HardLabs

USB-Keyboard

andreili·USB-Keyboard·hw/usb_keyb.kicad_pcb

USB-Keyboard PCB layout, top view — open source STM32 board by andreili

About the USB-Keyboard PCB

USB-Keyboard is an open source STM32 PCB design by andreili, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 99.1 × 99.4 mm, with 107 components from 34 distinct parts.

Its main chip is the STM32F407VETx, from the STM32 family. Other key parts include the LM3671MF, STMPS2161STR, NUP4201MR6 and 74LS245. By type, the board carries 62 resistors, 19 capacitors, 11 connectors, 5 ICs, 3 switches and 3 diodes.

It belongs with the keyboards and retro computing designs in this gallery.

From the project

Adapter for connect a USB keyboards and mouse to retro PC

Main components on the USB-Keyboard

LM3671MFSTM32F407VETxSTMPS2161STRNUP4201MR674LS245

USB-Keyboard bill of materials (BOM)

107 components, 34 distinct parts.

QtyPartRefs
1
LM3671MF
U1
1
STM32F407VETx
U2
1
STMPS2161STR
U3
1
NUP4201MR6
U4
1
74LS245
U5
1
8MHz
Y1
1
Micro_SD_Card
J2
1
USB_1
J3
1
ZX-BUS
J4
1
I2C
J7
1
UART
J8
1
PROG
J9
1
SPI
J10
1
RMII
J11
1
PS2
J12
1
OUT_JMP
J13
1
MTX_JMP
J14
2
DLW21SN371SQ2
FL1, FL2
1
RESET
SW1
1
OUTPUT
SW2
Show 14 more
QtyPartRefs
1
MATRIX
SW3
1
L1
D1
1
L2
D2
1
ERR
D3
1
2.2µH
L1
2
100u
C1, C2
11
100n
C3, C4, C5, C6, C7, C8, C9, C10 +3
1
10uF
C13
2
22pF
C14, C15
1
4,7uF
C17
2
2,2u
C18, C19
57
10k
R1, R2, R3, R4, R5, R6, R7, R8 +49
1
0
R10
4
22
R14, R15, R16, R17

USB-Keyboard design files

The KiCad project lives in the andreili/USB-Keyboard repository on GitHub; these links point at the commit this page was built from.

USB-Keyboard: common questions

What microcontroller does the USB-Keyboard use?

The USB-Keyboard is built around the STM32F407VETx, from the STM32 family.

How big is the USB-Keyboard PCB?

The USB-Keyboard measures 99.1 × 99.4 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the USB-Keyboard?

107 components, from 34 distinct parts. The full bill of materials is listed on this page.

Where can I download the USB-Keyboard design files?

From the andreili/USB-Keyboard repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the USB-Keyboard design in my own project?

Yes, under the terms of its GPL-3.0 license, which andreili chose for the repository.

Can I test firmware for the USB-Keyboard without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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