2 layers142 × 98 mm Multiplexer, the printed circuit board in 3D

Multiplexer

BTA primary mirror thermal monitoring using STM32 and TSYS01

Size: 142 × 98 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 89
Nets: 65
Pads: 358
Tracks, vias: 2,259, 65
Pours: 4
Routed: Yes
KiCad: KiCad 4
Created: 16 Mar 2017
Updated: 23 Oct 2024

Overview

Multiplexer is an open-source printed circuit board by eddyem, from the eddyem/tsys01 repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 142 × 98 mm with 89 parts on 65 nets, routed with 2,259 tracks and 65 vias.

It is built around the 74HC4051 and LM1117-3.3. Its parts include 54 resistors, 9 capacitors, 9 connectors and 8 ICs. It belongs with the interfaces and adapters and sensors and measurement boards and the STM32 boards of this library.

Main components

README

README.md

tsys01

BTA primary mirror thermal monitoring using STM32 and TSYS01

File structure:

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

Parts

Qty	Value	Footprint	References
48	4k7	Resistor_SMD.pretty:R_0805_2012Metric_Pad1.29x1.40mm_HandSolder	R2.1, R2.2, R2.3, R2.4, R2.5, R2.6, R3.1, R3.2, R3.3, R3.4, R3.5, R3.6, R4.1, R4.2, R4.3, R4.4 +32
8	0.1	Capacitor_SMD.pretty:C_0805_2012Metric_Pad1.29x1.40mm_HandSolder	C1.1, C1.2, C1.3, C1.4, C1.5, C1.6, C2, C8
7	74HC4051	Package_SO.pretty:SOIC-16_3.9x9.9mm_P1.27mm	U1, U3.1, U3.2, U3.3, U3.4, U3.5, U3.6
6	47k	Resistor_SMD.pretty:R_0805_2012Metric_Pad1.29x1.40mm_HandSolder	R1.1, R1.2, R1.3, R1.4, R1.5, R1.6
6	SDA/SCL	mylib:8pair	J3.1, J3.2, J3.3, J3.4, J3.5, J3.6
1	47u	Capacitor_Tantalum_SMD.pretty:CP_EIA-3216-18_Kemet-A_Pad1.53x1.40mm_HandSolder	C9
1	5V in	TerminalBlock.pretty:TerminalBlock_bornier-2_P5.08mm	J1
1	ADDR	Connector_PinHeader_2.54mm.pretty:PinHeader_1x06_P2.54mm_Vertical	J3
1	I2C_IN	Connector_PinHeader_2.54mm.pretty:PinHeader_1x03_P2.54mm_Vertical	J2
1	LM1117-3.3	Package_TO_SOT_SMD.pretty:SOT-223-3_TabPin2	U2

The 80 most common of 89 parts.

Questions

How big is the Multiplexer PCB?

It measures 142 × 98 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Multiplexer use?

89 parts, built around the 74HC4051 and LM1117-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Multiplexer KiCad files?

From the eddyem/tsys01 repository on GitHub, at the commit this page was made from: the board is kicad/multiplexer/multiplexer.kicad_pcb and its schematic kicad/stm32/stm32.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Multiplexer design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Category and platform

Interfaces and adapters Sensors and measurement STM32

Topics

bare-metal c canbus control electronics i2c linux monitoring russia sockets stm32 telescope temperature-sensor

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/eddyem-tsys01-multiplexer" title="Multiplexer in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/eddyem-tsys01-multiplexer.jpg" alt="Multiplexer" width="1200" height="900">

A picture that opens the board, for a README

[![Multiplexer](https://pcbkit.io/embed/boards/eddyem-tsys01-multiplexer.jpg?size=s)](https://pcbkit.io/boards/eddyem-tsys01-multiplexer)

Source

Repository: eddyem/tsys01
Board file: kicad/multiplexer/multiplexer.kicad_pcb
Commit: c44e0ca
Licence: GPL-3.0

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