3 open source boards using the TCA9534
Real designs built with the TCA9534, 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.
ZC95 MKII
CrashOverride85
191.5 × 76 mm319 parts2LGPL-3.0112
RP2040/RP2350Output
60.3 × 139.1 mm116 parts2LGPL-3.0112
PanelControls
106 × 37.8 mm40 parts2LGPL-3.0112
The TCA9534 in open source designs
The gallery holds 3 open source boards using the TCA9534 from 1 GitHub repository; a typical one measures about 106 × 76 mm and carries around 116 components.
100% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is ZC95 MKII by CrashOverride85.
Microcontrollers on boards using the TCA9534
What boards using the TCA9534 are built for
TCA9534: common questions
Where can I find a TCA9534 reference design?
Each of the 3 boards on this page is a real design using the TCA9534. 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 TCA9534 use?
Most are built on RP2040/RP2350 (1).
How big is a typical board using the TCA9534?
The median is 106 × 76 mm, and 100% are two-layer designs.
What is the most popular open source board using the TCA9534?
By GitHub stars, ZC95 MKII by CrashOverride85, with 112 stars.
Can I simulate one of these boards using the TCA9534 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.