IR Transmitting_The Next Step

Brianmcm

This question goes along with my question concerning transmitting IR signals with the BS2. I've researched several sites suggesting transmitting via a 555 through the IR-LED. As stated earlier I have the IR codes for the RS and now I need guidance on programming. Simply how do I transmit the IR code. For instance according to the documentation the IR code to lift RS's Right Arm is $81. Could someone give an example of what the code would look like to transmit this command. My goal is to use the BS2 to program a number RS movements.
Any help is greatly appreciated.
Thanks

Jon Williams

There's not enough detail in your question. For example, what is the modulation scheme used to send the $81 to your receiving device? SIRCS (Sony)? RC-5 (Philips)? Other....

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Jon Williams
Applications Engineer, Parallax

allanlane5

I think "RS" in this post stands for "RoboSapiens". There do exist websites which document the robosapiens protocol -- I don't think it fits the Sony or RC-5 protocols.

Jon Williams

Aha ... that plastic monkey-looking thing.

Being Google is my friend, I found this link: http://www.aibohack.com/robosap/ir_codes.htm

I can't think of a clever way to send it with a BS2 being the bit timing is ~833 uS.· It would be easy for an SX using SX/B though, in fact, with a bit of work one could create an interrupt driven transmitter that would handle sending the IR codes as well as modulating the LED(s).


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Jon Williams
Applications Engineer, Parallax

Post Edited (Jon Williams (Parallax)) : 6/27/2005 6:14:26 PM GMT

Andy Lindsay (Parallax)

I posted a reply in a thread last month that explained how to use the BASIC Stamp 2 to send IR signals·with similar timing constraints.· It was on the Stamps in Class forum, and it was called·Ir remote control w/ BS2.· It's got a circuit and example code.