740 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.
Raspberry PiHACK CLUB RELATED
Studented0
88 × 155 mm93 parts4LMIT1
ESP32Koganeee
Sujay-Golla
66 × 71 mm92 parts4LMIT1
RP2040/RP2350SumaShield
hugelton
83 × 99 mm83 parts2LMIT1
ESP32OpenDual-Reader
nuerolynx
36 × 124 mm68 parts6LNo license1
ESP32Seed pedal
TMANTsmith
54 × 106 mm67 parts4LNo license1
BMS
Wierdwizard2587
179 × 44 mm64 parts2LNo license1
NXPMdt chipdown
andykarpov
94 × 79.6 mm61 parts2LMIT1
ESP32ClearBell V0.2
akoerner-dev
110 × 60 mm57 parts4LMIT1
ESP32StreamerBasic
alantrundle
108 × 60.9 mm51 parts2LNo license1
ESP32OpenAlarm
Ultikynnys
85 × 72.5 mm48 parts2LMIT1
Nano supply
xx0x
162 × 40 mm46 parts2LCERN-OHL-P-2.01
RP2040/RP2350Minimal-Player
tharejarehan0-a11y
139.3 × 69.3 mm44 parts2LNo license1
Nordic nRFKoe Pro v2
yukihamada
45 × 30 mm43 parts4LMIT1
Eurorack psu
jojo-monk
203.8 × 88.6 mm42 parts2LNo license1
Ignis overdrive
Quee0
65 × 99 mm38 parts2LCC-BY-NC-4.01
AVR/ArduinoHSOD-Home-Security-Of-DOOM
NattDocumented
94.6 × 120.6 mm35 parts2LNo license1
Voltage Processor
JopjeKnopje
25.4 × 100 mm31 parts2LNo license1
Transcribe RS422-fork
cyberboy666
100 × 45 mm31 parts2LNo license1
Speaker
AbdullahHendy
73.8 × 60.1 mm28 parts2LNo license1
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joaln27
56 × 20 mm25 parts2LApache-2.01
Mini-Amplifier
RetroStack
57 × 30 mm23 parts2LMIT1
300W 13.56MHz Class-D RF Power Amplifier
Vickyrrrrrr
80 × 50 mm21 parts2LNo license1
Carrier board
doug7410
140 × 100 mm21 parts2LMIT1
Lightning in a bottle
rolypolytoy
22 × 32 mm20 parts4LUnlicense1
ESP32Eidolon
alaotach
52 × 43 mm19 parts2LNo license1
Passive av 500
njhollinghurst
57.2 × 29.8 mm18 parts2LCC0-1.01
ESP32AOILED
aoishik
82.1 × 64 mm16 parts2LNo license1
Ribbon synth
ideocentric
50.8 × 101.6 mm16 parts2LMIT1
AVR/ArduinoLEDMusicVisualizer
VinayBhagavath
61.5 × 50.3 mm16 parts2LNo license1
RP2040/RP2350Sonibox
trappitsch
100 × 110 mm16 parts2LMIT1
ESP32BarSync
barna81
95 × 60 mm16 parts2LCC-BY-NC-4.01
AudioAmplifier-5600x
Rohan317685
40 × 30 mm13 parts2LMIT1
ESP32WiFi Radio Project
Minall13
111 × 69 mm9 parts2LCC-BY-NC-4.01
Raspberry PiBluetooth audio tx
Unosoluciones
85 × 55 mm7 parts2LNo license1
ESP32Nudge
TheOtherTwinCoder
31 × 42.6 mm4 parts2LNo license1- schematic only · 84 parts
Circuit codex
TheAnalogMaker
84 partsMIT1
Browse boards by part
AMS1117-3.3 345USBLC6-2SC6 296RP2040 224W25Q128JVS 135TL072 118CH340C 116AP2112K-3.3 103ESP32-S3-WROOM-1 97TL074 94AP2112K-3.3TRG1 82SRV05-4 73W25Q128JVSIQ 73USBLC6-2P6 70Pico 52L7805 50XC6206P332MR 50MCP73831T-2ACI/OT 49SN65HVD230 49AMS1117-5.0 48ESP32-S3-WROOM-1-N16R8 48LM393 44BME280 43DW01A 43LAN8710A-EZC(QFN32) 43