library management using rfid

Thread Starter

vidc

Joined Dec 9, 2011
3
i'm an electronics and communication engineering student of 6th sem. i'm doing project on library management using rfid. i'm using 8051 micorcontroller ir sensors..... can anybody please help me to choose ir led and photo diode for ir sensors....
 

DickCappels

Joined Aug 21, 2008
5,944
A little more detail will help get you a useful answer quickly.

What do you want to sense? What is the LED/sensor pair going to be used for? Is high speed necessary - how fast? How far apart will be sensor and LED be from one-another?
 

Thread Starter

vidc

Joined Dec 9, 2011
3
it should sense when a person enters. i'm using two ir sensors for that, i'm doind it for mini project in college, i've planned to demonstrate it on a board. thank u for replying....
 
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