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 | | Re: Alternative Power Supplies
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| Hello Kurt, I want show you three possiblities for alternative power supplies. 1. Take 2 sets of 6 NiMH accus or 2 * 6 NiCd accus to have one set inside the rcx an one set in the charger. This would be a very simple way to solve your problem. 2. The (...) (24 years ago, 27-Apr-00, to lugnet.robotics.rcx)
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ir
(score: 0.319)
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| | Re: threads - bug in the firmware?
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| Hi again I have now totally stripped down my code to a minimum and I am still having problems with the code hanging up. I can see nowhere where there can be a fault. I am a long way from being an expert, but is it possible there is a bug in the (...) (23 years ago, 16-Jan-02, to lugnet.robotics.rcx.legos)
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long
(score: 0.319)
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| | RE: serial port interrupts
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| (...) Sounds good Steve, see notes below for some pointers... (...) Absolutely. All we have to do is enable the interrupts on the receiver throw the chars into a buffer. I'd keep the standard FORTH words that already exist so less system source (...) (24 years ago, 14-May-00, to lugnet.robotics.rcx.pbforth)
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tower
(score: 0.319)
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| | threads
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| Hi, I'm struggling to get threads working (in a simple motor speed matching program), the code just keeps hanging up. I've isolated the problem to when I restart the threads after killing them if a bumper is hit in the bumper_task() function. The (...) (23 years ago, 14-Jan-02, to lugnet.robotics.rcx.legos)
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long
(score: 0.318)
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| | Re: Measuring robot turn angle
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| (...) I have done this, although not with a differential. My solution used a rotation sensor on each axel, and good navigation can be done with that. Since you can guarantee that both axels turn the same amount, a single rotation sensor should be (...) (23 years ago, 10-Jan-02, to lugnet.robotics.rcx.legos)
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long
(score: 0.318)
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| | Re: Desire Rack & Pinion design
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| (...) Most of the official LEGO Technic models with steering use a rack and pinion system. You can visit Kevin Loch's unofficial scan repository to check out some of the designs: (URL) sets are in the 8000 range. Or you can simply buy a Technic set (...) (24 years ago, 24-Apr-00, to lugnet.robotics.rcx)
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range
(score: 0.317)
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| | Re: no rule to make target Main.o
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| (...) Yep, You took a DOS format makefile. Unix uses \n for line ends, DOS \r\n. When unix sees the DOS form, it thinks you mean 'ir_rover^M' ^M, Ctrl-M is the unix way of expressing \r. To fix it, load the filee into vi. Type the following (...) (24 years ago, 16-Apr-00, to lugnet.robotics.rcx.legos)
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ir
(score: 0.317)
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tower
(score: 0.317)
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| | serial port configuration?
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| What is the proper serial port configuration? I had it once but I lost it. I'm having other problems so the hunt around method of finding the parameters isn't working. I can no longer communicate (firmdll etc.) unless the RCX is inches away from the (...) (24 years ago, 3-May-00, to lugnet.robotics.rcx.pbforth)
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tower
(score: 0.317)
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| | Q: Determining state of outputs
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| Hello everybody! For the building of my next robot an answer to the following question could be very helpful: Is there any possibility in NQC to get the state of an output (on, off, direction). While running a program I would like to control one (...) (25 years ago, 13-Apr-00, to lugnet.robotics.rcx.nqc)
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ir
(score: 0.317)
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| | no rule to make target Main.o
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| I just unzipped emulegos_unix.zip to my RedHat 6.x system. I typed: export RCX_SOURCE=ir-rover make and got: make: *** No rule to make target `Main.o', needed by 'ir-rover^M'. Stop. Anyone know what I failed to do? (25 years ago, 12-Apr-00, to lugnet.robotics.rcx.legos)
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ir
(score: 0.317)
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| | Re: How to make shared memory....not
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| I think this is what you want, but I am still learning. :) int inc (int&); int dec (int&); int (*pFunc) (int); //pointer to a function that accepts/returns an int if (add) { pFunc = inc; } else { pFunc = dec; } int a = pFunc(10); So, if add is true, (...) (23 years ago, 27-Dec-01, to lugnet.robotics.rcx.legos)
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long
(score: 0.316)
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tower
(score: 0.316)
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| | Re: Has anyone used lnpd succesfully?
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| Yes. I have used it successfully, though not always... In my case it seems to be a problem with the uart 16550A. It does not switch to low lattency mode correctly making the tower blind to the RCX. I circumvented the problem setting the UART type as (...) (24 years ago, 28-Apr-00, to lugnet.robotics.rcx.legos)
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tower
(score: 0.316)
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long
(score: 0.316)
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| | Re: How can RIS talk to Cybermaster
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| (...) Two ways I know. 1. There is a program for the PC that will translate the Radio signal into IR and back again. 2. Take a connector and put it on the motor port of the master unit and put it to a sensor port. Now toggle the master unit's motor (...) (25 years ago, 6-Apr-00, to lugnet.robotics.rcx)
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ir
(score: 0.315)
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| | how detect other RCX robots with light sensors?
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| I want to know if there another RCX infront of me at a maximum distance of 30cm. I tried to use only the light sensors but it was not enough. Does anyone has already tried this. Maybe putting some light in the RCX like infrared (I'm trying this). (...) (25 years ago, 14-Apr-00, to lugnet.robotics.rcx)
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range
(score: 0.315)
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| | Re: Curious problem with download
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| (...) downloading (...) I don't see any strange behaviour here; the hinky USB-to-serial interface is going to be your culprit. I had no problems using NQC on my PowerCenterPro (PowerComputing Macintosh clone) with a direct serial interface, but when (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.nqc)
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usb
(score: 0.315)
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long
(score: 0.315)
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| | Re: Curious problem with download
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| (...) The iMac, iBook and G4 all work 100% fine with MacNCQ and the Keyspan single port 'PDA' usb/serial adaptor. It just appears in the pull down menu. The keyspan RS422? 'two' ADB style port usb/serial adaptor does not work for me; unless I use a (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.nqc)
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usb
(score: 0.315)
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