4 open source boards using the PE42421
Real designs built with the PE42421, 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.
Flipper subg
ElectronicCats
67 × 31.3 mm41 parts4LNo license130
LoRaPP
daveshah1
50 × 18 mm78 parts4LNo license4
ESP32Marauder
67 × 28 mm31 parts2LNo license130
Sensor Board
83 × 83 mm51 parts4LNo license35
The PE42421 in open source designs
The gallery holds 4 open source boards using the PE42421 from 3 GitHub repositories; a typical one measures about 67 × 29.6 mm and carries around 46 components.
75% use four copper layers or more, and 0% carry an open source license.
The most starred is Flipper subg by ElectronicCats.
Parts used alongside the PE42421
Microcontrollers on boards using the PE42421
What boards using the PE42421 are built for
PE42421: common questions
Where can I find a PE42421 reference design?
Each of the 4 boards on this page is a real design using the PE42421. 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 PE42421 use?
Most are built on ESP32 (1).
How big is a typical board using the PE42421?
The median is 67 × 29.6 mm, and 25% are two-layer designs.
What is the most popular open source board using the PE42421?
By GitHub stars, Flipper subg by ElectronicCats, with 130 stars.
Can I simulate one of these boards using the PE42421 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.