HardLabs

Logic

LJBoxx·Baguette-esc·hardware/gerber/logic/logic.kicad_pcb

Logic PCB layout, top view — open source STM32 board by LJBoxx

About the Logic PCB

Logic is an open source STM32 PCB design by LJBoxx, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 60.5 × 60.7 mm, with 151 components from 57 distinct parts.

Its main chip is the STM32F405RGTx, from the STM32 family. Other key parts include the SRV05-4, LM5168F, TPS62173DSG, TPS62172DSG and MCP2551-I-SN. By type, the board carries 72 capacitors, 37 resistors, 20 ICs, 15 connectors, 3 diodes and 3 inductors.

It belongs with the robotics & motion, iot & wireless and sensors designs in this gallery.

From the project

ESC (electronic speed controller) based on VESC6 schematic

BaguetteESC is an open-source, compact Electronic Speed Controller (ESC) inspired by the VESC platform. It is designed to push boundaries in high-voltage motor control and explore innovative hardware concepts. ⚠️ Please note: this project is in a very early stage and has not yet been tested. Use at your own risk.

⚠️ THIS PROJECT IS PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED WARRANTY. I AM NOT RESPONSIBLE FOR ANY DAMAGE TO PERSONS, PROPERTY, OR EQUIPMENT RESULTING FROM THE USE, MISUSE, OR MALFUNCTION OF THIS HARDWARE OR SOFTWARE.

Logic, from the project README
From the project README

Main components on the Logic

SRV05-4STM32F405RGTxLM5168FTPS62173DSGTPS62172DSGMCP2551-I-SNMC74VHC1GT66BMI160

Logic bill of materials (BOM)

151 components, 57 distinct parts.

QtyPartRefs
2
SRV05-4
U1, U19
1
STM32F405RGTx
U2
3
~
U3, U4, U5
1
LM5168F
U6
1
TPS62173DSG
U7
1
TPS62172DSG
U8
1
MCP2551-I-SN
U9
6
MC74VHC1GT66
U10, U11, U12, U16, U17, U18
3
~
U13, U14, U15
1
BMI160
U20
1
8m
Y1
2
Conn_01x02_Pin
J1, J14
1
USB_C_Receptacle_USB2.0
J2
1
Conn_01x03_Pin
J3
3
Conn_01x03_Socket
J4, J7, J11
1
Conn_01x06_Pin
J10
1
Conn_01x08_Pin
J15
1
Conn_01x04_Pin
J16
3
Conn_01x02_Socket
J17, J20, J22
1
Conn_01x06_Pin
J23
Show 37 more
QtyPartRefs
1
Conn_01x02_Pin
J24
3
LED
D1, D2, D3
1
220uh
L1
2
10uH
L2, L3
1
1n
C1
6
1n
C2, C3, C4, C15n1, C15n2, C15n3
17
100n
C5, C6, C7, C8, C19, C20, C21, C22 +9
7
100n
C9, C94, C95, C96, C97, C98, C99
2
15p
C10, C11
8
2.2u
C12, C13, C14, C15, C101, C102, C103, C104
3
15n
C16, C17, C18
3
2.2uf
C49, C50, C51
1
100n
C53
7
4.7u
C54, C55, C56, C58, C59, C89, C91
1
2.2n
C60
3
1u
C61, C62, C63
1
1.2n
C64
4
2.2u
C65, C66, C75, C87
1
47p
C67
2
10uF
C68, C71
2
22uF
C69, C72
2
10uF
C70, C73
1
22u
C88
2
5k1
R1, R2
3
2k2
R3, R4, R5
5
10k
R6, R40, R41, R42, R64
2
220
R7, R8
9
1k
R9, R10, R11, R12, R16, R17, R18, R19 +1
1
10k_NTC
R39
4
100K
R43, R44, R45, R55
4
2.2k
R46, R47, R48, R56
1
453k
R57
1
357k
R58
1
59k
R59
1
50k
R60
2
100k
R61, R62
1
120ohm
R63

Logic design files

The KiCad project lives in the LJBoxx/Baguette-esc repository on GitHub; these links point at the commit this page was built from.

Logic: common questions

What microcontroller does the Logic use?

The Logic is built around the STM32F405RGTx, from the STM32 family.

How big is the Logic PCB?

The Logic measures 60.5 × 60.7 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Logic?

151 components, from 57 distinct parts. The full bill of materials is listed on this page.

Where can I download the Logic design files?

From the LJBoxx/Baguette-esc repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Logic design in my own project?

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

Can I test firmware for the Logic 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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