IR object detection - Electronic Circuits Projects Diagrams Free

raitl · 12th February 2005, 03:51 PM

Hi.

How can I have an IR transistor to accept only modulated IR light? So I can choose let's say 35KHz frequency for the working frequency of my IR object detection system?

**Nigel Goodwin** · 12th February 2005, 04:07 PM

Quote:

Originally Posted by raitl

Hi.

How can I have an IR transistor to accept only modulated IR light? So I can choose let's say 35KHz frequency for the working frequency of my IR object detection system?

Use an IR receiver IC, very simple to use, freely available, and excellent performance. Check my PIC tutorials where I use them in my IR tutorial.

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12th February 2005, 03:51 PM	(permalink)
raitl	IR object detection Hi. How can I have an IR transistor to accept only modulated IR light? So I can choose let's say 35KHz frequency for the working frequency of my IR object detection system? __________________ Here...let me improve it for you! Puff of smoke ....oops...