HardLabs

OpenErgo

ojthetiny·OpenErgo·PCB/kicad/Alice_PCB.kicad_pcb

OpenErgo PCB layout, top view — open source STM32 board by ojthetiny

About the OpenErgo PCB

OpenErgo is an open source STM32 PCB design by ojthetiny, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 337.5 × 123.1 mm, with 95 components from 21 distinct parts.

Its main chip is the STM32F072C8Tx, from the STM32 family. By type, the board carries 1 fuse and 1 LED.

It belongs with the keyboards designs in this gallery.

From the project

Open Source Alice Keyboard

Use as a base for your own designs, renders or order as is (read important info at the bottom).

- Alice layout - Supports OG Alice plate - Chonky external weight - 7.5 degree typing angle. - Flush USB-C connector built into the PCB - Skuf feet. - 3 Piece construction for no external screws (aside from weight)

- I do not offer any sort of warranty for this, nor can I be held liable if something goes wrong. - Renders are not fully representative of the final product - Please, PLEASE look over the design before you do anything with it, it's possible and very likely that there are some errors…

OpenErgo, from the project README
From the project README

OpenErgo bill of materials (BOM)

95 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C221841
SW_SPDT
BOOT1
3
1u
C_LDO1, C_LDO2, C_VDDA2
1
4.7n
C_Shield1
3
100n
C_VDD1, C_VDD2, C_VDDIO2
2
4.7u
C_VDD3, C_VDDIO1
1
10u
C_VDDA1
1
PRTR5V0U2X
D_ESD1
1
RB060MM_60TR
D_LDO1
1
SM9.0CA
D_PWR1
65
D_Small
D_SW_0, D_SW_1, D_SW_2, D_SW_3, D_SW_4, D_SW_5, D_SW_6, D_SW_7 +57
1
500MA
500mA
F1
1
SW_Push
RESET1
2
10k
R_BOOT1, R_RGB1
2
100k
R_LDO1, R_LDO2
3
R_Small
R_LED1, R_LED2, R_LED3
1
1M
R_Shield1
2
5k1
R_USB1, R_USB2
1
HRO-TYPE-C-31-M-12
USB1
1
STM32F072C8Tx
U_MCU1
1
MCP1700-3302E_SOT23
U_Power1
Show 1 more
QtyPartRefs
1
MX-NoLED
MX-0

OpenErgo design files

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

OpenErgo: common questions

What microcontroller does the OpenErgo use?

The OpenErgo is built around the STM32F072C8Tx, from the STM32 family.

How big is the OpenErgo PCB?

The OpenErgo measures 337.5 × 123.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the OpenErgo?

95 components, from 21 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 OpenErgo design files?

From the ojthetiny/OpenErgo 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 OpenErgo design in my own project?

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

Can I test firmware for the OpenErgo 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.

Similar boards