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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circuit explanation room light controller visitor

Automatic Room light Controller with Visitor Counter (AT89S52)
Forum -> Project Doubts
ok i explain from room.gif
first the left side of AT89S52:
you see two sensors. sensors are connected in the following way on the entrance of door.
---> Entrance this way -->  --------
  S      S
  1      2
  --------

S1 is sensor 1 and S2 is sensor 2
555 timers gives high->low pulse whenever user crosses the ...[more]
visitor counter room light controller project   circuit explanation room light controller visitor   
Posted by Ajay Bhargav on Tuesday 04 March 2008 - 09:06:42



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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