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I2C repeter

KomplexKapharnaum·KXKM_Batterie_Parallelator·hardware/pcb-bmu-v2/I2C_repeter/I2C_repeter.kicad_pcb

I2C repeter PCB layout, top view — open source board by KomplexKapharnaum

About the I2C repeter PCB

I2C repeter is an open source PCB design by KomplexKapharnaum, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 62.5 × 31 mm, with 25 components from 16 distinct parts.

Other key parts include the TCA9517ADGK, ISO1540DR and VPS8505. By type, the board carries 10 resistors, 6 capacitors, 3 ICs, 3 connectors and 2 diodes.

It belongs with the iot & wireless designs in this gallery.

From the project

The KXKM Batterie Parallelator is an embedded Battery Management Unit (BMU) that safely parallels multiple battery packs (24-30V) for off-grid stage installations. Each battery is individually monitored (voltage, current, temperature) and can be disconnected in microseconds via M

The KXKM Batterie Parallelator is an embedded Battery Management Unit (BMU) that safely parallels multiple battery packs (24-30V) for off-grid stage installations. Each battery is individually monitored (voltage, current, temperature) and can be disconnected in microseconds via MOSFET switches.

Built by L'Electron Rare for KompleX KapharnaüM (Villeurbanne, France) — a live arts company deploying digital scenography in public spaces without grid power.

I2C repeter, from the project README
From the project README

Main components on the I2C repeter

TCA9517ADGKISO1540DRVPS8505

I2C repeter bill of materials (BOM)

25 components, 16 distinct parts.

QtyPartRefs
1
TCA9517ADGK
U1
1
ISO1540DR
U2
1
VPS8505
U3
2
RJ45_Shielded
J1, J2
1
Conn_01x04
J3
1
VPT85BB-01A
TR1
2
1A/100V
D1, D2
2
0.1uF
C1, C2
1
10uF,16V
C3
1
0,1uF
C4
1
1uF
C5
1
10uF
C6
4
470R
R1, R2, R5, R6
2
10K
R3, R4
2
1K
R7, R8
2
50R
R9, R10

I2C repeter design files

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

I2C repeter: common questions

How big is the I2C repeter PCB?

The I2C repeter measures 62.5 × 31 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the I2C repeter?

25 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the I2C repeter design files?

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

Can I use the I2C repeter design in my own project?

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

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