free 8051 Microcontroller Projects AVR PIC Microcontroller Projects Tutorials Ebooks Libraries, interfacing tutorials, lcd tutorial, stepper motor, dc motor 8051 assembly language programming electronics and communication ECE CSE pdf ebooks library BE final year project ideas Embedded systems
 
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microcontroller based caller ID project

Caller id project
Forum -> Project Doubts
First of all talking about the circuit. I will give a brief description of the ICs used.
1. MT8870: A DTMF decoder IC, parallel o/p.
2. AT89C2051: 8051 Controller
3. LCD: For display
4. MCT 2E: Opto coupler to check the receiver is picked or not.

Now Software..
The code is really simple, at the top is ports definition. Defining the MT8870 interface as..
CODE:
STD            ...[more]
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Posted by Ajay Bhargav on Wednesday 25 July 2007 - 06:29:32



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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