2 open source boards using the 7404D
Real designs built with the 7404D, 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.
Csa ultrabus v2
fachat
207.1 × 102.8 mm63 parts2LNo license4
AVR/ArduinoTinkercode extension generator
apauaie
104.1 × 155.6 mm46 parts2LGPL-3.00
The 7404D in open source designs
The gallery holds 2 open source boards using the 7404D from 2 GitHub repositories; a typical one measures about 155.6 × 129.2 mm and carries around 55 components.
100% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Csa ultrabus v2 by fachat.
Microcontrollers on boards using the 7404D
What boards using the 7404D are built for
7404D: common questions
Where can I find a 7404D reference design?
Each of the 2 boards on this page is a real design using the 7404D. 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 7404D use?
Most are built on AVR/Arduino (1).
How big is a typical board using the 7404D?
The median is 155.6 × 129.2 mm, and 100% are two-layer designs.
What is the most popular open source board using the 7404D?
By GitHub stars, Csa ultrabus v2 by fachat, with 4 stars.
Can I simulate one of these boards using the 7404D 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.