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 Robotics / RCX / Search Results: range USB IR long Tower
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  Re: Communication between NQC and VisualBasic
 
(...) Unfortunately, Spirit.ocx doesn't support sending messages. However, the packet protocol is pretty simple so as long as you can access the serial port directly you should be able to build message packets. See the following web pages for more (...) (24 years ago, 1-Dec-00, to lugnet.robotics.rcx.nqc)
 

long
(score: 0.265)

  Re: signals / legOS internals
 
(...) I think you're missing the point. Now correct me if I'm wrong, Lou -- I believe the intent of the signal mechanism is to allow a way to specify a function to run when a system event occurs: e.g. a message arrives across the IR port. It is (...) (25 years ago, 24-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.265)

  Re: Blocking IR
 
In addition to what I mentioned in the previous message, I also set the sensor input port to active. Setting it to passive also works, in which case the ambient light level seems to be around 480-495, and the sensor aimed directly at the IR port (...) (25 years ago, 21-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.265)

  Re: Blocking IR
 
(...) I doubt you have a broken RCX. If you did, firmdl.c would not download firmware correctly. (...) That is a good thing to try; I suppose it did not help things? (...) I don't see why you couldn't post the .srec file. I don't know if you also (...) (25 years ago, 20-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.265)

  Re: Blocking IR
 
Thanks for your help but I think I might have a broken RCX. The code I've been testing and the examples you have help me with all work if I place the light sensor about 2 mm from the IR transmitter. At about 2cm it no longer works at all. I have (...) (25 years ago, 20-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.265)

  Re: Blocking IR
 
I'll have to wait now till I get home from work to try the examples :( Phil (...) (25 years ago, 21-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.265)

  Re: Blocking IR
 
Regarding your program. Try sending 0s, not xs, i.e.: char *buffer = "\0\0\0\0\0"; Zeros are coded with the IR on 91% of the time, while xs are coded with the IR on only 45% of the time, neglecting the modulation, which cuts that all down by half. (...) (25 years ago, 16-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.264)

  Re: legOS make newbe question
 
I've got it making the first-c++.o file now, but it chokes because it can't find the first-c++.coff file. Probably because it's not being made for some reason. Here is the current make message: snip-- C:\legOS.0.1.7>make h8300-hms-ld -T h8300.rcx (...) (25 years ago, 20-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.264)

  Re: Blocking IR
 
Great, I'll try this out tonight. Many Thanks, Phil. (...) (25 years ago, 14-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.263)

  Re: Batteries...
 
Yes, it's possible. You get less voltage with NiCads, so the motors don't turn as fast as they do with brand-new alkalines. Plus they don't last as long. However, they're so much cheaper to run! I used to use NiCads during development and general (...) (24 years ago, 15-Nov-00, to lugnet.robotics.rcx)
 

long
(score: 0.263)

  Blocking IR
 
Before I start trying to do this, does anyone know why the LegOS function write_ir is a blocking function? I'm trying to write an IR detection system but am unable to do so in LegOS because every time I write a byte to the IR port the RCX locks up. (...) (25 years ago, 10-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.263)

  Re: Blocking IR
 
(...) I forgot to mention. At the top of dir_write, you probably want to add: if (dir_tx_state == TX_ACTIVE) return -1; Or something to that effect, so you don't transmit a second message while a first is still transmitting, and so you have a way of (...) (25 years ago, 10-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.263)

  Re: Blocking IR
 
(...) Do you mean dir_write? This is a problem with LegOS only. If you want non-blocking writes, comment out (in version 0.1.7 at least): while(dir_tx_state==TX_ACTIVE) ; // FIXME: scheduler integration if(dir_tx_state==TX_OK) return len; // (...) (25 years ago, 10-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.263)

  Re: Charge!
 
(...) I'm not sure if I'm thinking of the same riff as you are, since mine has far fewer notes, but its worth a try... I don't know the "official" key, and I'm doing this without a piano in front of me, but any major chord should do the trick.... C (...) (24 years ago, 14-Nov-00, to lugnet.robotics.rcx, lugnet.robotics)
 

long
(score: 0.263)

  tm-and-ir (again)
 
Hi all, I've been using Legos without any major problems but never got the tm-and-ir demo to work properly. I can receive characters on the RCX fine but when the 'view' button is pressed (within 3 seconds) the results are normally junk on the screen (...) (25 years ago, 7-Jun-99, to lugnet.robotics.rcx.legos)
 

ir
(score: 0.262)

  Re: Painful details on RCX.pm problems
 
Yes, it does in fact happen more or less often sometimes (though it is usually consistent.) It has been an awful long time since I changed batteries... I'll get a new set tomorrow and take a look at it. Thanks a bunch, John... Luis (...) (24 years ago, 9-Nov-00, to lugnet.robotics.rcx)
 

long
(score: 0.262)

  RCX.pm questions
 
So, I've finally found a little bit of time to play with RCX.pm, and it is pretty cool. However, I'm having lots of problems convincing the RCX to actually do things :) it appears that in many cases, the first signal sent to the RCX is always (...) (24 years ago, 6-Nov-00, to lugnet.robotics.rcx)
 

long
(score: 0.262)

  Re: 0.2.4 API (Long)
 
I'll look at this and probably post it tomorrow (very, very long day, which you'd think would be surprising on a Saturday :| On first glance, it looks like a very useful document. Unfortunately, the autogenerated API docs have become more and more (...) (24 years ago, 29-Oct-00, to lugnet.robotics.rcx.legos)
 

long
(score: 0.262)

  Auto Shut Off
 
Hi all, How do I turn OFF the auto shut off function of the RCX? I'd like to write a program which contains some long (1hr) delays. Thanks for replies, MTapsak (24 years ago, 1-Nov-00, to lugnet.robotics.rcx)
 

long
(score: 0.261)

  0.2.4 API (Long)
 
I put together a .html document that sums up the User Level functions (as opposed to the internal/Kernel housekeeping functions), Constants, and Macros. I forwarded it to Luis, maybe he'll put it up later on LegOS.Sourforge.net In the meantime, I (...) (24 years ago, 28-Oct-00, to lugnet.robotics.rcx.legos)
 

long
(score: 0.261)

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