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 Robotics / RCX / *1055 (-10)
  Re: Communication with PC using NQC
 
(...) /Vlad (25 years ago, 9-Nov-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
 
  Re: Communication with PC using NQC
 
(...) You might find the following helpful... (URL) again, you might not. jack j-perdue@tamu.edu (25 years ago, 9-Nov-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
 
  RE: Long range IR mode.
 
<Range mode intro snipped> (...) I'd redefine it something like this....use upper case BASE @ HEX \ To keep from evaluating HEX every time... : RANGE_SET ( f -- ) \ non-zero is long, 0 is short >R FFB7 DUP C@ R> IF FFFE AND ELSE 0001 OR THEN SWAP C! (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx.pbforth)
 
  "A cunning plan"
 
I am hoping someone has done some/all of this already... Aims: 1 To develop downloadable RCX code on the PC. 2 To develop immediate RCX code on the PC. 3 To run immediate code on the PC and the PalmPilot. 4 Spirit.ocx functionality. 5 IR comms to (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx.java)
 
  JVM and spirit.ocx
 
Todd. Has anyone done much on this subject? I am looking at writing a class library to communicate/program the RCX from Java and I don't want to reinvent the wheel. I have seen some work on the net, but nothing definitive... Geoff (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx.java)
 
  Re: Communication with PC using NQC
 
(...) Taking the example of the maze-walker, the PC software should be able to keep track of the position of the robot and direct it through the maze. (...) Yes, I looked at the code and it only needs a higher-level wrapper. (...) Yes, it does, (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
 
  Re: Long range IR mode.
 
(...) Just scanned through Kekoka's excellent dissection of the ROM routines. Seems like system variable/register at address $ff7b contains the relevant Long range/Short range bit flag, ie. bit 0 toggles the IR range 0 = Long, 1 = Short. Could I (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx.pbforth)
 
  Re: RCX motor voltage
 
(...) I am using the motors that came with the RCX. (...) Hmmm - do you propose to ensure the delay in the relay circuit or programmatically? If in the circuit, how? (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx)
 
  Re: RCX motor voltage
 
Wes, relays would work pretty well. (Still, how much current do your motors draw???) The LEGO motors draw about .35 Amps (350 Milliamperes) You could connect two 5V coil relays , each with a diode in series with the coil, connected oppositely to (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx)
 
  Re: Communication with PC using NQC
 
(...) Could you be more specific on "querying its state" and "high-level commands"? If you're willing to write custom C++ code, you can pretty much do whatever you want on top of the rcxlib stuff from the NQC source base. Its pretty easy to send (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)


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