It is a digital clock which make use of AT89C4051 to work as a Real time clock.this is a lcd project....Go

Build a digital clock that turns AC load on/off with preset time. source code with sdcc for 8051.The Clock Controller V1.1 was designed to be an exemplary of using 'C' language to control timer0 interrupt, 7-segment LED and keypad scanning. It provides 1-bit sink current driving output, for driving a relay, opto-triac, say. Many projects requiring 7-segment display and keypad interfacing may get the idea from the Clock circuit and software...Go

Easy build 4-channel timer, suitable for energy saving, simple hardware and nice firmware with c coding. Automatic power down mode, simple settings, optional buzzer for sound alarm.using MAX7219 to control LED ....Go

This is my long history the device that controls my home's night light, air-conditioner,etc. The device is a Miniature Real-time Controller. The circuit uses only three chips, a 89C2051, DS275(or MAX232), and 74LS07 open collector driver. The scheduler for time on/off of 6-channel output can be made by downloading from PC and saved into onchip RAM. Each output provides a 20mA sinking suitable for driving a homemade opto-triac or big solid-state relay for heavy load....Go

the robot built with 2051, L293D, and four IR sensors. Simple circuit and platform, quick tracking and easy-understand program using C language...Go

all the stuff are offered,such as ,lcd interface circuit,diagram and 8051 mcu source code....Go

Wagner Lipenharski has a very helpful microcontroller page. His page is packed with lots of code examples and interesting ideas for the AVR as well as 8051. A good resource for the beginner or expert!besides,this site provide some cool stuff about IR ,such as SONY IR Remote , HITACHI IR Remote,NEC IR Remote,PIONEER IR Remote ,JVCRemote IR Remote ...Go

New design data logger board, 64kB T89C51RD2, 4-channal 12-bit ADC, built-in LCD and 128/512kB battery backup memory....Go

Simple project that turns 8051SBC to be a dedicated instrument for measuring the amount of energy produced by photovoltaic power system....Go

This a great web about 8051 MCU in the internet.you can find lots of 8051 projects such as MP3 Player With IDE Hard Drive,The MIDI Drum Machine,CCD Array Reader,Fourth Order Low-Pass Filter IC.you should check it out...Go

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Build your own a personal data logger for recording analog signal. The MiniLOGGER provides 8-channel analog input(-99mV to +999mV), 1-channel pulse input, battery backup 256kB SRAM, Real-time Clock, and RS232C. Start/Stop recording can be made by MANUAL switch or preprogrammed Start/Stop Time. The format of uploading data is ASCII format, suitable for importing and graphing by Excel or any Scientific Plot Program. Exemplary circuit used for measuring Insolation and Air Temperature vs. Time is included....Go