2 open source boards using the LS04
Real designs built with the LS04, 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.
- schematic only · 97 parts
K-1013-floppy disk controller replica
eduardocasino
97 partsCustom license3 
Northstar SIO
abzman
76.3 × 147.3 mm46 parts2LUnlicense4
The LS04 in open source designs
The gallery holds 2 open source boards using the LS04 from 2 GitHub repositories; a typical one measures about 76.3 × 147.3 mm and carries around 72 components.
100% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Northstar SIO by abzman.
LS04: common questions
Where can I find a LS04 reference design?
Each of the 2 boards on this page is a real design using the LS04. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the LS04?
The LS00, LS109 and LS161 appear in the most repositories here.
How big is a typical board using the LS04?
The median is 76.3 × 147.3 mm, and 100% are two-layer designs.
What is the most popular open source board using the LS04?
By GitHub stars, Northstar SIO by abzman, with 4 stars.
Can I simulate one of these boards using the LS04 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.