2,480 open source boards in Audio
Amplifiers, DACs, synthesizers, Eurorack modules, MIDI and guitar pedals. Every board here is a public GitHub project with its KiCad files, read for size, layers and parts. Pick one close to your design and simulate its firmware on HardLabs before you build it.
RP2040/RP2350Defcon sstv badge.backup
livitup
185.7 × 199 mm135 parts4LMIT1
RP2040/RP2350Laser controller
adeboni
30 × 109 mm124 parts2LGPL-3.01
Ud29
iduwhux
97.5 × 97.5 mm123 parts2LNo license1
AVR/ArduinoBoard
ak1211
160 × 100 mm118 parts2LMIT1
PICSimpleDigital THT electrolytes
codeandrelax
75 × 78 mm118 parts2LMIT1
Boss ce2 assembly
erincyldz
75 × 100 mm111 parts2LNo license1
Mixer BACK
masl123
60 × 102 mm99 parts2LTAPR-OHL-1.01
STM32Mini v0.3
northernpaws
20 × 40 mm94 parts8LCERN-OHL-S-2.01
Raspberry PiHACK CLUB RELATEDbackup
Studented0
88 × 155 mm93 parts4LMIT1
Envelope follower
OSHE-Github
67.8 × 82.7 mm93 parts4LNo license1
STM32LaserHarp3
amonbenson
99.1 × 59.7 mm88 parts2LNo license1
Control board
pmusgrave
157.5 × 157.5 mm86 parts2LNo license1
RP2040/RP2350Picotouch pad proto
todbot
190 × 34 mm79 parts2LGPL-3.01
RP2040/RP2350Virgil Controller
da-penguin-guy
128.1 × 87 mm74 parts2LNo license1
PracticeBoard
philipturner
34.7 × 59.3 mm69 parts2LMIT1
RP2040/RP2350ADC and amplifier pico breakout board
Jolt8
55 × 80.5 mm66 parts4LNo license1
ImtKeeb-Ortho62
imtua
276 × 87 mm62 parts2LGPL-3.01
RP2040/RP2350Crossfire
lightsource-nz
140 × 80 mm61 parts2LNo license1
Endstufe
FordPrfkt
165 × 135 mm59 parts2LNo license1
Solstrejf Modulation Matrix
KamikazeVildsvin
165.1 × 246.9 mm52 parts2LGPL-3.01
RP2040/RP2350Speek rx
JBlitzar
80 × 60 mm51 parts2LGPL-3.01
ESP32Full
TMANTsmith
54 × 106 mm51 parts4LNo license1
Flip flops
ajjackson
29.8 × 106.7 mm49 parts2LNo license1
ESP32ClearBell Ausseneinheit
akoerner-dev
110 × 60 mm45 parts2LMIT1
TPA3122D2 Amplifier
halherta
80 × 80 mm45 parts2LNo license1
SSM3582 v02
matt-txrx
88.9 × 50.8 mm43 parts2LNo license1
AVR/ArduinoBMS MK2 attempt 1-using-Tp4506
Wierdwizard2587
226.6 × 64 mm42 parts2LNo license1
KoloredVerb
marcoallegretti
59.6 × 109.5 mm41 parts2LCustom license1
Es8388-breakout
yry-dev
24.5 × 25 mm36 parts2LMIT1
Voltage Processor
JopjeKnopje
80.2 × 100 mm31 parts2LNo license1
AVR/ArduinoAtmega BM83 RevB
Antonio-Balestrino
114.3 × 88.9 mm29 parts2LApache-2.01
RP2040/RP2350Momentum
rjhsun
30.5 × 67.3 mm25 parts2LNo license1
RP2040/RP2350Koe coin
yukihamada
26 × 26 mm24 parts4LMIT1
Master Thesis
MartinBraquet
47 × 38.4 mm23 parts4LMIT1
Audio amp lm386 mk1
andrsmllr
90.1 × 57.2 mm22 parts2LNo license1
300W 13.56MHz Class-D RF Power Amplifier
Vickyrrrrrr
80 × 50 mm21 parts2LNo license1
Browse boards by part
AMS1117-3.3 1176USBLC6-2SC6 971RP2040 698W25Q128JVS 419AP2112K-3.3 372TL072 338TL074 307ESP32-S3-WROOM-1 300CH340C 273L7805 264Pico 25074HC595 248USBLC6-2P6 235LM358 223AP2112K-3.3TRG1 202Arduino_Nano_v3.x 19474LS04 193LM7805_TO220 182ESP32-WROOM-32 18174LS245 171SRV05-4 169W25Q128JVSIQ 16974LS138 16274LS32 161