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8051 Projects [ projects based on 8051 ]

Two Line Intercom
Author Binu
Author email binu_ji@yahoo.com
Author website www.binu.somee.com
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Description This project is used as an electronic private exchange. It has two telephones, which have the intercom facility, and they can be connected to the telephone line. All the functions are controlled by the 8-bit microcontroller AT89C2051 which has an Program Memory (ROM) of 2 kilobytes. The DTMF (Dual tone multiple frequency) signals are decoded by the DTMF decoder IC 8870 and its output will be in decimal of the pressed key. The switching functiond are done by 12v relays.
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Filesize 20.36 kb
Date Tuesday 07 August 2007 - 14:22:30
Downloads 1521
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8051 Microcontroller Projects 8051 AVR tutorials PIC microcontroller, 8051 assembly language programming electronics and communication ECE CSE pdf ebooks library BE final year project ideas Embedded systems