3 open source boards using the XR68C681
Real designs built with the XR68C681, 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.
Mackerel-30
crmaykish
215 × 150 mm127 parts4LMIT94
Mackerel-10 v1
210 × 170 mm110 parts4LMIT94
Mackerel-08 SBC v1
180 × 120 mm81 parts4LMIT94
The XR68C681 in open source designs
The gallery holds 3 open source boards using the XR68C681 from 1 GitHub repository; a typical one measures about 210 × 150 mm and carries around 110 components.
100% use four copper layers or more, and 100% carry an open source license.
The most starred is Mackerel-30 by crmaykish.
What boards using the XR68C681 are built for
XR68C681: common questions
Where can I find a XR68C681 reference design?
Each of the 3 boards on this page is a real design using the XR68C681. 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 XR68C681?
The median is 210 × 150 mm, and 0% are two-layer designs.
What is the most popular open source board using the XR68C681?
By GitHub stars, Mackerel-30 by crmaykish, with 94 stars.
Can I simulate one of these boards using the XR68C681 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.