final year ece projects in bangalore
TRANSCRIPT
http://www.embeddedinnovationlab.com
“Final year embedded system projects centre in
bangalore”
AUDITORIUM CONTROL
Here in this project we are going to the control the auditorium
when visitor enters. Here we utilize the most popular invisible light IR
(Infra Red) rays to sense the visitors. Final year eee projects in
vijayawada. For bidirectional operation we employ two IR detector and
IR emitter circuit.
This IR emitter is switched in 30 to 40 KHz for proper sensing
operation. Infrared is an energy radiation with a frequency below our
eyes sensitivity. Final year ece projects centre in bangalore. This
infrared can use for communication purpose but it has lot of
disadvantages due to the interference of other infrared sources. So to
avoid such interferences we switch the emitter in 30 to 40 KHz.
“Final year vlsi projects in bangalore”. This switching
frequency is generated by the microcontroller AT89s52. This same
microcontroller will receive the pulse from the detector circuit and
display the corresponding counts in the LCD display. These receiver
circuits consist of IR detector diode with the comparator.
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