HardLabs

Bms hardware

jsphuebner·bms-hardware·Isolator Files/CAN Isolator SMT/CAN Isolator V2/Isolator CAN SMT v2.kicad_pcb

Bms hardware PCB layout, top view — open source STM32 board by jsphuebner
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About the Bms hardware PCB

Bms hardware is an open source STM32 PCB design by jsphuebner, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 64.5 × 85.1 mm, with 68 components from 35 distinct parts.

Its main chip is the STM32F105RBTX, from the STM32 family. Other key parts include the MP2359, AMS1117-3.3, SN65HVD230 and 4N35S. By type, the board carries 22 capacitors, 22 resistors, 7 ICs, 5 transistors, 4 diodes and 3 connectors.

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

From the project

Hardware design files for Lithium BMS

You musn't change the copyright info (J. Huebner/A. Martell and openinverter.org) on the silkscreen in size location or content.

Main components on the Bms hardware

MP2359AMS1117-3.3STM32F105RBTXSN65HVD2304N35S

Bms hardware bill of materials (BOM)

68 components, 35 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MP2359
U1
1
AMS1117-3.3
LD1117S33TR_SOT223
U2
1
STM32F105RBTX
STM32F105RBTx
U3
2
SN65HVD230
U4, U7
2
4N35S
U5, U6
3
S8050
Q1, Q2, Q3
2
AO3400A
Q4, Q5
1
8M0
Y2
1
CINCH_5810132011
Cinch_5810132011
J1
1
CONN_01X04
Conn_01x04
J4
1
CONN_02X05_ODD_EVEN
Conn_02x05_Odd_Even
J9
1
G5LE-1
K1
1
D_Schottky
D1
1
1N4148
D2
2
LED
D3, D4
1
3.3UH
3.3uH
L1
2
10UH
10uH
L2, L3
1
33PF
33pF
C1
1
22NF
22nF
C2
2
100UF
100uF
C3, C23
Show 15 more
QtyPartRefs
1
4.7UF
4.7uF
C4
2
1NF
1nF
C5, C10
1
10UF
10uF
C6
7
100NF
100nF
C7, C11, C13, C16, C17, C18, C19
3
1UF
1uF
C8, C21, C22
1
22UF
22uF
C9
3
20PF
20pF
C12, C15, C20
9
10KΩ
R1, R7, R13, R16, R17, R19, R20, R21 +1
3
15KΩ
R2, R3, R4
2
4.7KΩ
R5, R6
2
470Ω
R8, R9
1
9.53KΩ
R10
1
49.9KΩ
R11
3
100KΩ
R12, R14, R18
1
270Ω
R15

Bms hardware design files

The KiCad project lives in the jsphuebner/bms-hardware repository on GitHub; these links point at the commit this page was built from.

Bms hardware: common questions

What microcontroller does the Bms hardware use?

The Bms hardware is built around the STM32F105RBTX, from the STM32 family.

How big is the Bms hardware PCB?

The Bms hardware measures 64.5 × 85.1 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Bms hardware?

68 components, from 35 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 Bms hardware design files?

From the jsphuebner/bms-hardware repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Bms hardware design in my own project?

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

Can I test firmware for the Bms hardware 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.

Earlier revisions in the repo: Isolator CAN SMT

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