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ARDUINO BMS - Protection Board

simple-ee·mBMS·Schematic/The Protection Board/20190720_Project_OCP-OVP-UVP.kicad_pcb

ARDUINO BMS - Protection Board layout, top view — open source AVR/Arduino board by simple-ee
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About the ARDUINO BMS - Protection Board

ARDUINO BMS - Protection Board is an open source AVR/Arduino PCB design by simple-ee, published on GitHub under the MIT license. It is a board measuring 62.3 × 85.5 mm, with 97 components from 41 distinct parts.

Its main chip is the ATMEGA328PB-AU, from the AVR/Arduino family. Other key parts include the MC74HC1G04DFT1G, ADS1119IPWR, TPS7B6950DBVR, ACS781KLRTR-150B-T and TPS560430YFDBVR. By type, the board carries 34 resistors, 17 capacitors, 11 connectors, 10 transistors, 6 ICs and 6 test points.

It belongs with the power & battery designs in this gallery.

From the project

This is the modular BMS for use with 8S LiFePO4

Right now I'm essentially maxed out resources and memory on the atmega328PB and cannot add anymore features which is why I'm planning on upgrading the design.

Even though this design is now my old design its still very functional and very stable as it has been running my 4kWh system for about 6 months and protecting the cells perfectly.

The reason for making it a modular design is for easy upgradability and also, considering the current chip shortage, is to replace sections of the board in case there are no parts available. This will prevent the need to redo and re-layout of the entire…

ARDUINO BMS - Protection Board, from the project README
From the project README

Main components on the ARDUINO BMS - Protection Board

MC74HC1G04DFT1GATMEGA328PB-AUADS1119IPWRTPS7B6950DBVRACS781KLRTR-150B-TTPS560430YFDBVR

ARDUINO BMS - Protection Board bill of materials (BOM)

97 components, 41 distinct parts.

QtyPartRefs
1
MC74HC1G04DFT1G
U201
1
ATMEGA328PB-AU
U202
1
ADS1119IPWR
U203
1
TPS7B6950DBVR
U301
1
ACS781KLRTR-150B-T
U401
1
TPS560430YFDBVR
U501
2
2N7002-7-F
Q401, Q404
2
BSS84LT1G
Q402, Q405
1
ISO7021FDR
Q403
5
PSMNR70-40SSHJ
Q406, Q407, Q410, Q412, Q413
1
CB3-3I-16M0000
Y201
4
Standoff_M3
P305, P306, P307, P308
2
S5B-PH-SM4-TB(LF)(SN)
P401, P402
3
TH_1POS_10MMx12MM_M6_copy
P403, P404, P405
2
SMD_1POS_12MM
P407, P408
2
0686F1000-01
F301, F302
1
142.5631.6122
F401
1
KSC721G
SW201
4
TP_CIRCLE_1.5MM
TP202, TP203, TP204, TP205
2
TP_CIRCLE_1MM-TestPoint
TP206, TP207
Show 21 more
QtyPartRefs
2
DESD34VS2SO
D301, D302
2
PRTR5V0U2X,215
D501, D502
2
MLZ2012N100LT000
L1, L302
1
MLZ2012DR10DT000
L301
1
LQH43PN100M26L
L501
12
C0603C104K5RACAUTO
C201, C202, C203, C204, C205, C206, C207, C401 +4
1
GRM188R61E225KA12D
C301
1
CL10A475MA8NQNC
C302
1
GRM188R6YA225MA12D
C501
1
CC0603KRX7R6BB684
C504
1
C1608X5R1A685M080AC
C505
7
ERA-3AEB103V
R201, R206, R207, R208, R209, R401, R402
2
RC0603FR-0730KL
R202, R212
2
RR0816P-203-D
R203, R213
1
RT0603BRE07673KL
R204
1
ERJ-PB3B4222V
R205
2
RC0603FR-07470RL
R210, R211
5
RC0603FR-07100RL
R403, R416, R420, R422, R423
12
CPF0603F100KC1
R404, R405, R406, R407, R408, R409, R410, R411 +4
1
ERJ-3EKF8872V
R501
1
RR0816P-2212-D-34C
R502

ARDUINO BMS - Protection Board design files

The KiCad project lives in the simple-ee/mBMS repository on GitHub; these links point at the commit this page was built from.

ARDUINO BMS - Protection Board: common questions

What microcontroller does the ARDUINO BMS - Protection Board use?

The ARDUINO BMS - Protection Board is built around the ATMEGA328PB-AU, from the AVR/Arduino family.

How big is the ARDUINO BMS - Protection Board?

The ARDUINO BMS - Protection Board measures 62.3 × 85.5 mm and is 1.6 mm thick.

How many components are on the ARDUINO BMS - Protection Board?

97 components, from 41 distinct parts. The full bill of materials is listed on this page.

Where can I download the ARDUINO BMS - Protection Board design files?

From the simple-ee/mBMS repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the ARDUINO BMS - Protection Board design in my own project?

Yes, under the terms of its MIT license, which simple-ee chose for the repository.

Can I test firmware for the ARDUINO BMS - Protection Board without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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