 | | Re: Has anyone built this homebrew sonar ranging board?
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(...) I have :) (...) What would you like to know about it? (...) Here are the essential pros and cons (note that I have NOT ever actually had a Polaroid to mess with so my comments are based on what I've read about it and other people's comments): (...) (27 years ago, 1-Jun-97, to lugnet.robotics.handyboard)
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| | problem starting IC
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Hello, Sorry to bother you all. I 've build a small version of the Rug Warrior board. I use a 68hc11A1 with 32K RAM at $8000 to $FFFF accoording to the book of "Jones and Flynn, Mobile robots Inspiration to Implementation". I tried to use IC ver. (...) (27 years ago, 31-May-97, to lugnet.robotics.handyboard)
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| | Polaroid 6500
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Hi all, Did anybody see my previous questions about polaroid 6500 ? (except for Will, thanks): (...) Can I use the motor(3,75) statement to create enough voltage ? I think my polaroid board is damaged, how can I know for sure ? How can I repair it ? (...) (27 years ago, 31-May-97, to lugnet.robotics.handyboard)
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| | Vector 2X Compass
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Well, I finally got my Vector2X compass module running this evening. Looks great- thanks Tom Brusehaver for your nice code- it works well! Ok- call me simple, but I'm tickled pink :) Its cool to watch it spit out the headings. Anyway, on a related (...) (27 years ago, 30-May-97, to lugnet.robotics.handyboard)
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| | Re: A few questions
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DVM or Oscilloscope: Most DVM will indicate the RMS or True RMS value of a sinewave with in the frequency range of the meter. Some functions to consider: Function DVM Oscilloscope Frequency Some via time for a period (or half period) RMS Sinewave (...) (27 years ago, 30-May-97, to lugnet.robotics.handyboard)
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| | Re: A few questions
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(...) I'm not personally familiar with that particular model, but I use a FLUKE with similar features. The frequency measuring is a nice addition. The inclusion of a bar graph in the LCD can be handy in looking at fluctuations. If I could have only (...) (27 years ago, 29-May-97, to lugnet.robotics.handyboard)
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| | A few questions
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Hi all, I'm about to build a few handyboards, and I have a few questions. 1. I don't have convenient access to an o'scope so I'm hoping to get by without one. I am in the market for a new DMM (my birthday's coming up :->), and I've located one that (...) (27 years ago, 29-May-97, to lugnet.robotics.handyboard)
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| | Re: Vector 2x giving me lots of trouble...
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F> Hi all, I am having lots of trouble with the vector 2x F> compass. Sometimes it seems to work fine. Other times it just F> ouputs zeros (like someone else was saying...). I checked all F> the physical wiring, and that seems to be fine. The (...) (27 years ago, 29-May-97, to lugnet.robotics.handyboard)
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| | Re: Polaroid 6500 sonar and HB...
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(...) Here are some starting points: Handy Board Software: Sonar Routines by Kent Farnsworth (URL) URL was clipped on my printout) Polaroid Sonar Interfacing to HC11 (URL) and Robotics Great background info once you get your sonar working (URL) A. (...) (27 years ago, 29-May-97, to lugnet.robotics.handyboard)
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| | Minor Correction to 'Makefile'
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Minor change to Makefile just posted- Change the '$' signs to '\$$' signs to get around interpretation as shell variables: --- begin Makefile --- # # Generic Interactive-C *.ICB Assembly Makefile # Brat Wizard - 06/28/97 # # General CAT = /bin/cat # (...) (27 years ago, 29-May-97, to lugnet.robotics.handyboard)
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