Seminarsonly.com

 

 

Microcontroller Based Barcode Decoder

Abstract

The microcontroller based Barcode Decoder decodes code 39 .Code 39 was first barcode symbology to encode alphanumeric data strings .It is for this many industrial groups accepted this technology for their labeling requirements .It is widely used as standard for their labeling requirements .It is widely used in variety of applications. Hewlet- Packard's industrial Digital slot Reader is used here.

HP Barcode decoders provide an excellent scanning performance on a wide range of bar-coded cards and badges .When a bar coded card is swiped the slot reader gives a stream of pulses with varying widths .The count corresponding to these pulses widths are stored in the RAM. These are then decoded by the software, which is written in the PL/M -51.PL/M-51 is a high level language for programming various families of microprocessors and microcontroller .The Intel Corporation designed it .later the stored pulse widths are compared with the character set and the decoded output is displayed on the Liquid Crystal Display.


Related Projects : : : Voice Operated Intelligent Fire Extinguisher Vehicle,Ultrasonic Based Distance Measurement System,Hiding Of Host Image Using Cover Image,Automated Step Climber,Remote Vehicle With Unlimited Range,Robot Navigation Using Optical Odometry,Reverse Power Protection of An Alternator,Tongue Motion Controlled Wheel Chair,Tracking And Positioning System,Wireless Load Controller By GSM,Wireless Motor Control System,Conversion Of Audio CD Player To Video CD Player,Obstacle Detection Robot with Ultrasonic Sensors,Voice Operated Intelligent Fire Extinguisher Vehicle,Touch Screen GLCD based Digital Devices Control System,Fire Fighting Robot,Green House Monitoring And Control,Prepaid Energy Meter,Low Cost Anti-Lock Braking and Traction Control,Generation of Electricity from Wind Power,Cell Phone Operated Robot,High Bandwidth Low Noise Amplifier with improved stability over Radio Frequency range,Home Automation Using DTMF Decoder,Infrared Remote Control,On/Off Control And Data Communication Through Power Line






 



 

 

 

<< back

 

 
All rights reserved ® Copyright © V2computers 2007 through 2017