2 open source boards using the OP27
Real designs built with the OP27, 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.
Earthboot
microresearch
49.7 × 130.1 mm44 parts2LGPL-3.05
Earthboot withnewsoldermask
49.7 × 130.1 mm42 parts2LGPL-3.05
The OP27 in open source designs
The gallery holds 2 open source boards using the OP27 from 1 GitHub repository; a typical one measures about 49.7 × 130.1 mm and carries around 43 components.
100% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is Earthboot by microresearch.
OP27: common questions
Where can I find a OP27 reference design?
Each of the 2 boards on this page is a real design using the OP27. 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 OP27?
The median is 49.7 × 130.1 mm, and 100% are two-layer designs.
What is the most popular open source board using the OP27?
By GitHub stars, Earthboot by microresearch, with 5 stars.
Can I simulate one of these boards using the OP27 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.