Download ProtoFlow
by GEIGEIGEIST
KLOR is 36-42 keys column-staggered split keyboard. It supports a per key RGB matrix, encoders, OLED displays, haptic feedback, audio, a Pixart Paw3204 trackball and four different layouts, through brake off parts.
by philippe44
all-in-one audio board, works specially well with LogitechMediaServer
by newdigate
Hardware Design: Eurorack shield for teensy 4.1 with 14 in / 16 out analog channels
by shmoergh
Fully analog DIY-friendly modular synth
by nickajeglin
A collection of easy to solder DIY eurorack PCB's
by ojg
Microphone Pre-amplifier
by mzuelch
Analog Synth Eurorack Modules
by ijnekenamay
eurorack modular synthesizers projects using Arduino.
by 30350n
PCB panels for Mutable Instruments eurorack modules
by mattb
An opamp board to scale Eurorack control voltages into and out of ranges compatible with a Teensy MCU board
by hkzlab
Sound Card for the ISA (8bit) bus sporting Sound Blaster / Sound Blaster PRO emulation via ES688F chip, and a real Yamaha OPL3 FM Synth. It's also completely jumper configurable.
by thawney
Pedal Pi V2 by Thawney is an all new and regularly maintained Pedal-Pi by electrosmash; a lo-fi programmable guitar pedal that works with the Raspberry Pi ZERO Board. My repository contains all of the information needed to create your own board from scratch unlike Pedal Pi who only share effect code.
by vonkonow
Leet AI – Wireless Synthesizer Ensemble with AI-powered composition for endless inspiration
by lukaszmargielewski
Minimal EEG device with ADS1299 amplifier and NRF51822 Bluetooth LE chip
by luminationlabs
Audio development board based on ESP32-S3
by vd-rd
Open hardware compute module with Allwinner A13 (ARM-A8 @1GHz), DDR3 (max 512MB) and expansions (USB, GPIO, WiFi, LCD, Audio)
by rauli2780
Open-source drop-in PCB replacement for Google Nest Audio with Home Assistant integration
by MichaelThessel
MP3 player for small children - firmware & PCB schematic
by the-vty
BMW IBus Bluetooth audio
by sparkfun
Prototyping board combined with the fundamental parts of a guitar stompbox.
by newdigate
Hardware Design: 16 channel analog control voltage shield for teensy 4.1; 8ch in / 8ch out; +-10V @ 16bits/sample;
by cajunpanda
A HiFi audio mod for various Game Boy models
by ohdsp
Open Hardware DSP Platform - Class D Amplifier TDA7498, TDA7492 PCB design - Open Source Hardware - Untested
by stefaweb
The Q17 is an error correction HIFI amplifier based on the QUAD405 current dumping principle.
by DIYSynthMNL
A multi saturation module with voltage controlled wet/dry mix
by robertklee
Audio Effects Circuit Design & Embedded Systems (STM32F407 microcontroller) Design Project. Goal: with an analog audio input, pitch shift or add echo effect and output to a speaker. Circuit: designed AC level shifting circuit, active bandpass filter, LED matrix display and DAC quantization error smoothing in KiCad; manufactured as a printed circuit board; soldered components and tested PCB. Embedded Systems: FFT to extract frequency domain; NVIC with timer-raised interrupts to service analog sampling, button debouncing, and image display on LED matrix; memory and clock cycle optimizations
by ohdsp
Open Hardware DSP Platform - XMOS xCORE200 Platform based DSP and microcontroller PCB design - open source hardware - untested
by AShadyPCB
Silent 25 kHz H-bridge replacement for a whining 24V tunable white/orange LED shelf controller. STM32 + BLE, reverse engineered from the original, with scope and audio FFT documentation.
by UC3Music
UC3Music-e version of the CMoy pocket headphone amplifier (originally designed by Chu Moy )
by ohdsp
Open Hardware DSP Platform ADAU1966 16 Channel DAC - Open Source Hardware
by har-in-air
Kicad schematic and layout for ESP32-C3 + MPU9250 + MS5611 audio vario
by DADDesign-Projects
"Asynchronous SPDIF Mixer" synchronizes and mixes up to three asynchronous S/PDIF streams into a 48 kHz output. Running on an STM32H743 and developed in C++ with CubeIDE, it compensates for drift with interpolation. A custom KiCad-designed PCB hosts this real-time audio processing solution.
