µ[micro]electronics info

A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.

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Disclaimer

Because I have not tested all electronic circuits mentioned on this pages, I cannot attest to their accuracy; therefore, I do not provide a warranty of any kind and cannot be held responsible in any manner.

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Audio

Rundfunker - an WLAN MP3 player

The Rundfunker is a tabletop mp3 player that scans the WLAN for local audio sources and is able to play shared audio-files.

dsPIC WAV Player

Audio playback using the dsPIC on a simple breadboard layout with a free code library for SD card access from Microchip.

AVR-MIDI - an USB MIDI-class compliant device

This is an inexpensive DIY MIDI controller device for USB. It consists of a simple AVR ATMega16 with driver software from Objective Development (see).

Sound synthesizers

Sound Effects Synthesizer and other synthesizers.

Experiments with DSP

This project is an experiment of the Digital Signal Processing with a cheap microcontroller instead of an ordinary digital signal processor. Recent 8 bit microcontrollers have sufficient processing performance so that they can be used for simple audio signal processing.

Motion controlled MP3 player

The MP3 player does not have any buttons nor dials that shown in right photo and it has an acceleration sensor instead of the mechanical switches. Therefore all playback commands to the player are given in defined motions, such as inclination, tilt and shock. The player detects the motion with the built-in acceleration sensor and recognize it as a playback control command. As the result, it came to not seem an audio player in appearance.

dsPIC Synthesizer

dsPIC-based voice MIDI synthesizer by Michael Herman

AVR music player

Standalone AVR Music Player "Sound Bug".

EchoMP3 - small MP3 player

Cheap and excellent MP3 player based on VS1002 MP3 decoder, PIC18F45x microcontroller and LCD display from Nokia 3310 cell phone.

Homebuilt MP3 Player with STA013

If you’re looking for a build-it-yourself, standalone, USB harddrive based MP3 player, this may be of interest to you.

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