The door bell seems like a simple project but it's not! There is one major difficulty it's to generate a sine wave via Pulse Width Modulation.U can find all the solution.this is a ATMega8 project....Go

this project not only about MP3 playing,but also about AVR mcu,LCD,USB, Remote Control,IR Transceiver.all the stuff are provided.Maybe you can do it by yourself.enjoy it....Go

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very very interesting project.using LED to display this time in tow model:Anoalog mode and Digital mode....Go

The Frequency is passing through an op-amp to convert it in a square wave. The ouput of the op-amp is feeding the 3*8 bits counter (24 bits) who can accumulate at a maximum of 16777216 count. The maximum frequency you can measure without changing the time base of one second is 16.777216 Mhz. The ATMega8 have 3 functions: enable the counter gate at each second, read his value and display it on the LCD....Go

ATMega128 based LED project.all the stuff are offered.you can do it by yourself....Go

powerful Nokia 3310 LCD library.this project uses ATMEGA8 MCU....Go

This LCD is very different from the other standards text 2 x 20. This graphic and text LCD is 320 x 200 pixels. This LCD have differents memories map for the text and graphic region. This LCD is perfect for project that needs to display a lot of information.in this project uses ATMEGA128 mcu....Go

AT90S2313 based Text LCD Library for HD44780...Go