Serial over the IR

[mark_s]

This may help, achieved from Rentron. Be sure to copy any info that you like. It may not be available in the future.

https://web.archive.org/web/20120504...munication.htm

[iw2fvo]

good ,
it requires an external Nand gate but it is suggesting to use a resistor in series to the bs170 gate and another pic pin to turn on and off the carrier... this pin should be low state or three state . Three state for carrier on and low for carrier off...
I will try and let you knw.
thanks
Ambrogio

[Art]

You shouldn’t need another pic, just turn on HPWM, and leave it on.
then use that as one input to an AND gate, and your HSEROUT pin as the other,
then the AND gate output should be the modulated serial.

The IR receiver modules don’t go well with a constant carrier, at least in my experience,
and also your output from the IR receiver module might be inverted (relative to what you expect).
You might need a 7404 or similar at either the send or the receive end.

[sayzer]

If the received data is like a garbage, then reverse IR LED legs.

[iw2fvo]

good idea Sayzer,
thanks,
Ambrogio

[languer]

Take a look at the following, these show you some simple information about RX/TX IR communication and some basic code:

Basic IR Communications (http://www.electro-tech-online.com/a...nications.361/)
Lazer Tag– concept (http://www.electro-tech-online.com/b...3-concept.216/)

[iw2fvo]

thanks,
I did register but not possible to get in due to error: could you pls specify the links again ?
Regards
Ambro