HardLabs

DiyBMS-CurrentShunt

stuartpittaway·diyBMS-CurrentShunt·CurrentShuntCircuit/CurrentShuntCircuit.kicad_pcb

DiyBMS-CurrentShunt PCB layout, top view — open source AVR/Arduino board by stuartpittaway
Simulate this board

About the DiyBMS-CurrentShunt PCB

DiyBMS-CurrentShunt is an open source AVR/Arduino PCB design by stuartpittaway, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 90 × 72 mm, with 45 components from 31 distinct parts.

Its main chip is the ATTINY1614-SS, from the AVR/Arduino family. Other key parts include the TLP172GM, INA228, ADM2483XRW and LM5009A. By type, the board carries 16 resistors, 14 capacitors, 5 ICs, 4 connectors, 3 diodes and 1 fuse.

It belongs with the power & battery and usb & debug tools designs in this gallery.

From the project

Isolated current, voltage and SOC monitor for battery banks up to 85V

Isolated current, voltage and amp hour counting monitor for battery banks up to 85 volt.

Designed for use with the diyBMS controller, although can be operated standalone using RS485 and MODBUS

If you find the BMS useful, please consider buying me a beer, check out Patron for more information

Forum: https://community.openenergymonitor.org/c/hardware/diybms/53

This repository contains the hardware designs, generally in KiCad format. Unless you are changing the design, you don't need to use/install KiCad, just use the premade files.

DiyBMS-CurrentShunt, from the project README
From the project README

Main components on the DiyBMS-CurrentShunt

TLP172GMATTINY1614-SSINA228ADM2483XRWLM5009A

DiyBMS-CurrentShunt bill of materials (BOM)

45 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TLP172GM
U1
1
ATTINY1614-SS
ATtiny1614-SS
U2
1
INA228
U3
1
ADM2483XRW
ADM2483xRW
U4
1
LM5009A
U5
1
Debug/UPDI
J3
2
SCREW_TERMINAL_01X04
Screw_Terminal_01x04
J4, J5
1
ScrewTerminal
J6
1
Through Hole PTC
F1
1
SW_DIP_X02
SW_DIP_x02
SW1
1
400V 1A 1.3V @ 1A 150ns SMA
D1
1
GREEN
D2
1
RED
D3
1
1MH
1mH ±20% 250mA
L1
3
1UF
1uF
C1, C2, C7
4
100NF
100nF
C3, C4, C12, C13
1
1UF
1uF 100V
C5
2
100nF 100V
C6, C14
2
10NF
10nF
C8, C9
1
3.3NF
3.3nF
C10
Show 11 more
QtyPartRefs
1
47UF
47µF ±10% 16V Ceramic X5R
C11
2
10R
R1, R2
1
680K
680k
R3
1
150K
150k
R4
1
470K
470k
R5
3
10K
R6, R7, R13
3
330R
R8, R14, R15
2
4K7
2k2
R9, R10
1
100K
R11
1
120R
R12
1
470R
R16

DiyBMS-CurrentShunt design files

The KiCad project lives in the stuartpittaway/diyBMS-CurrentShunt repository on GitHub; these links point at the commit this page was built from.

DiyBMS-CurrentShunt: common questions

What microcontroller does the DiyBMS-CurrentShunt use?

The DiyBMS-CurrentShunt is built around the ATTINY1614-SS, from the AVR/Arduino family.

How big is the DiyBMS-CurrentShunt PCB?

The DiyBMS-CurrentShunt measures 90 × 72 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the DiyBMS-CurrentShunt?

45 components, from 31 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 DiyBMS-CurrentShunt design files?

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

Can I use the DiyBMS-CurrentShunt design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the DiyBMS-CurrentShunt 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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