HardLabs

Gear80-M

cosmosalad·GearSeries·Gear80-M/pcb/Gear80-M.kicad_pcb

Gear80-M PCB layout, top view — open source STM32 board by cosmosalad

About the Gear80-M PCB

Gear80-M is an open source STM32 PCB design by cosmosalad, published on GitHub. It is a 4-layer board measuring 100.8 × 21.8 mm, with 181 components from 11 distinct parts.

Its main chip is the STM32F072C8Tx, from the STM32 family. Other key parts include the XC6206P332MR. By type, the board carries 81 diodes, 10 capacitors, 3 resistors, 2 ICs, 1 connector and 1 fuse.

It belongs with the keyboards and robotics & motion designs in this gallery.

From the project

All Gear series keyboards are being uploaded.

Gear80-M, from the project README
From the project README

Main components on the Gear80-M

XC6206P332MRSTM32F072C8Tx

Gear80-M bill of materials (BOM)

181 components, 11 distinct parts.

QtyPartRefs
1
XC6206P332MR
U2
1
STM32F072C8Tx
U3
1
USB_C_Receptacle_USB2.0
J1
1
SMD0805P050TF
F1
83
MX_SW_HS
MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8 +75
81
D_Small
D1, D2, D3, D4, D5, D6, D7, D8 +73
6
100n
C1, C2, C3, C4, C5, C10
1
4.7u
C6
3
1u
C7, C8, C9
2
5.1k
R1, R2
1
10k
R3

Gear80-M design files

The KiCad project lives in the cosmosalad/GearSeries repository on GitHub; these links point at the commit this page was built from.

Gear80-M: common questions

What microcontroller does the Gear80-M use?

The Gear80-M is built around the STM32F072C8Tx, from the STM32 family.

How big is the Gear80-M PCB?

The Gear80-M measures 100.8 × 21.8 mm, has 4 copper layers and is 1.2 mm thick.

How many components are on the Gear80-M?

181 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the Gear80-M design files?

From the cosmosalad/GearSeries repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Gear80-M design in my own project?

The repository has no license, so all rights stay with cosmosalad. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Gear80-M 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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