129 open source boards using the ProMicro
Real designs built with the ProMicro, 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.
AVR/ArduinoRedox keyboard
mattdibi
162.2 × 126.5 mm77 parts2LMIT2.0k
KLOR
GEIGEIGEIST
160.2 × 118.3 mm79 parts2LGPL-3.01.2k
Chocofi
pashutk
111.3 × 90 mm50 parts2LCERN-OHL-P-2.0781
ErgoDash
omkbd
149.9 × 127.4 mm183 parts2LMIT725
AVR/ArduinoSU120 Yakitori Keyboard
e3w2q
98.8 × 98 mm133 parts2LMIT393
ErgoTravel
jpconstantineau
137.9 × 92.7 mm187 parts2LMIT283
SofleKeyboard
db-ok
143.4 × 111.8 mm85 parts2LMIT262
Avalanche hotswap
vlkv
179.7 × 122.8 mm139 parts2LMIT182
Keyboard
Spaceboards
415.5 × 73 mm127 parts2LCERN-OHL-W-2.0144
AVR/ArduinoLagom
mohoyt
305.6 × 121.8 mm167 parts2LCC-BY-NC-4.0143
AVR/ArduinoSmall paintbrush
artseyio
94 × 47 mm19 parts2LNo license135
ErgoTravelXT
FIXMBR
157 × 90 mm70 parts2LGPL-3.0129
ErgoDone
ktec-hq
182.8 × 158.9 mm141 partsGPL-3.0123
ErgoMaxReversible
LouWii
182.8 × 169.2 mm96 parts2LMIT122
Pinky4
tamanishi
139 × 120 mm73 parts2LMIT119
Nijuni
krikun98
153.6 × 95.3 mm64 parts2LNo license113
AVR/ArduinoBanime40
ChrisChrisLoLo
190.5 × 76.2 mm88 parts2LCC-BY-SA-4.0111
Kapl
keyzog
141.5 × 116 mm119 parts2LMIT87
AVR/ArduinoHumla
jimmerricks
210.2 × 94.3 mm77 parts2LMIT85
Pinky3
137 × 100.9 mm59 parts2LMIT83
Chocofly
304 × 133.5 mm134 parts2LMIT75
AVR/ArduinoLitl keyboard
248.3 × 99.8 mm103 parts2LCC-BY-NC-4.075
AVR/ArduinoLergo modular
AxelVoitier
96.3 × 96 mm72 parts2LNo license70
AVR/ArduinoKbic65
b-karl
313.3 × 131.6 mm150 parts2LMIT67
Jiran classic
Ladniy
152.4 × 104.7 mm130 parts2LCC-BY-NC-4.067
TripleController
timville85
40.6 × 64.8 mm4 parts2LGPL-3.063
ULK pg1316s
Goga64
275.5 × 105.6 mm93 parts2LMIT57
AVR/ArduinoLittle Big Scroll 6
TweetyDaBird
59.2 × 87 mm21 parts2LCC-BY-SA-4.055
AVR/ArduinoQol56
eswai
272 × 86 mm171 parts2LNo license48
AVR/ArduinoQuefrency right-65
keebio
178.6 × 99.4 mm100 parts2LMIT45
Lunakey Mini
yoichiro
140.5 × 100.6 mm112 parts2LCC-BY-NC-4.042
Peridot steno
nekoewen
190.5 × 108 mm59 parts2LMIT36
Southpaw
kelvinhall05
362.9 × 103.6 mm160 parts2LGPL-3.035
Mintboard
flurples
89.4 × 54.8 mm84 parts2LGPL-3.030
Nice60
Nicell
285 × 94.6 mm140 parts2LMIT28
Freaku4X
190.5 × 95.3 mm86 parts2LGPL-3.022
The ProMicro in open source designs
The gallery holds 129 open source boards using the ProMicro from 95 GitHub repositories; a typical one measures about 152.4 × 99.4 mm and carries around 79 components.
100% are two-layer designs, the rest use four layers or more, and 69% carry an open source license.
The most starred is Lily58 by kata0510.
Parts used alongside the ProMicro
Microcontrollers on boards using the ProMicro
What boards using the ProMicro are built for
ProMicro: common questions
Where can I find a ProMicro reference design?
Each of the 129 boards on this page is a real design using the ProMicro. 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 ProMicro?
The 74HC138, SSD1306, TRRS and USBLC6-2SC6 appear in the most repositories here.
Which microcontrollers do boards using the ProMicro use?
Most are built on AVR/Arduino (41) and RP2040/RP2350 (2).
How big is a typical board using the ProMicro?
The median is 152.4 × 99.4 mm, and 100% are two-layer designs.
What is the most popular open source board using the ProMicro?
By GitHub stars, Lily58 by kata0510, with 2,299 stars.
Can I simulate one of these boards using the ProMicro 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.