2 open source boards using the 254
Real designs built with the 254, 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.
ESP32Privasee
OSHE-Github
73.9 × 90 mm29 parts4LGPL-3.01
Nordic nRFDevBoard
VolksEEG
134 × 127 mm16 parts2LGPL-3.075
The 254 in open source designs
The gallery holds 2 open source boards using the 254 from 2 GitHub repositories; a typical one measures about 103.9 × 108.5 mm and carries around 23 components.
50% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is DevBoard by VolksEEG.
Microcontrollers on boards using the 254
What boards using the 254 are built for
254: common questions
Where can I find a 254 reference design?
Each of the 2 boards on this page is a real design using the 254. 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 254 use?
Most are built on ESP32 (1) and Nordic nRF (1).
How big is a typical board using the 254?
The median is 103.9 × 108.5 mm, and 50% are two-layer designs.
What is the most popular open source board using the 254?
By GitHub stars, DevBoard by VolksEEG, with 75 stars.
Can I simulate one of these boards using the 254 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.