communication between pc and micro controller usin optical fiber cable
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bhargav eswar
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Joined: Mar 2010
07-03-2010, 11:33 AM

plz mail me the project and implimentation
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Posts: 549
Joined: Mar 2010
08-03-2010, 08:17 PM

Data Communication between Microcontroller and
PC using Fiber Optic Cable

Domain : Communication, Embedded Systems Design
Software : Embedded C, Keil, Proload
Microcontroller : AT89C51
Display : a) LCD HD44780 16-character, 2-line (16X2)
b) LED 5mm White-in-Red, 5mm White-in-Blue
Power Supply : +5V, 500mA Regulated Power Supply
ADC : ADC0804
Crystal : 11.0592MHz

One of the 8051s many powerful features is its integrated UART, otherwise known as a serial port. In this project and implimentation, the data is transmitted from a microcontroller to remote PC via fiber optic cable using RS232 communication. On transmitter side, a computer is interfaced to MCU using MAX232 to enter the data. On the receiver side, 16 X 2 LCD is used to display the data. This project and implimentation uses regulated 5V, 750mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac out put of secondary of 230/12V step down transformer.
Fiber optics transmission of digitized messages or information by light
pulses along hair-thin glass fibers. Each fiber is surrounded by a cladding having a high refractive index due to which light is internally reflected and travels the length of the fiber without going out.

Advantages of optical fiber communication:
- they can carry much more information but can be made smaller and lighter than
conventional cables using copper wires or coaxial tubes. They are immune to electromagnetic interference (from lightning, nearby electric motors, and similar sources) and to crosstalk from adjacent wires, and tapping into them is more easily detected. They require fewer repeaters over a given distance

For more details, refer to this pdf:

.pdf   Data Communication between Microcontroller and PC via optical fibers.pdf (Size: 389.96 KB / Downloads: 388)
Use Search at wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
project report helper
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Posts: 2,270
Joined: Sep 2010
02-11-2010, 04:14 PM

.doc   PC To PC OPTICAL FIBRE COMMUNICATION.doc (Size: 168.5 KB / Downloads: 149)




The project and implimentation PC to PC fiber optic communication deals with data transfer from one computer to another. It uses C programming and the serial ports of the PCs. The ports are programmed in C. We use MAX 232 to convert RS 232 logic to TTL logic and then an optical transmitter circuit to transmit data via fiber optic cable. The optical transmitter circuit has a LED which is matched as far the cable and MAX 232 is concerned. At the receiver we have an optical receiver circuit which receives data using a photo transistor and a MAX 232 again to convert TTL logic to RS 232 for the serial port at the receiving end computer. The desired baud rate can be set using the program. For transmitting data the program is executed once and whatever is present at the serial port is sent to the other
Computer via the fiber optic cable. At the receiver the program is executed to receive data on the serial port.


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