11 open source boards using the APS6404L-3SQR
Real designs built with the APS6404L-3SQR, 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/RP2350Picocart64 v2
khill25
105 × 60 mm152 parts4LCustom license26
RP2040/RP2350Panel rp2350 20x20 rev2
iorodeo
45 × 45 mm556 parts6LCC-BY-4.01
NXPMdt chipdown
andykarpov
94 × 79.6 mm61 parts2LMIT1
STM32TSC board
bartkepl
100 × 100 mm408 parts4LMIT0
Tensorrail
skillsbuffcom
102 × 70 mm37 parts2LNo license0
RP2040/RP2350Panel rp2350 20x20 temp
45 × 45 mm556 parts6LCC-BY-4.01
FPGADspod up5k
emeb
26.4 × 41.7 mm63 parts4LMIT10
RP2040/RP2350Panel rp2350 20x20 tmp
45 × 45 mm556 parts6LCC-BY-4.01
RP2040/RP2350Panel rp2354 20x20
45 × 45 mm556 parts6LCC-BY-4.01
RP2040/RP2350Driver rp2350
45 × 45 mm462 parts6LCC-BY-4.01
RP2040/RP2350Panel rp2350 18x18
45 × 45 mm462 parts6LCC-BY-4.01
The APS6404L-3SQR in open source designs
The gallery holds 11 open source boards using the APS6404L-3SQR from 6 GitHub repositories; a typical one measures about 45 × 45 mm and carries around 462 components.
82% use four copper layers or more, and 82% carry an open source license.
The most starred is Picocart64 v2 by khill25.
Microcontrollers on boards using the APS6404L-3SQR
What boards using the APS6404L-3SQR are built for
APS6404L-3SQR: common questions
Where can I find a APS6404L-3SQR reference design?
Each of the 11 boards on this page is a real design using the APS6404L-3SQR. 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 APS6404L-3SQR use?
Most are built on RP2040/RP2350 (7), FPGA (1), NXP (1) and STM32 (1).
How big is a typical board using the APS6404L-3SQR?
The median is 45 × 45 mm, and 18% are two-layer designs.
What is the most popular open source board using the APS6404L-3SQR?
By GitHub stars, Picocart64 v2 by khill25, with 26 stars.
Can I simulate one of these boards using the APS6404L-3SQR 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.