2,252 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.
ESP32High-Performance-DAC-system
saketharjun12-boop
226.7 × 138.9 mm173 parts4LNo license1
MXKeys
velvia-fifty
202.6 × 128.5 mm164 parts2LCC-BY-NC-4.01
Cyberdeck Carrier for LattePanda Mu
imtua
160 × 80 mm147 parts4LGPL-3.01
Eurorack busboard singlerow
yry-dev
414 × 62 mm146 parts4LMIT1
FD PCB
CaptainOrangeSparrow
113.7 × 71.6 mm146 parts2LNo license1
STM32MidiLedController hw
cracked-machine
99.8 × 100.1 mm138 parts2LNo license1
Raspberry PiUsb3.1-Ethernet-RP2040-I2S HUB
Tanawin1701d
100 × 100 mm136 parts4LNo license1
RP2040/RP2350Defcon sstv badge
livitup
185.7 × 199 mm135 parts4LMIT1
Io
tkleisas
180 × 210 mm135 parts2LMIT1
Noise toaster
adeboni
128 × 129 mm133 parts2LGPL-3.01
Psoc5power
iduwhux
96.8 × 97 mm133 parts2LNo license1
Mixer
masl123
60 × 102 mm130 parts2LTAPR-OHL-1.01
AVR/ArduinoMulti vu eurorack
jjradler
41.3 × 109.5 mm130 parts2LCC0-1.01
STM32LaserHarp3 - V2
amonbenson
79.8 × 99.1 mm129 parts2LNo license1
PICSimpleDigital
codeandrelax
75 × 78 mm127 parts2LMIT1
Solstrejf voiceboard core
KamikazeVildsvin
119.4 × 83.8 mm123 parts2LGPL-3.01
AVR/ArduinoIR remote controlled amplifier main board
ak1211
159 × 100 mm123 parts2LMIT1
STM32BassStationSequencerMidiController
249.6 × 122.6 mm122 parts4LNo license1
MStereo2
mgosselin
159.5 × 120 mm118 parts4LNo license1
DIYAH Main r0p0
matt-txrx
114.3 × 104.1 mm116 parts2LNo license1
HDMI2USB-TOFE-Milkymist
timvideos
110 × 116.3 mm115 parts2LCC-BY-SA-4.01
Microchip SAMGateDr mainboard
PajamaLlamaLand
47 × 106 mm111 parts4LNo license1
Bocc ce2
erincyldz
100 × 100 mm111 parts2LNo license1
PICAcolyteHandPICd24
stevenchadburrow
100 × 100 mm108 parts4LGPL-3.01
STM32Chromapi motherboard
Mowibox
88.1 × 59.4 mm105 parts4LApache-2.01
ClassH PCB FINAL
OSHE-Github
152.4 × 82.6 mm105 parts2LNo license1
Nordic nRFAerolinkers hw
aerolinkers
36 × 36 mm105 parts4LNo license1
ESP32Reverb
DynamicWhiteHat
82.6 × 74.3 mm102 parts2LNo license1
AVR/ArduinoThe Spankulator
shannon-greenlight
60.4 × 110 mm100 parts4LNo license1
RP2040/RP2350Picotouch pad
todbot
207.5 × 38 mm100 parts2LGPL-3.01
Drone ting
cairanvanrooyen
170 × 90 mm99 parts2LNo license1
K band fmcw radar
HearnChristian
66 × 46 mm99 parts4LNo license1
Speek amp
JBlitzar
120 × 80 mm98 parts2LGPL-3.01
CS4272-Dev-Board
tomeh2
83.1 × 57.6 mm96 parts2LMIT1
ESP32T8-Sequencer
lluisestape-upc
290 × 210 mm96 parts2LMIT1
TransimpedanceAmplifier
philipturner
92.5 × 86.5 mm95 parts2LMIT1
Browse boards by part
AMS1117-3.3 1034USBLC6-2SC6 836RP2040 609W25Q128JVS 388TL072 309AP2112K-3.3 308TL074 274ESP32-S3-WROOM-1 266CH340C 242L7805 224Pico 21874HC595 213USBLC6-2P6 200LM358 19074LS04 175AP2112K-3.3TRG1 173ESP32-WROOM-32 167SRV05-4 165Arduino_Nano_v3.x 15974LS245 156LM7805_TO220 15574LS138 152W25Q128JVSIQ 15174LS32 148