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Identify Tx and Rx from IR LED pair

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mastertushar

mastertushar

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hi i have brought IR LD pair so plz tell me how i can identify which one is transmitter and receiver..

Note: one LED is blackish and one is transparent
 

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white is the transmitter and black is the receiver....

you can do a simple test to know the transmitter and receiver with your mobile phone with camera....

power ON the LED. and thrrough the camera look at the IR led... the transmitter will emit light which cannot be seen through naked eye... you need a camera to see the light...
 
thanx a lot to both

---------- Post added at 13:20 ---------- Previous post was at 11:28 ----------

sorry my LED is quit different . it is exactly reversed ... i have checked with mobile camera.. black LED is transmitter
 

mastertushar said:
thanx a lot to bothsorry my LED is quit different . it is exactly reversed ... i have checked with mobile camera.. black LED is transmitter
Click to expand...
Nice of you..it was really a new innovative thing to see black is transmitting at your end. Keep posting updates with developments of your project which uses the same.
Cheers
 

pranam77 said:
Nice of you..it was really a new innovative thing to see black is transmitting at your end. Keep posting updates with developments of your project which uses the same.
Cheers
Click to expand...


thanx .. i will update further, and may circuit is working now..
 

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