S11_1.25u | MX59, MX60, MX61, MX64 |
| 3 | MX_stab | PCM_marbastlib-mx:STAB_MX_2.25u | S2, S3, S4 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 2 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_HS_CPG151101S11_1.75u | MX32, MX58 |
| 2 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_HS_CPG151101S11_1.5u | MX17, MX30 |
| 2 | SW_SPST | Button_Switch_SMD:SW_SPST_TL3342 | BOOT1, RST1 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | Conn_01x04_MountingPin | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J1 |
| 1 | MX_stab | PCM_marbastlib-mx:STAB_MX_2u | S1 |
| 1 | MX_stab | PCM_marbastlib-mx:STAB_MX_2.75u | S5 |
| 1 | SRV05-4 | PCM_marbastlib-various:SOT-23-6-routable | U1 |
| 1 | STM32F072CBT6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U3 |
| 1 | XC6206PxxxMR | Package_TO_SOT_SMD:SOT-23 | U2 |
Questions
How big is the ErgoPCB PCB?
It measures 337.2 × 110.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ErgoPCB use?
157 parts, built around the STM32F072CBT6 and SRV05-4. 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 ErgoPCB KiCad files?
From the nyhan-git/ErgoPCB repository on GitHub, at the commit this page was made from: the board is ErgoPCB.kicad_pcb and its schematic ErgoPCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ErgoPCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask nyhan-git before reusing the design.
Similar boards
- 2 layers229.8 × 102.6 mm
- 2 layers185.3 × 68 mm
- 2 layers293.8 × 104.8 mm
- 2 layers284.7 × 94.2 mm
Frogondola
my-fi-25073/frogondola
frog mini gondola layout keyboard pcb & firmware & plate.
151 parts2GPL-2.0 - 2 layers301.8 × 93.5 mm
- 4 layers25.4 × 25.4 mm
Twonkie
dojoe/Twonkie
A USB-PD sniffer/injector/sink based on Google's Twinkie, re-designed to be manufactured by mere mortals.
62 parts415 - 4 layers95 × 95 mm
Openmicro
conol-ai/openmicrokbd
Open-source recreation of OpenAI's Codex Micro macropad — PCB written in CoHDL, an AI-native hardware description language. Rust firmware (embassy) + companion app (makepad). MIT licensed. https://openmicrokbd.org
88 parts154MIT