2,432 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.
Pmg
0x007E
81.3 × 40.6 mm56 parts2LCC-BY-NC-4.00
ESP32Pixel snap voice
zeeman-effect
64 × 86 mm55 parts4LNo license0
RP2040/RP2350Learnboard
bobis1
281.4 × 126 mm55 parts2LNo license0
STM32MiniMPE
adrienles
58.5 × 50.3 mm55 parts4LNo license0
Raspberry PiAi orchestrator
ianisms
91.4 × 121.9 mm54 parts6LMIT0
ESP32Hand System Rev 1
NHuang58
154.7 × 113.4 mm54 parts4LNo license0
Microchip SAMSamd21g midi tool
newdigate
81.4 × 60 mm54 parts4LMIT0
Marble sequencer circuits
felicien-brochu
290 × 51.6 mm53 parts2LNo license0
Buffered-Mult
domesticmouse
30 × 110 mm53 parts2LApache-2.00
Tpa6110-stereo amp input router
manhoosbilli1
25.4 × 86 mm52 parts2LNo license0
RP2040/RP2350Hyperactive radio
activexray
88 × 60 mm52 parts4LNo license0
ESP32Internet radio
Amagami45
97.5 × 97.5 mm52 parts2LAGPL-3.00
Fuzzzzzzz guitar pedal
HenriqueStelzer
77 × 60 mm49 parts2LNo license0
UGent-AnalogDesign-Class-D-Amp
Daellhin
68.3 × 99 mm48 parts2LNo license0
Quack face
HeyPCB
128 × 51.4 mm47 parts4LCERN-OHL-S-2.00
ESP32Adafruit QT Py ESP32-S3
gkuegler
17.8 × 20.7 mm47 parts4LNo license0
Am radio
gjyoung1974
110 × 83 mm47 parts2LNo license0
ESP328 switches rf
TR-JAYAVARDHAN-SINGH
180.4 × 147.9 mm47 parts2LNo license0
MFOS Wall-Wart PSU (Eurorack)
ckarcz
80 × 100 mm46 parts2LMIT0
Watson assistant
ibm-dev-incubator
65 × 56 mm45 parts4LCERN-OHL-1.20
ESP32Esp32-stereo audio recorder
Harshad-vali
62.5 × 44 mm45 parts2LNo license0
Mimeofreq
pf-ece
60 × 60 mm45 parts2LNo license0
ESP32GlucoBit
jdharcourt
55 × 30.4 mm43 parts4LNo license0
Cacophonator
phastmike
70 × 70 mm43 parts2LNo license0
NXPDSP-Guitar-MultiFX
MahmoudBasio
133.6 × 112.9 mm42 parts2LMIT0
Super DMG CPU
awhit003
83 × 78.5 mm42 parts2LCC-BY-SA-4.00
Raspberry PiClementina hardware
fran150
172.7 × 108.6 mm42 parts2LGPL-3.00
Audio preamplifier
flavian112
81.3 × 58.4 mm42 parts2LNo license0
ESP32Seadream-Rocketry-Avionics
BarneyRye
26 × 63 mm41 parts2LNo license0
RP2040/RP2350TWSUDiySynthKit
GreeniusGenius
198.4 × 65 mm40 parts2LNo license0
ESP32YerraGlasses
rbala25
74.5 × 21.5 mm40 parts4LNo license0
Sony mhc gn1300d-5.1-revival
stsukesh
200 × 150 mm40 parts2LMIT0
Audio amp
Stylt1
52.1 × 75.1 mm40 parts4LCC-BY-NC-4.00
ESP32GameBoy-Mp3-Plater
amkhan2009
52.8 × 68.5 mm40 parts2LMIT0
SuborFpga
2bitsin
97.8 × 108 mm39 parts2LNo license0
LA0W5
etherkit
60 × 50 mm39 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