 | | Robolab Sensors
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Can anyone tell me how to get Robolab to report raw values for non-powered sensors? I am trying to use Robolab to plot thermistor and photoresistor resistances. Thanks. (24 years ago, 15-Jan-02, to lugnet.robotics)
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| | newbie question
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I have just got Robolab 2.5 and forgot to order user guides with it. Is it just me, or is it not entirely intuitive? I cannot yet find a way of starting a new project without first opening an existing one - am I missing something? (I have bought it (...) (24 years ago, 13-Jan-02, to lugnet.robotics.rcx.robolab)
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| | Re: threads
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Hi again, I'm now totally stuck with this problem. I've spent all day at it, stepping through the code line by line with key presses. I've marked the point that the code appears to hang in left_control_task (). Someone please help, please. Thanks (...) (24 years ago, 15-Jan-02, to lugnet.robotics.rcx.legos)
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| | wireless RF RCX communication?
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I've been thinking about how I might replace the RCX's IR communication with something that doesn't require line-of-sight, eg using RF. I'm not much of an analog hardware guy so I thought I'd ask about the feasability of it first... I'm considering (...) (24 years ago, 15-Jan-02, to lugnet.robotics)
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| | Re: Help! Hanyboard Assembly Testing problem!
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Sam, can you check the serial input circuit. if this is not correct, then the 6811 won't stay in boot mode. make sure RP4 is a 1Kx4 resistor pack (4 discrete resistors) and not a 1Kx7. also make sure R15 is installed. see (URL) . also, try putting (...) (24 years ago, 15-Jan-02, to lugnet.robotics.handyboard)
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| | Re: Link for Linux/USB/NQC?
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(...) Currently the best place to look is the legousb-devel mailing list archive ((URL) more organized presentation somewhere on the LegoUSB website ((URL) would be nice, but at the moment I have very little time and I couldn't yet get it running on (...) (24 years ago, 15-Jan-02, to lugnet.robotics)
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| | Re: Some remarks / questions about Brixcc
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(...) Sorry about the mixup. I thought I'd tried capturing non-compiler errors with a redirect and it hadn't worked. But trying it just now it definitely does work. BricxCC is already capturing the compiler errors via the -E option. I am trying to (...) (24 years ago, 15-Jan-02, to lugnet.robotics.rcx.nqc)
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| | BricxCC
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Hi John, I just got a new computer and tested your program on a AMD 1.333GHz Athon (Thunderbird). It works just great! I thank you for the adjustments/adds in your program as I requested. There is just one question left. Since I use to Delphi, I (...) (24 years ago, 15-Jan-02, to lugnet.robotics.rcx.nqc)
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| | Re: Help! Hanyboard Assembly Testing problem!
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Ok, RP4 was fine. I've put a logic tester "MODA" line on the chip (from what I can figure, this is this pin that gets the signal from the stop switch), and it is recieving a signal when I press the stop switch. I verified that the reset pin was (...) (24 years ago, 15-Jan-02, to lugnet.robotics.handyboard)
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| | Link for Linux/USB/NQC?
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I have seen several postings about getting NQC working with the USB tower under Linux. I suspect that a few things will continue to be tweaked for a little while, and since I can't build/test the Linux software myself, I am hoping that someone else (...) (24 years ago, 15-Jan-02, to lugnet.robotics)
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| | Re: Some remarks / questions about Brixcc
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(...) Error messages go to one of two places. Errors from the compiler default to stderr but can be redirected with the -E option (-Efoo would sent them to a file named "foo"). Other errors (problem communicating with the RCX, illegal command line, (...) (24 years ago, 15-Jan-02, to lugnet.robotics.rcx.nqc)
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| | Re: Using the Differential to drive straight.
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(...) My implementation did something similar but used the 3rd motor in the OFF (ie. high resitance to turning) setting during turns to make sure that both the A and B side wheels turned the same amount. This helps to make sure that the skid/steer (...) (24 years ago, 15-Jan-02, to lugnet.robotics)
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| | Re: Inertial guidance
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(...) Where an inertial system *might* have some applicability would be to fill in the gaps between sightings of some kind of a navigational landmark. The gradual accumulation of error is the big problem - but if you only need the inertial (...) (24 years ago, 15-Jan-02, to lugnet.robotics)
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| | Re: [Legousb-devel] Yes, the puzzle is solved - legousbtower + nqc for linux.
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(...) I believe this is correct. actual_length is only used on incoming data because the amount of data supplied may be less than the maximum buffer size (held in transfer_buffer_length). On the transmission side you just use transfer_buffer_length (...) (24 years ago, 15-Jan-02, to lugnet.robotics)
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| | Re: Inertial guidance
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Steve, I see your point. I forgot the sensor also responds to gravity. I suspect that the best we can do is a very rough demo of principle, not a practical navigation system. Thanks for your insight! That is what makes this forum so useful. - pete. (...) (24 years ago, 13-Jan-02, to lugnet.robotics)
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| | Re: NQC and RedHat linux 6 on laptop
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(...) I've seen this kind of problem before. The difficulty is that PC's only have two interrupt lines for the four possible serial ports. Generally, ttyS1 and ttyS3 share a line and ttyS2 and ttyS4 share the other. That means that by default, you (...) (24 years ago, 15-Jan-02, to lugnet.robotics)
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| | BricksWest robot event
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I'm organizing a Mindstorms robot competition for BricksWest and it would make it easier, planning wise, to have a rough idea of how many people might be attending. If you think you might go, or better yet, know you will be, could you please let me (...) (24 years ago, 14-Jan-02, to lugnet.robotics)
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| | Re: NQC and RedHat linux 6 on laptop
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(...) I misspoke. In the BIOS it can be either COM2 or COM4 and it is set to COM4. I saw it listed in the RH6 startup as ttyS03, and misremembered it as COM3. It is COM4, I am using /dev/ttyS03. No go. Thanks for the suggestion, and sorry for the (...) (24 years ago, 14-Jan-02, to lugnet.robotics)
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| | Re: NQC and RedHat linux 6 on laptop
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(...) Umm... COM3 is /dev/ttyS02, and COM4 is /dev/ttyS03. (Remember, COM* starts at 1, ttyS* starts at 0). Could that be your problem? (24 years ago, 14-Jan-02, to lugnet.robotics)
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| | Re: Robolab and 3rd party camera
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As far as I know, any functionality that uses the webcam will not work in version 2.5. As a temporary solution, you could use an external program to capture a webcam image, and then use the image loading VI in RoboLab to work with it. I haven't (...) (24 years ago, 14-Jan-02, to lugnet.robotics.rcx.robolab)
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