his site provides a complete open source design for a nixie tube clock. In this site you will find the schematic, layout, source code, specifications, bill of materials and an enclosure example for my clock design.
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this is a project i designed for a customer. it would have become a full on commercial project, but the client never went ahead and so it become GPL....Go

Wireless communication in license free micropower band is very easy these days. There are several companies which sell transmitter, receiver, and even transceiver modules for half duplex communication which are ultimate in hookup simplicity. This experiment shows you how to hook up one of these transmitters to BASIC-52, and receive the data to PC....Go

AD9835 is a DDS (direct digital synthesis) chip from Analog Devices. It contains a phase accumulator, sinewave table, and 10-bit D/A converter. In can be used for phase and frequency modulation by selecting the phase and frequency of the signal either under software control, or using I/O pins (4 phases, 2 frequencies). Although the chip is designed for RF applications, it makes a good audio frequency sinewave generator, too. The schematics below shows how to hook it up to 8052-BASIC chip....Go

Simple expansion board for 8051SBC provides easy USB port and graphic LCD interface....Go

Web51 is a complex project of connecting an Intel x51 compatible processor to a Realtek RTL8019AS network controller. The result is a very low-cost Ethernet interface. Since a well-known x51 architecture is used, even small and medium-scale businesses can now network their devices....Go

New Microprocessor learning board demonstrates exemplary design of 8-bit single board computer. More peripheral and easy to adapt to be a dedicated controller....Go

Upgrade your writer chip 89C51 with EZ53.HEX will let the Easy-Downloader be able to write the hex code to the AT89S8252 and AT89S53. The new EZ53.C still works with the UPLOADER EZ3, EZ31 without any modifications....Go

Build your own a laboratory instrument for measuring time and temperature. The DigiThermo demonstrates the use of 'C' language, a dual-slope converter, LCD interfacing, and digital filtering as well. schematic and diagram are offered...Go

Cool personal homepage for 8051 microcontrollers projects.You can download a lot of 8051 projects source codes.Enjoy them....Go

How to control a HD44780-based Character-LCD The Industry Standard Character LCD ,includes both PIC and 8051 examples,Cool...Go

MP3 Project is an MP3 player reference design, based on the Atmel AT89C51SND1 microcontroller. This is a standalone player, which is suitable both as a suplement to your home stereo-set and as a part of the sound system installed in the car, caravan, yacht or motorboat. We have managed to develop the solution that offers:...Go

Try a hardware keylogger instead of a software keyboard logger! This hardware keyboard recorder is system independent, undetectable for software, and installs in seconds (even with the PC off).this project are based a AT89C2051 MCU...Go

How about putting a computer controlled, 12 Bit Data Acquisition System that you built on your own workbench! The Hagtronics PIC DAS project published in QEX is just that!...Go

Latest design of night light saver circuit built with AT89C2051. Nice firmware using c coding developed with SDCC....Go