HardLabs

Louise

joshajohnson·louise·hardware/0.2/keyboard.kicad_pcb

Louise PCB layout, top view — open source STM32 board by joshajohnson

About the Louise PCB

Louise is an open source STM32 PCB design by joshajohnson, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 429.6 × 146.5 mm, with 319 components from 33 distinct parts.

Its main chip is the STM32F303RBT6, from the STM32 family. Other key parts include the XC6206P332MR. By type, the board carries 136 diodes, 129 switches, 36 capacitors, 7 resistors, 3 ICs and 3 transistors.

It belongs with the keyboards designs in this gallery.

From the project

A project between Josh and RiotPunch to build a 75% alice keyboard with a southpaw numpad.

A project between Josh and RiotPunch to build a 75% alice keyboard with a southpaw numpad.

All the PCB files, case dxfs, and QMK firmware required to build your own are located in this repo.

Louise, from the project README
From the project README

Main components on the Louise

XC6206P332MRSTM32F303RBT6

Louise bill of materials (BOM)

319 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XC6206P332MR
SRV05-4
ProTek Devices
U1
1
XC6206P332MR
Torex Semicon
U2
1
STM32F303RBT6
STMicroelectronics
U3
1
2N7002
Changjiang Electronics Tech (CJ)
Q1
2
DDTC123JCA-7-F
DTC123J
Diodes Incorporated
Q2, Q3
1
TAXM8M4RFDCET2T
8MHz
TAE(Zhejiang Abel Elec)
Y1
1
TYPE-C-31-M-12
USB_C_Receptacle_USB2.0
Korean Hroparts Elec
J1
1
SPARE
J3
1
PKMCS0909E
Buzzer
Murata Electronics
BZ1
1
SMD0805-050
500mA
TECHFUSE
F1
2
RotaryEncoder_Switch
SW1, SW124
97
KEYSW
SW2, SW4, SW5, SW6, SW8, SW10, SW11, SW12 +89
3
KEYSW
SW3, SW7, SW120
5
KEYSW
SW9, SW22, SW23, SW30, SW55
6
KEYSW
SW31, SW37, SW42, SW63, SW84, SW128
2
KEYSW
SW32, SW116
6
KEYSW
SW35, SW38, SW48, SW90, SW106, SW121
2
KEYSW
SW36, SW117
3
KEYSW
SW49, SW71, SW129
1
KMR231GLFS
KMR2
C&K
SW57
Show 13 more
QtyPartRefs
1
KEYSW
SW70
1
KEYSW
SW77
113
1N4148W
1N4148
Semtech
D1, D2, D3, D4, D5, D6, D11, D12 +105
18
WS2812B-B/W
WS2812B
Worldsemi
D7, D8, D9, D10, D17, D18, D19, D20 +10
4
SK6812-MINI-E
Shenzhen LED Color
D44, D46, D52, D60
1
19-217/BHC-ZL1M2RY/3T
BLUE
Everlight Elec
D97
27
CC0603KRX7R9BB104
100n
YAGEO
C1, C2, C3, C4, C5, C6, C8, C9 +19
6
CL10A475KO8NNNC
4u7
Samsung Electro-Mechanics
C7, C12, C15, C24, C28, C29
1
CL10A106MA8NRNC
10u
Samsung Electro-Mechanics
C25
2
CL10C150JB8NNNC
15p
Samsung Electro-Mechanics
C26, C27
5
0603WAF5101T5E
5K1
UNI-ROYAL(Uniroyal Elec)
R1, R2, R3, R4, R6
1
0603WAF1003T5E
100K
UNI-ROYAL(Uniroyal Elec)
R5
1
0603WAF1501T5E
1K5
UNI-ROYAL(Uniroyal Elec)
R7

Louise design files

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

Louise: common questions

What microcontroller does the Louise use?

The Louise is built around the STM32F303RBT6, from the STM32 family.

How big is the Louise PCB?

The Louise measures 429.6 × 146.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Louise?

319 components, from 33 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 Louise design files?

From the joshajohnson/louise 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 Louise design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which joshajohnson chose for the repository.

Can I test firmware for the Louise 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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