HardLabs

Multiplexer

eddyem·tsys01·kicad/multiplexer/multiplexer.kicad_pcb

Multiplexer PCB layout, top view — open source board by eddyem

About the Multiplexer PCB

Multiplexer is an open source PCB design by eddyem, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 142 × 98 mm, with 80 components from 10 distinct parts.

Other key parts include the 74HC4051 and LM1117-3.3. By type, the board carries 54 resistors, 9 connectors, 9 capacitors and 8 ICs.

It belongs with the sensors and science & space designs in this gallery.

From the project

BTA primary mirror thermal monitoring using STM32 and TSYS01

- kicad -- hardware schematics (I2C 48-channels multiplexer & main controller board) - STM32 -- firmware sources - m-files -- m-files for Octave used in tests - src -- PC-side sources - tests -- some data with sensors' tests

Main components on the Multiplexer

74HC4051LM1117-3.3

Multiplexer bill of materials (BOM)

80 components, 10 distinct parts — part numbers from the project's BOM.

QtyPartRefs
7
74HC4051
U1, U3.1, U3.2, U3.3, U3.4, U3.5, U3.6
1
LM1117-3.3
U2
1
5V in
J1
1
I2C_IN
J2
1
ADDR
J3
6
SDA/SCL
J3.1, J3.2, J3.3, J3.4, J3.5, J3.6
8
0.1
C1.1, C1.2, C1.3, C1.4, C1.5, C1.6, C2, C8
1
47u
C9
6
47k
R1.1, R1.2, R1.3, R1.4, R1.5, R1.6
48
4k7
R2.1, R2.2, R2.3, R2.4, R2.5, R2.6, R3.1, R3.2 +40

Multiplexer design files

The KiCad project lives in the eddyem/tsys01 repository on GitHub; these links point at the commit this page was built from.

Multiplexer: common questions

How big is the Multiplexer PCB?

The Multiplexer measures 142 × 98 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Multiplexer?

80 components, from 10 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 Multiplexer design files?

From the eddyem/tsys01 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Multiplexer design in my own project?

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

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