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-   -   Running the robot using Infa Red? (http://www.chiefdelphi.com/forums/showthread.php?t=31987)

Burg 29-12-2004 01:24

Running the robot using Infa Red?
 
An idea came to mind while I was sitting here just looking at my PPC, controlling the robovation bot using IR, but is this even possible? Maybe not for the actual competition *It can't...I'm pretty sure* but for an...extra outside kind of thing? Could it be done?

I would need the reciever on the bot, and the PPC can reach 30feet, if I need more I can build a larger sensor thingy *I'm not in the state for technical words, 8 hours of sleep in 2 days* But the software for the PPC would have to be programmed, and would it even connect to the robovation computer?

Just a...thought that might be cool to explore. Thanks for any help

Max Lobovsky 29-12-2004 01:38

Re: Running the robot using Infa Red?
 
I know there are infrared modems with serial connections. Plug one in to the Robovation controller, and figure out how to communicate with it and you should be able to read data sent from any compatible IR device.

Kevin Watson 29-12-2004 03:17

Re: Running the robot using Infa Red?
 
Quote:

Originally Posted by Burg
An idea came to mind while I was sitting here just looking at my PPC, controlling the robovation bot using IR, but is this even possible? Maybe not for the actual competition *It can't...I'm pretty sure* but for an...extra outside kind of thing? Could it be done?

I would need the reciever on the bot, and the PPC can reach 30feet, if I need more I can build a larger sensor thingy *I'm not in the state for technical words, 8 hours of sleep in 2 days* But the software for the PPC would have to be programmed, and would it even connect to the robovation computer?

Just a...thought that might be cool to explore. Thanks for any help

Yes, this can be done. Have a look at the 2004 IR receiver code to see how the receiver side can be implemented, and the beacon code for the transmitter side. It wasn't just by chance that I named the two different beacon waveforms "0" and "1" <grin>. The code and documentation is kept here: http://kevin.org/frc/2004. Let me know if you need help.

-Kevin

Max Lobovsky 29-12-2004 11:37

Re: Running the robot using Infa Red?
 
Ah, that's even easier. No need to buy new parts. Mr. Watson, do you know if these two beacon waveforms are used in IR modems in laptops and PDAs to transmit data?

Kevin Watson 29-12-2004 13:58

Re: Running the robot using Infa Red?
 
Quote:

Originally Posted by Max Lobovsky
...do you know if these two beacon waveforms are used in IR modems in laptops and PDAs to transmit data?

No, it's not likely, but the software can be tweaked to work with just about any protocol if the data rate isn't too high. What protocol do you want it to work with?

-Kevin

Burg 30-12-2004 00:52

Re: Running the robot using Infa Red?
 
Quote:

Originally Posted by Kevin Watson
Yes, this can be done. Have a look at the 2004 IR receiver code to see how the receiver side can be implemented, and the beacon code for the transmitter side. It wasn't just by chance that I named the two different beacon waveforms "0" and "1" <grin>. The code and documentation is kept here: http://kevin.org/frc/2004. Let me know if you need help.

-Kevin

Wow, didn't think I'd get that kind of reply...thanks :) I have a lot to look into, but before I do, I want to double check on something...I can't use IR for the competition to control my robot...correct?

Even if I can't, I could just build the desired circuit from you're links on you're site, but I didn't get any of those parts in the Kit...so what happens now?

It all looks interesting, I have some reading to do :)

Kevin Watson 30-12-2004 01:01

Re: Running the robot using Infa Red?
 
Quote:

Originally Posted by Burg
Even if I can't, I could just build the desired circuit from you're links on you're site, but I didn't get any of those parts in the Kit...so what happens now?

The parts are pretty inexpensive. Sources are listed in the FAQ.

-Kevin

phrontist 30-12-2004 12:31

Re: Running the robot using Infa Red?
 
Quote:

Originally Posted by Kevin Watson
The parts are pretty inexpensive. Sources are listed in the FAQ.

-Kevin

Yeah, the parts are cheap, go for it! We found out the hard way because the ones that came in the kit were FUBARed.


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