2 layers116.9 × 100 mm
STM32H7B0 devboard
MarijnVerschuren/STM32H7B0_devboard
micro devboard featuring the STM32H750VBT6
116 partsMIT
4 layers42 × 62.5 mm
Keyboard PCB
MarijnVerschuren/Keyboard1Custom 65% keyboard PCB featuring the STM32H750VBT6
- Size
- 42 × 62.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 101
- Nets
- 94
- Pads
- 457
- Tracks, vias
- 630, 373
- Pours
- 22
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 24 Jun 2023
- Updated
- 1 Aug 2026
Overview
Keyboard PCB is an open-source printed circuit board by MarijnVerschuren, from the MarijnVerschuren/Keyboard repository on GitHub, published under the MIT licence. It is a 4-layer board of 42 × 62.5 mm with 101 parts on 94 nets, routed with 630 tracks and 373 vias.
It is built around the ISL91127IRNZ-T, W25Q128JVSIQ and MCP73833, with the USBLC6-2SC6, BAT54C and EC11E15244G1 among its other parts. Its parts include 27 capacitors, 26 resistors, 11 diodes, 7 ICs and 5 connectors. It belongs with the keyboards and input boards and the STM32 boards of this library.
Main components
7
ISL91127IRNZ-T
QFN-20(4x4)-40℃~+85℃@(TA) 1 1.8V~5.5V 2.5MHz 2A 3.3V Buck-Boost Buck-Boost Built-in Fixed Yes QFN-20(4x4) DC-DC Converters ROHSRenesas ElectronicsDC-DC Converters
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
MCP73833
UncategorisedMicrochip Technology
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
BAT54C
SOT-231 Pair Common Cathode 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-23 Schottky Diodes ROHSNexperiaSchottky Diodes
EC11E15244G1
插件插件 Rotary Encoders ROHSALPSALPINERotary EncodersS8050
SOT-23-55℃~+150℃ 1 NPN 100MHz 100nA 120 25V 300mW 500mA 5V 600mV NPN SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
README
README.mdKeyboard
Custom keyboard PCB featuring the STM32F412
Parts
101| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R8, R12, R22, R23, R26, TH1, TH2 |
| 7 | 100n | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5, C6, C8, C10, C12 |
| 6 | 470 | Resistor_SMD:R_0603_1608Metric | R9, R10, R11, R13, R14, R15 |
| 4 | 12p | Capacitor_SMD:C_0603_1608Metric | C28, C29, C30, C35 |
| 4 | 1u | Capacitor_SMD:C_0603_1608Metric | C20, C21, C22, C23 |
| 4 | 22u | Capacitor_SMD:C_0603_1608Metric | C15, C16, C18, C19 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H1, H2, H3, H4 |
| 3 | 10n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C9 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C14, C17 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R24, R27 |
| 2 | 1u | Inductor_SMD:L_0805_2012Metric | L2, L3 |
| 2 | 47 | Resistor_SMD:R_0603_1608Metric | R29, R30 |
| 2 | 4u7 | Capacitor_SMD:C_0603_1608Metric | C7, C11 |
| 2 | 5k1 | Resistor_SMD:R_0603_1608Metric | R7, R25 |
| 2 | BAT54C | Package_TO_SOT_SMD:SOT-23 | D4, D5 |
| 2 | BTN | Button_Switch_SMD:SW_SPST_PTS810 | SW3, SW4 |
| 2 | ISL91127IR | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.7x2.7mm_ThermalVias | U2, U4 |
| 2 | MCP73833 | Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.58x2.35mm | U5, U6 |
| 2 | PG | LED_SMD:LED_0603_1608Metric | D8, D11 |
| 2 | STAT1 | LED_SMD:LED_0603_1608Metric | D6, D9 |
| 2 | STAT2 | LED_SMD:LED_0603_1608Metric | D7, D10 |
| 1 | 10u | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 25MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 2u2 | Capacitor_SMD:C_0603_1608Metric | C13 |
| 1 | 32.768 KHz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y2 |
| 1 | 3V3 | TestPoint:TestPoint_Pad_D1.5mm | TP2 |
| 1 | 5V | TestPoint:TestPoint_Pad_D2.0mm | TP1 |
| 1 | 5v1 | Diode_SMD:D_SOD-123 | D3 |
| 1 | 6V/2A | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | 8R2 | Resistor_SMD:R_0603_1608Metric | R28 |
| 1 | APP | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BT1 |
| 1 | BKUP | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BT2 |
| 1 | BTN | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW2 |
| 1 | EC11E15244G1 | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW1 |
| 1 | FPC 30 | Marijn_KiCad:SMD_FPC30 | J4 |
| 1 | I2C_LCD | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | JTAG | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | LCD_MODULE | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J3 |
| 1 | PWR | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | PWR_LED | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1 |
| 1 | S8050 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | STATUS | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | STM32F412CGUx | Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U1 |
| 1 | TDK ACM2012-900 | ACM2012_900_2P_T002:ACM2012_TDK | FL1 |
| 1 | USB-C 16P | Connector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J2 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | VBAT_BYP | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP3 |
| 1 | Vbat | TestPoint:TestPoint_Pad_D1.5mm | TP3 |
| 1 | W25Q128JVS | Marijn_KiCad:SOIC-8_W25QxJVS | U7 |
| 1 | WKUP_EXTI | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP2 |
The 100 most common of 101 parts.
Similar boards
- 6 layers131 × 80 mm
OpenHardwareHolterMonitor
OpenElectronicsLab/OpenHardwareHolterMonitor
OpenHardware ECG Holter Monitor
165 parts9GPL-3.0 - 4 layers130 × 90 mm
- 4 layers100 × 80 mm
Pd brick
enkhbold470/pd-brick
USB-C Power Delivery bench supply: STUSB4500 sink, LM5176 buck-boost, INA228 monitor, 1.2-22 V set over I2C by an ESP32-S3. 4-layer KiCad 10 board.
120 partsCERN-OHL-S-2.0 - 2 layers70 × 151 mm
Dm50
xavierbasc/dm50
DM50 is a cheap, powerful, easy to build, open source hardware, and high precision calculator.
131 parts38GPL-3.0 - 4 layers50 × 70 mm
Stm32-portable data logger
copperheadhq/copperhead-stm32-data-logger
Portable STM32L433 data logger, 50 × 70 mm, four layers, microSD, USB-C LiPo charging. Designed with copperhead. Never built: do not order expecting it to work.
90 parts3 - 4 layers101.6 × 101.6 mm
Avionus Flight Controller
leptun/Avionus_Flight_Controller
Controller board for autonomous RC plane
287 parts1GPL-3.0 - 4 layers100 × 100 mm
Questions
How big is the Keyboard PCB PCB?
It measures 42 × 62.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Keyboard PCB use?
101 parts, built around the ISL91127IRNZ-T, W25Q128JVSIQ, MCP73833 and USBLC6-2SC6. 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 Keyboard PCB KiCad files?
From the MarijnVerschuren/Keyboard repository on GitHub, at the commit this page was made from: the board is Keyboard_PCB/Keyboard_PCB.kicad_pcb and its schematic Keyboard_PCB/Keyboard_PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keyboard PCB 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).