5 open source boards using the IS31FL3731-QF
Real designs built with the IS31FL3731-QF, 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.
Optical keyboard mx
girishji
324.8 × 186 mm413 parts2LMIT22
Microchip SAMBadge2020
bornhack
71.5 × 141.1 mm346 parts2LCC-BY-SA-4.012
AVR/ArduinoHourglass reva
geschmit
34 × 45.9 mm93 parts4LApache-2.04
AVR/ArduinoButterflynet
unit117
30 × 430 mm270 parts4LMIT1
STM32USB-C-Portable-PSU
Ng-Chen-Xuan
58 × 58 mm151 parts4LCERN-OHL-S-2.00
The IS31FL3731-QF in open source designs
The gallery holds 5 open source boards using the IS31FL3731-QF from 5 GitHub repositories; a typical one measures about 58 × 141.1 mm and carries around 270 components.
60% use four copper layers or more, and 100% carry an open source license.
The most starred is Optical keyboard mx by girishji.
Microcontrollers on boards using the IS31FL3731-QF
What boards using the IS31FL3731-QF are built for
IS31FL3731-QF: common questions
Where can I find a IS31FL3731-QF reference design?
Each of the 5 boards on this page is a real design using the IS31FL3731-QF. 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 IS31FL3731-QF use?
Most are built on AVR/Arduino (2), Microchip SAM (1) and STM32 (1).
How big is a typical board using the IS31FL3731-QF?
The median is 58 × 141.1 mm, and 40% are two-layer designs.
What is the most popular open source board using the IS31FL3731-QF?
By GitHub stars, Optical keyboard mx by girishji, with 22 stars.
Can I simulate one of these boards using the IS31FL3731-QF 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.