17 open source boards using the TCA9548APWR
Real designs built with the TCA9548APWR, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
Cellsim-8ch
atopile
13 × 9 mm608 parts4LMIT29
Zero Palm V1
molanocortes
51.7 × 23.9 mm9 parts2LCustom license20
AVR/ArduinoOpenHarrierUFC
OpenHarrier
144 × 158 mm91 parts2LGPL-3.013
NXPSigyn
wimblerobotics
96.5 × 76.2 mm73 parts4LApache-2.07
Raspberry PiUnfolding space hardware
jakobkilian
57 × 74.6 mm82 parts2LCC-BY-4.04
I2C multiplexer TCA9548A
SolderedElectronics
38 × 54 mm35 parts2LTAPR-OHL-1.03
CyCompute
M2I-HABET
230 × 70 mm29 parts2LNo license3
STM32Glove daq
corneliusgruss
46 × 56 mm63 parts2LMIT2
STM32Roly
szf2020
130 × 100 mm56 parts2LCC-BY-SA-4.01
Odonata
Stefanos0710
85.8 × 69.8 mm42 parts4LMIT1- schematic only · 31 partsESP32
Urine analyzer lite
Sid93
31 parts2LNo license1 - schematic only · 4 partsESP32
Biobot hardware
biobotproject-org
4 parts2LCERN-OHL-P-2.00 
Encoder board
10.5 × 11.5 mm3 parts2LCustom license20
I2C multiplexer TCA9548A
54 × 38 mm35 parts2LTAPR-OHL-1.03
STM32AVIONICS BOARD
MatthiasGeorgImhof
80 × 80 mm178 parts4LCC-BY-NC-4.00
Thermistor-8ch
29.7 × 28.3 mm78 parts4LMIT29
ESP32Meshtonic h4m v2
Josephrp
71.1 × 168.4 mm115 parts6LCustom license12
The TCA9548APWR in open source designs
The gallery holds 17 open source boards using the TCA9548APWR from 14 GitHub repositories; a typical one measures about 57 × 69.8 mm and carries around 56 components.
65% are two-layer designs, the rest use four layers or more, and 65% carry an open source license.
The most starred is Cellsim-8ch by atopile.
Microcontrollers on boards using the TCA9548APWR
What boards using the TCA9548APWR are built for
TCA9548APWR: common questions
Where can I find a TCA9548APWR reference design?
Each of the 17 boards on this page is a real design using the TCA9548APWR. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
Which microcontrollers do boards using the TCA9548APWR use?
Most are built on ESP32 (3), STM32 (3), AVR/Arduino (1) and NXP (1).
How big is a typical board using the TCA9548APWR?
The median is 57 × 69.8 mm, and 65% are two-layer designs.
What is the most popular open source board using the TCA9548APWR?
By GitHub stars, Cellsim-8ch by atopile, with 29 stars.
Can I simulate one of these boards using the TCA9548APWR before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.