22 open source boards using the C5446
Real designs built with the C5446, 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.
ESP32Kaleido 6" controller based on epdiy v7
vroland
138.1 × 104.6 mm121 parts4LCC-BY-SA-4.073
RP2040/RP2350Rana Tadpole V2
rana-sylvatica
172 × 107.7 mm144 parts2LNo license21
STM32Custom keyboard (f303)
howardt12345
395.3 × 138.1 mm421 parts2LCC-BY-NC-4.014
RP2040/RP2350MiniRazz
purdeaandrei
142.2 × 48 mm55 parts4LCERN-OHL-P-2.014
STM32Foc8313
williamhaarhoff
35 × 35 mm84 parts4LNo license9
STM32Maglev driver
Janky-Jingle-Crew
85 × 85 mm53 parts4LNo license2
STM32Bldc hw
igorwolfs
100 × 60 mm175 parts4LGPL-3.01
STM32Vaucasy left
engemkeres
154 × 129.9 mm105 parts2LMIT1
Raspberry PiCentauri2350
hridcode
28.2 × 71.3 mm60 parts2LNo license1
AT86RF215-Breakout-Board
udayVsSharda
75 × 50 mm42 parts4LCERN-OHL-P-2.01
STM32Drachma
coincase1
138.1 × 119.1 mm114 parts4LNo license0
Raspberry PiTesseract
65 × 100 mm82 parts4LNo license0
Nanoc6 mppt rs485 base
chinawrj
62 × 28 mm37 parts2LMIT0
ESP32Epdiy v7
100 × 55 mm108 parts4LCC-BY-SA-4.073
RP2040/RP2350Rana Tadpole
172 × 107 mm53 parts2LNo license21
RP2040/RP2350Monorail Steam Reduced
KiserDesigns
242.9 × 95.3 mm185 parts2LNo license18
STM32Custom keyboard (f103, fe2.1)
395.3 × 138.1 mm414 parts2LCC-BY-NC-4.014
STM32Vaucasy right
154 × 129.9 mm105 parts2LMIT1
Rana Tadpole DB
24 × 20.5 mm10 parts2LNo license21
STM32Custom keyboard (f303, fe2.1)
395.3 × 138.1 mm413 parts2LCC-BY-NC-4.014
STM32Keyboard0 - SK6812
377.8 × 134.1 mm329 parts2LCC-BY-NC-4.014
STM32Keyboard0
377.8 × 134.1 mm246 parts2LCC-BY-NC-4.014
The C5446 in open source designs
The gallery holds 22 open source boards using the C5446 from 14 GitHub repositories; a typical one measures about 140.2 × 102.3 mm and carries around 107 components.
59% are two-layer designs, the rest use four layers or more, and 36% carry an open source license.
The most starred is Kaleido 6" controller based on epdiy v7 by vroland.
Parts used alongside the C5446
Microcontrollers on boards using the C5446
What boards using the C5446 are built for
C5446: common questions
Where can I find a C5446 reference design?
Each of the 22 boards on this page is a real design using the C5446. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the C5446?
The C2040, C108516, C181692, C2827654 and C2827693 appear in the most repositories here.
Which microcontrollers do boards using the C5446 use?
Most are built on STM32 (11), RP2040/RP2350 (4), ESP32 (2) and Raspberry Pi (2).
How big is a typical board using the C5446?
The median is 140.2 × 102.3 mm, and 59% are two-layer designs.
What is the most popular open source board using the C5446?
By GitHub stars, Kaleido 6" controller based on epdiy v7 by vroland, with 73 stars.
Can I simulate one of these boards using the C5446 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.