Portable MP3 Player Based on AVR Butterfly

The purpose of developing this simple and cheap project is to use an AVR butterfly to create a portable MP3 player which is an open design in both hardware and software.

MIDI Drum Interface Based on PIC

A PIC16C84 microcontroller is used to build the MIDI drum interface circuit which will be placed between drum pads and computer or hardware sequencer.

Creating the Soundwave MP3 Device

Recording audio at specific times and storing it as an MP3 file into a compact Flash memory are the main functions of the Soundwave MP3.

MIDI Controller Using A Trumpet

The purpose of the project is to convert any standard trumpet into a fully functional MIDI controller and MIDI pass through device for up to 16 channels by combining custom hardware and software with the Yamaha Silent Brass pickup mute.

PIC18F458 Based MP3 Player

This MP3 was designed around the PIC18F458 and MMC/SD that support only FAT32.

Real-Time Audio processing Based on Arduino

The project is an experiment to illustrate that an Arduino can be used to create a real-time audio processing wherein the first set of examples alter an incoming audio signal to an audio output and the second set are outputted computed waveforms.