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.
EA801---Turma-C
Edson8101
175 × 90 mm39 parts2LMIT0
STM32Device1
akularya6-del
15 × 31 mm38 parts4LNo license0
Ring modulator
abrugsch
63.5 × 47 mm38 parts2LUnlicense0
AVR/ArduinoScout
morgobongo
145.3 × 44.5 mm38 parts2LCustom license0
STM32Micro-VX
RoboKamu
41.8 × 33 mm37 parts4LNo license0
Bandpass amplifier shield
SAakbarnezhad
68.6 × 53.3 mm37 parts4LCC-BY-SA-4.00
YetAnotherTNC
solmorth
55 × 85 mm36 parts2LNo license0
AVR/ArduinoPiano Lights
ddribin
98 × 51.6 mm36 parts2LMIT0
HockeyHelmetHeadphonesLeft
Colden-Rother
60.8 × 58 mm35 parts2LCC-BY-NC-4.00
AVR/ArduinoBREAD Slice
feastorg
70 × 100 mm35 parts2LGPL-3.00
V007 LTspice 26 in 5 steps
DesignGraveyard
50.5 × 42 mm35 parts2LNo license0
GD32GD32WavePlayer
JennyDigital
50 × 54 mm31 parts4LNo license0
ESP32Voice assistant for-HA
Matyas604
75.1 × 44.6 mm30 parts2LNo license0
CrystalBall
wieslawsoltes
100 × 90 mm30 parts2LNo license0
4-Stage-BJT-Amplifier
eblair363
80 × 50 mm29 parts2LNo license0
I2s muliplexer
adoble
72 × 67 mm29 parts2LNo license0
Asa
0x007E
54.1 × 30.5 mm29 parts2LCC-BY-NC-4.00
RP2040/RP2350Microphone
joshitha-c
33.3 × 36.5 mm28 parts2LNo license0
ESP32Bone conduction hearing aid
kishantm1
40 × 30 mm28 parts2LNo license0
Audio breakout
pui4
21.4 × 34 mm28 parts2LNo license0
PSU
domesticmouse
28 × 110 mm28 parts2LCERN-OHL-P-2.00
AVB-Eurorack
scrambletools
84.7 × 30 mm28 parts2LNo license0
ESP32Tuyyo-Hackclub
andaniayan-jpg
99.9 × 99.9 mm28 parts2LNo license0
Oltronix D400
hevanaa
92 × 51 mm27 parts2LCERN-OHL-S-2.00
Tda2050-dev
gmazzucchi
81.3 × 80.6 mm27 parts2LNo license0
Lna ai
cholan2100
34 × 29 mm26 parts2LNo license0
Guitardawliteos
ArdChoille637
21 × 47.4 mm26 parts2LNo license0
Mono layout v04d
ewinkuo1-sudo
115 × 90 mm26 parts2LMIT0
ESP32Audio signal generator
igor-gia
90.5 × 68 mm26 parts2LMIT0
TS3A5017-Mixer
brokebit
37.9 × 42.9 mm25 parts4LNo license0
AVR/ArduinoArduino music box
hschwar2
103.5 × 87 mm24 parts2LNo license0
Volt
wenbang24
43.4 × 25.6 mm24 parts2LNo license0
ESP32Quiet trace
rwrife
80 × 52 mm24 parts2LMIT0
Low noise microphone preamplifier
AhmedYehia-M23
60.1 × 40 mm24 parts2LNo license0
Audio module
NEOgHacking
25.5 × 32 mm24 parts2LNo license0
Usbc-3.5mm dac amp adapter
Vaaxs
62.5 × 22.5 mm24 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