Cytron Technical Forum

Posted: **Thu Dec 06, 2012 11:02 pm**

I have tried this way to construct a circuit, but the ir sensor didn't show any result in my arduino mega.......... I had tried 3 pair IR components already but failed to show any voltage difference........ then i tried to use LDR and LED to replace IR pair, it works
http://tutorial.cytron.com.my/2012/09/07/how-to-use-ir-sensor/

i connected "SENSOR" to analog input

Posted: **Thu Dec 06, 2012 11:08 pm**

A clear photo of your circuit should be helpful.

Posted: **Fri Dec 07, 2012 4:52 pm**

u might connect the Receiver in wrong polarity.

Posted: **Sat Dec 08, 2012 3:22 pm**

ya,

the polarity of the receiver need to be observed.
the shorter leg or the cathode need to be connect to positive and vice versa. the receiver need to be reverse biased.

please remove LED at receiver thre to test

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