HardLabs

X88-HW

cBachoo·X88-HW

X88-HW PCB layout, top view — open source STM32 board by cBachoo
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About the X88-HW PCB

X88-HW is an open source STM32 PCB design by cBachoo, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 344 × 124.1 mm, with 120 components from 20 distinct parts.

Its main chip is the STM32F072CBT6, from the STM32 family. Other key parts include the XC6206P332MR-G. By type, the board carries 92 diodes, 11 capacitors, 3 resistors, 2 ICs, 2 LEDs and 1 connector.

It belongs with the keyboards designs in this gallery.

From the project

Multi-layout TKL PCB

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

You are free to produce, modify, manufacture, and distribute this design, including for commercial purposes, provided you give appropriate credit and license any derivative works under the same terms.

Questions? Contact Bachoo (bachoobusiness[at]gmail.com).

[cc-by-sa]: http://creativecommons.org/licenses/by-sa/4.0/ [cc-by-sa-image]: https://licensebuttons.net/l/by-sa/4.0/88x31.png [cc-by-sa-shield]: https://img.shields.io/badge/License-CC%20BY--SA%204.0-lightgrey.svg

Main components on the X88-HW

XC6206P332MR-GSTM32F072CBT6

X88-HW bill of materials (BOM)

120 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XC6206P332MR-G
XC6206P332MR
U1
1
STM32F072CBT6
U2
1
SM04B-SRSS-TB(LF)(SN)
SM04B-SRSS-TB
J1
1
CL05A106MQ5NUNC
10uF
CR1
1
CL05A105KA5NQNC
1uF
CR2
1
nSMD050
500mA
F1
1
2N7002
QR1
1
0402WGF3302TCE
33k
RR1
1
0402WGF1002TCE
10k
RR2
1
0402WGF1003TCE
100k
RR3
1
TS-1187A-B-A-B
SWR1
1
TYPE-C-31-M-12
USB_C_Receptacle_USB2.0_16P
USB1
2
SK6812MINI-E
RGB1, RGB2
1
PRTR5V0U2X
D1
91
1N4148W
D2, D3, D4, D5, D6, D7, D8, D9 +83
2
CL05A475MP5NRNC
4.7uF
C1, C8
6
CL05B104KO5NNNC
100nF
C2, C3, C7, C9, C10, C11
3
CL05A105KA5NQNC
1uF
C4, C5, C6
2
0402WGF5101TCE
5k1
R1, R2
1
0402WGF4701TCE
4k7
R3

X88-HW design files

The KiCad project lives in the cBachoo/X88-HW repository on GitHub; these links point at the commit this page was built from.

X88-HW: common questions

What microcontroller does the X88-HW use?

The X88-HW is built around the STM32F072CBT6, from the STM32 family.

How big is the X88-HW PCB?

The X88-HW measures 344 × 124.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the X88-HW?

120 components, from 20 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the X88-HW design files?

From the cBachoo/X88-HW repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the X88-HW design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which cBachoo chose for the repository.

Can I test firmware for the X88-HW 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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