2 open source boards using the REF2025
Real designs built with the REF2025, 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.
RP2040/RP2350Main board
AllenNeuralDynamics
80 × 50 mm183 parts4LMIT5
STM32ETH1LCR3
BehrensG
160 × 100 mm532 parts6LNo license0
The REF2025 in open source designs
The gallery holds 2 open source boards using the REF2025 from 2 GitHub repositories; a typical one measures about 120 × 75 mm and carries around 358 components.
100% use four copper layers or more, and 50% carry an open source license.
The most starred is Main board by AllenNeuralDynamics.
Microcontrollers on boards using the REF2025
REF2025: common questions
Where can I find a REF2025 reference design?
Each of the 2 boards on this page is a real design using the REF2025. 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 REF2025 use?
Most are built on RP2040/RP2350 (1) and STM32 (1).
How big is a typical board using the REF2025?
The median is 120 × 75 mm, and 0% are two-layer designs.
What is the most popular open source board using the REF2025?
By GitHub stars, Main board by AllenNeuralDynamics, with 5 stars.
Can I simulate one of these boards using the REF2025 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.