HardLabs

Legshark65 rev2

jemmec·legshark·kicad-files/legshark65_rev2.kicad_pcb

Legshark65 rev2 PCB layout, top view — open source STM32 board by jemmec

About the Legshark65 rev2 PCB

Legshark65 rev2 is an open source STM32 PCB design by jemmec, published on GitHub under the MIT license. It is a 2-layer board measuring 285.8 × 95.3 mm, with 202 components from 34 distinct parts.

Its main chip is the STM32F411, from the STM32 family. Other key parts include the MCP1700T-3302E/TT and AT24C256C-SSHL-T. By type, the board carries 88 LEDs, 15 capacitors, 11 resistors, 3 ICs, 3 connectors and 2 switches.

It belongs with the keyboards designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

An open source 60% (15 by 5) ortholinear keyboard designed with both flexability and familiarity in mind.

An open source 60% (15 by 5) ortholinear keyboard designed with both flexability and familiarity in mind.

- Highly customizable 60% ortho layout - "Plateless" o-ring mounting - 3D printable case - UDB Support

The PCB supports many different layout options for the bottom row, embracing 1u keys but also with some left and right 1.5u modifier options.

The board also supports use of 2u keys in the usual TAB, LSHIFT, DELETE, and ENTER locations to maintain familiarity and speed with these often used modifiers.

Legshark65 rev2, from the project README
From the project README

Main components on the Legshark65 rev2

STM32F411MCP1700T-3302E/TTAT24C256C-SSHL-T

Legshark65 rev2 bill of materials (BOM)

202 components, 34 distinct parts.

QtyPartRefs
1
STM32F411
STM32F411CEU6
STMicroelectronics
U1
1
MCP1700T-3302E/TT
Microchip
U2
1
AT24C256C-SSHL-T
Microchip
U3
1
TAXM8M4RFDCET2T
TAE
Y1
1
ARM JTAG
J1
1
X1224WRS-04-LPV01
XKB Connectivity
J2
1
Conn_01x04
J3
73
1N4148WT
D
ST(Semtech)
D_0, D_1, D_2, D_3, D_4, D_5, D_6, D_7 +65
1
LS Logo
H3
1
KEYSW
K_30
1
K2-1187SQ-A4SW-06
Korean Hroparts
SW1
1
PCM12SMTR
C&K
SW2
1
SM04B-SRSS-TB(LF)(SN)
SM04B-SRSS-TB
JST
T2
71
KEYSW
K_0, K_1, K_2, K_3, K_4, K_5, K_6, K_7 +63
5
KEYSW
K_64, K_72, K_76, K_87, K_88
2
KEYSW
K_65, K_77
3
KEYSW
K_70, K_74, K_84
6
KEYSW
K_75, K_79, K_80, K_83, K_85, K_86
1
KEYSW
K_78
1
B5819W-SL
Changjiang Electronics Tech
D101
Show 14 more
QtyPartRefs
1
KT-0603R
Red
Hubei KENTO Elec
D102
1
GZ2012D601TF
Sunlord
FB1
2
MG15N150J500CT
15p
Walsin Tech Corp
C1, C2
2
GRM155R61H105KE05D
1uF
Murata Electronics
C3, C5
7
FN15B104K500PKG
100n
PSA
C6, C7, C9, C10, C11, C14, C17
1
MT15B103K500CT
10n
Walsin Tech Corp
C12
2
ZRB15XR61A475ME01D
4.7u
Murata Electronics
C13, C15
1
TAJA106K016RNJ
10u
AVX
C16
1
51k
R1
3
SR0402FR-7T100RL
100R
YAGEO
R2, R3, R11
2
RC0402FR-7W100KL
100k
YAGEO
R4, R9
1
1.5k
R5
2
RK73H1ETTP1002D
10k
KOA Speer Elec
R6, R15
2
CQ02WGF4701TCE
4.7k
UNI-ROYAL(Uniroyal Elec)
R7, R8

Legshark65 rev2 design files

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

Legshark65 rev2: common questions

What microcontroller does the Legshark65 rev2 use?

The Legshark65 rev2 is built around the STM32F411, from the STM32 family.

How big is the Legshark65 rev2 PCB?

The Legshark65 rev2 measures 285.8 × 95.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Legshark65 rev2?

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

Where can I download the Legshark65 rev2 design files?

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

Can I use the Legshark65 rev2 design in my own project?

Yes, under the terms of its MIT license, which jemmec chose for the repository.

Can I test firmware for the Legshark65 rev2 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.

More boards in legshark

Earlier revisions in the repo: legshark65_rev1

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