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AllSerial eBus

Phunkafizer·AllSerial·Slaveboards/eBus/Board/AllSerial eBus.kicad_pcb

AllSerial eBus PCB layout, top view — open source board by Phunkafizer

About the AllSerial eBus PCB

AllSerial eBus is an open source PCB design by Phunkafizer, published on GitHub under the MIT license. It is a 2-layer board measuring 67.4 × 44.8 mm, with 39 components from 22 distinct parts.

Other key parts include the LM293. By type, the board carries 16 resistors, 10 diodes, 6 transistors, 2 connectors, 2 inductors and 1 IC.

It belongs with the usb & debug tools and iot & wireless designs in this gallery.

From the project

An universal sophisticated USB-serial converter

SEE PROJECTHOMEPAGE UNDER https://www.seegel-systeme.de/2025/07/10/allserial

Over the course of time I had to work with many different devices which had to be connected via a kind of serial interface. There are lots of different cheap USB-serial adapters available, but no adapter was including all features I needed in a single device. Every USB-serial adapter has in common the USB Controller. So I came up with the idea having a masterboard providing all the common features like USB interface, isolation and diagnostic elements. The most used interfaces (RS232, RS485, TTL UART, TTY current…

AllSerial eBus, from the project README
From the project README

Main components on the AllSerial eBus

LM293

AllSerial eBus bill of materials (BOM)

39 components, 22 distinct parts.

QtyPartRefs
1
LM293
U1
2
Q_PNP_BCEC
Q1, Q5
3
BC847
Q2, Q4, Q6
1
BC857
Q3
1
AllSerial_Connector
X1
1
~
J1
1
Conn_01x02
J3
1
BZT52C7V5S
D1
1
GN
D2
5
SD103AWS
D3, D4, D5, D6, D8
2
RD
D7, D10
1
P4SMAJ30CA
D9
2
~
L1, L2
1
100n
C1
1
470
R1
2
220
R2, R8
6
12k
R3, R4, R7, R11, R14, R18
1
6R8
R5
1
47k
R6
1
220k
R10
Show 2 more
QtyPartRefs
3
4k7
R12, R15, R17
1
22
R16

AllSerial eBus design files

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

AllSerial eBus: common questions

How big is the AllSerial eBus PCB?

The AllSerial eBus measures 67.4 × 44.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the AllSerial eBus?

39 components, from 22 distinct parts. The full bill of materials is listed on this page.

Where can I download the AllSerial eBus design files?

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

Can I use the AllSerial eBus design in my own project?

Yes, under the terms of its MIT license, which Phunkafizer chose for the repository.

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