2 open source boards using the HCPL-0631
Real designs built with the HCPL-0631, 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.
Expander
plinkysynth
43.2 × 128.3 mm68 parts2LCC-BY-NC-4.019
Expander just back
20.3 × 104.3 mm59 parts2LCC-BY-NC-4.019
The HCPL-0631 in open source designs
The gallery holds 2 open source boards using the HCPL-0631 from 1 GitHub repository; a typical one measures about 31.8 × 116.3 mm and carries around 64 components.
100% are two-layer designs, the rest use four layers or more, and 0% carry an open source license.
The most starred is Expander by plinkysynth.
What boards using the HCPL-0631 are built for
HCPL-0631: common questions
Where can I find a HCPL-0631 reference design?
Each of the 2 boards on this page is a real design using the HCPL-0631. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
How big is a typical board using the HCPL-0631?
The median is 31.8 × 116.3 mm, and 100% are two-layer designs.
What is the most popular open source board using the HCPL-0631?
By GitHub stars, Expander by plinkysynth, with 19 stars.
Can I simulate one of these boards using the HCPL-0631 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.