CC Dharmani shows how to easy connect a SD card to an ATMega 8 microcontroller.

How to connect an old C64 keyboard to the PC via USB - just for curiosity and skills.

A simple and handy 40x25 monochrome text display you can attach to your 8bit computer (based on Z80, 6502 etc.) as I/O device with parallel data bus.

An AVR-based small test application which implements read and write support for MMC, SD and SDHC cards.

This program tries to emulate the sound chip SID of the famous historical C64 Commodore computer (SID = Sound Interface Device). The SID emulator includes all registers of the original SID, only minor functions are not implemented yet.

USBTenki is an electronic project to interface sensors to an USB port for collecting weather related data such as temperature.

For some projects, a circuit making it possible to connect 12 buttons (including 4 directional buttons) to a PC using an USB port is very useful.

The goal of LCD2USB is to connect HD44780 based text LCD displays to various PCs via USB. LCD2USB was meant to be cheap and to be made of easily available parts. It is therefore based on the Atmel AVR Mega8 CPU and does not require any difficult to obtain parts like separate USB controllers and the like. The total cost (without display and pcb) are about 5 to 10 Euros. LCD2USB currently comes with a simple demo application that works under Linux, MacOS X and Windows.

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

The AVRcam is a small, real-time image processing engine capable of tracking colorful objects. The system was specifically designed to provide the everyday-hobbyist with a vision system that can be easily added to their projects (robot, security, monitoring, etc).