4 open source boards using the 5V
Real designs built with the 5V, 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.
ESP32GyroCube
Pedro-51
73.5 × 52.1 mm23 parts2LNo license7- schematic only · 69 partsAVR/Arduino
Thotcon0x5
Workshop88
69 partsNo license7 
RP2040/RP2350Output controller
mekatrol
238 × 122 mm161 parts2LNo license0
RP2040/RP2350Controller
140 × 100 mm146 parts2LNo license0
The 5V in open source designs
The gallery holds 4 open source boards using the 5V from 3 GitHub repositories; a typical one measures about 140 × 100 mm and carries around 108 components.
100% are two-layer designs, the rest use four layers or more, and 0% carry an open source license.
The most starred is Thotcon0x5 by Workshop88.
Parts used alongside the 5V
Microcontrollers on boards using the 5V
What boards using the 5V are built for
5V: common questions
Where can I find a 5V reference design?
Each of the 4 boards on this page is a real design using the 5V. 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 5V use?
Most are built on RP2040/RP2350 (2), AVR/Arduino (1) and ESP32 (1).
How big is a typical board using the 5V?
The median is 140 × 100 mm, and 100% are two-layer designs.
What is the most popular open source board using the 5V?
By GitHub stars, Thotcon0x5 by Workshop88, with 7 stars.
Can I simulate one of these boards using the 5V 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.