J Jaydu1904 New Member Oct 1, 2009 #1 Hi friends, I have a doubt... I am building a IR sensor circuit, n can I use IR LED for the detection of reflected IR waves?? please visit the link **broken link removed** for circuit diagram. also if I cant use that, pls suggest the modified circuit... thanks.
Hi friends, I have a doubt... I am building a IR sensor circuit, n can I use IR LED for the detection of reflected IR waves?? please visit the link **broken link removed** for circuit diagram. also if I cant use that, pls suggest the modified circuit... thanks.
MikeMl Well-Known Member Most Helpful Member Oct 2, 2009 #2 Yes, but you will get much better sensitivity if you use an IR phototransistor like a LTR-3208E