 | | Reading encoder forward/reverse
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I would like to tell which way my optical incremental encoder is turning. It has two outputs, one offsett from the other. Is there any library around that can count and give direction? (the "encoders.c" functions seem to only count regardless of (...) (24 years ago, 21-Nov-00, to lugnet.robotics.handyboard)
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| | Re: Some Sonar Data
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Excellent work! Gary Livick (...) (24 years ago, 20-Nov-00, to lugnet.robotics.handyboard)
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| | Some Sonar Data
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A simple experiment I was doing earlier today showing the effects of delay between multiple pings of the sonar (to let echos die down, etc): (URL) a by-product, it has some kind of neat pictures showing the accuracy and such of the sonar, if you're (...) (24 years ago, 19-Nov-00, to lugnet.robotics.handyboard)
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| | Re: GP2D02 driver affecting motor outputs?
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Well, since I wrote it, I suppose I should fix it. I need a day or so. Gary Livick (...) (24 years ago, 18-Nov-00, to lugnet.robotics.handyboard)
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| | GP2D02 driver affecting motor outputs?
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I connect a motor to a motor output on my handyboard and it works fine. I start running the program found here: (URL) program continuously collects data from a GP2D02 sensor. A motor that is working before I start collecting data starts running at (...) (24 years ago, 18-Nov-00, to lugnet.robotics.handyboard)
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| | Commapi
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I've been trying to use commapi to have my pc communicate with the HB. It seems to be more or less set up properly as I can send characters to the HB. There's a little oddity there as it seems to send an extra character to the HB. If I have just a (...) (24 years ago, 16-Nov-00, to lugnet.robotics.handyboard)
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| | polaroid sonar again
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I think I have more of a problem with the my ranging module than before. I'm getting 2000 to 3000 ticks regardless of what's in front of the transducer. Earlier, I was getting various values. I did accidently turn the thing on without the tranducer (...) (24 years ago, 12-Nov-00, to lugnet.robotics.handyboard)
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| | Re: polaroid sonar
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(...) In my experiments I have found that in using the Polaroid boards you have to be very careful of ground loops and making sure you give adequate time for the board to reset and that cap on the power line to recharge. I used to get a weird value (...) (24 years ago, 12-Nov-00, to lugnet.robotics.handyboard)
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| | polaroid sonar
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I just hooked up a polaroid sonar module with the suggested capacitor, and it does work for the most part. Unfortunately about every 5th value (using the display_sonar function) is markedly different that the others, half the reading or so. Is this (...) (24 years ago, 12-Nov-00, to lugnet.robotics.handyboard)
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| | An analysis of Rich Drushel's lock_process() errors
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An analysis of lock_process() errors. My lock_process(float sec) library code has some bugs in it. After some digging around in the pcode assembly source, and some test programs in IC, I have determined the cause of the bugs. What to do about them, (...) (24 years ago, 11-Nov-00, to lugnet.robotics.handyboard)
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| | Re: handy board serial port
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Hi Michael, (...) It's not that hard you are thinking ! check out this document and you'll see it's not that hard ! (URL)Do I still need to reprogram the HC11 chip? I only need 9600,n,8,1 settings (...) Depends on what handshake you're using. (...) (...) (24 years ago, 9-Nov-00, to lugnet.robotics.handyboard)
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| | handy board serial port
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Hi In regards with programming the serial port to talk to a mouse, if i only want to use the existing baud rate and settings to talk to a modem, can it be done? Do I still need to reprogram the HC11 chip? I only need 9600,n,8,1 settings which i (...) (24 years ago, 9-Nov-00, to lugnet.robotics.handyboard)
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| | can't get handyboard in download mode
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Several of us in the Physical Computing lab at Parsons are working with HandyBoards running off laptops with Win98. We have been experinecing problems with getting the board to go into the download mode. The board crashed after we dowloaded files in (...) (24 years ago, 8-Nov-00, to lugnet.robotics.handyboard)
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| | Re: handy board serial port
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you have to reprogram the serial configuration register. download the 68hc11 documentation at handyboard.com/techdocs/ and read the chapter on the SCI (serial communications interface). after poking new values into the SCI registers to get the (...) (24 years ago, 8-Nov-00, to lugnet.robotics.handyboard)
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| | handy board serial port
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hi, i am trying to interface a mouse to the handy board to use as some sort of position control. I can read data from the serial port, but unfortunately I need to reconfigure the port, but I dont know how. The mouse transmits at 7bits 1stop bit, and (...) (24 years ago, 8-Nov-00, to lugnet.robotics.handyboard)
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| | bugs in Rich Drushel's lock_process() library
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A couple of weeks ago, students in my Autonomous Robotics course found some bugs in my lock_process() library code. lock_process() and unlock_process() were intended to work like hog_processor() and defer(), except to allow a variable duration of (...) (24 years ago, 2-Nov-00, to lugnet.robotics.handyboard)
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| | RE: flow control with Switch
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Hi Daniel, section 5.4 of the HandyBoard Technical Reference says that switch / case statements are not supported in IC. I do not know whether this has changed since it was released. <handyboard@media.mit.edu> escribió en el mensaje de noticias (...) (24 years ago, 31-Oct-00, to lugnet.robotics.handyboard)
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| | Recommendation for a robotics set.
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crossposted from lugnet.robotics I should have added that,as I am already getting the HandyBoard, any sets containing lots of electronics (aka. Robotics Invention System...) are not the most interesting for me. I am looking for the structural stuff (...) (24 years ago, 31-Oct-00, to lugnet.robotics.handyboard)
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| | Handyboard power monitor
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Has anyone attempted to build a batter/power monitor interface on the Handyboard? In reading the Mobile robots book it shows that that platform supports a battery monitor to an analog port. I would like to achieve the same functionality on the (...) (24 years ago, 31-Oct-00, to lugnet.robotics.handyboard)
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| | Re: IR Proximity Detector Kit
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Yes, check out my web site nfn.no-ip.com/spazbot. It works great! I wrote the code to pull it off, it's not too hard. The code should be posted at lynxmotion, if it's not I can send you an example. (...) (24 years ago, 30-Oct-00, to lugnet.robotics.handyboard)
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