View Full Version : Modulate IR
Forkosh
- 2nd December 2007, 04:43
What is the code I can use to modulate IR
I am using an IR LED and IR phototransistor to detect a line
How can I modulate that?
I am using the PIC 16F616 @ 4mhz
Thank You
mister_e
- 2nd December 2007, 21:56
have a look at those various projects
http://rentron.com/remote.htm
ardhuru
- 3rd December 2007, 11:42
What is the code I can use to modulate IR
I am using an IR LED and IR phototransistor to detect a line
How can I modulate that?
I am using the PIC 16F616 @ 4mhz
Thank You
Use the HPWM to generate the modulation; change the status of the HPWM pin to an output when you want a '1' to be transmitted, and change it to an input for a '0'. This way, you can achieve the IR transmission with only 1 pin, and no external gating circuitry.
BTW, if you are modulating the IR signal, you'd get much better results using a 3 pin IR demod. module.
Regards,
Anand Dhuru
mister_e
- 3rd December 2007, 16:21
something 'round this thread should give some idea
http://www.picbasic.co.uk/forum/showthread.php?t=3057
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