2,292 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.
Microchip SAMTouchBoard
8-Lambda-8
132.9 × 130 mm277 parts2LGPL-3.00
RP2040/RP2350Nref motherboard
cetola
122.6 × 75.9 mm269 parts6LNo license0
Aurora icepower booster
jpsamuelson
145.6 × 200 mm265 parts2LNo license0
NXPSpectrum-Audio-Amp
anasarif23
178.8 × 171 mm242 parts4LNo license0
RP2040/RP2350Anarchytechnobox
edwindertien
132.6 × 100 mm236 parts4LNo license0
STM32Digital amplifier2
bybzmt
94 × 120 mm233 parts4LNo license0
STM32SkripsieProject
scout-cc
149.2 × 185.3 mm232 parts4LNo license0
STM32Project-Synthia
Engineering-House
282.4 × 255.2 mm226 parts2LNo license0
ESP32Handset
JeremyLakeyJr
66 × 142 mm217 parts4LNo license0
STM32Busy toad
giacomo-ascari
180 × 70 mm215 parts4LNo license0
STM32PREAMP2311
dmsd-lab
234 × 58 mm209 parts2LCERN-OHL-S-2.00
Dual PT2399 Digi Delay
ilya-n
148.8 × 152.9 mm202 parts2LNo license0
AGBM-02 AA 1-1
AnasSarkiz
131.3 × 72.4 mm200 parts4LCC-BY-SA-4.00
STM32Asynth2osc
madees
69 × 106 mm194 parts4LGPL-3.00
FPGACourant
KrasForge
160 × 100 mm180 parts6LMIT0
Snark barker mini
computerguy096
103.7 × 78.5 mm175 parts4LCC-BY-SA-4.00
Wzmacniacz klasy-D-z modulem-BT
damianjarczok
135.1 × 90.9 mm172 parts4LNo license0
RP2040/RP2350Adafruit Feather RP2040 Prop-Maker
dcuccia
50.8 × 22.9 mm160 parts2LMIT0
Raspberry PiMeerya dev
dcmcshan
144.8 × 73 mm155 parts6LNo license0
STM32ChromaDeck
FBIopeningUPP
160 × 160.1 mm152 parts6LMIT0
03 quad vca mixer
bmurauer
70 × 100 mm149 parts2LNo license0
Lightsabre dac
Darmur
65 × 56 mm137 parts4LCC0-1.00
AVR/ArduinoDigital synth
giacomogramaglia
165 × 90.1 mm135 parts2LNo license0
Lyrebird main
tm-treehouse
254.1 × 77.1 mm133 parts2LNo license0
STM32Distorsion
Burgos
126.4 × 94.6 mm129 parts2LNo license0
VCO
Desval27
160 × 233.4 mm129 parts2LMIT0
NXP1uT u v1 1
rhinocerose
149 × 28.7 mm128 parts2LNo license0
FPGAEurorack-DIGI
cookiemonsternz
40 × 100 mm127 parts6LNo license0
STM32Guitar pedal
herculanodavi
110 × 96 mm127 parts4LMIT0
ESP32Prod board
family-mruby
90 × 70 mm125 parts4LCERN-OHL-S-2.00
ESP32Sunrise clock main board
atoomnetmarc
160 × 106.7 mm124 parts2LApache-2.00
2.1-sound system
Royaldeadshot
102.7 × 112.3 mm122 parts4LNo license0
OnerLAB BoCu
nahsteoner
78 × 118 mm120 parts2LNo license0
Phono adc eval
birdybro
130 × 90 mm119 parts4LGPL-3.00
RP2040/RP2350River
HenryLi-0
56 × 80 mm118 parts2LCERN-OHL-S-2.00
NXPMcguitarpedal
frsaba
123 × 113.5 mm113 parts2LNo license0
Browse boards by part
AMS1117-3.3 1069USBLC6-2SC6 866RP2040 632W25Q128JVS 394TL072 319AP2112K-3.3 313TL074 281ESP32-S3-WROOM-1 268CH340C 249L7805 229Pico 22174HC595 218USBLC6-2P6 206LM358 20074LS04 180AP2112K-3.3TRG1 179ESP32-WROOM-32 169LM7805_TO220 167SRV05-4 165Arduino_Nano_v3.x 16474LS245 160W25Q128JVSIQ 15774LS138 15574LS32 152