I have constructed this circuit, and it is really worked. the potentiometer is used to control the distance of signal transmitted, far or short.
But I dunno how it's work.
Any1 can explain for me on:
1) how the potentiometer can be used to control the distance of signal transmitted by IR LED ?
2) How NE555 IC is working, how it is used to control the on/off of IR LED ?
Thanks in advanced .
But I dunno how it's work.
Any1 can explain for me on:
1) how the potentiometer can be used to control the distance of signal transmitted by IR LED ?
2) How NE555 IC is working, how it is used to control the on/off of IR LED ?
Thanks in advanced .
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