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 Robotics / Handy Board / *3704 (-20)
  HB weight
 
does anyone know the weight of a handy board? thanks, -Brian (26 years ago, 27-Apr-98, to lugnet.robotics.handyboard)
 
  Re: Trouble with Tom Brusehaver's Vector 2X routines
 
Alf, Try loading compass.icb first then compass.c. at the prompt type v2x(); ---...--- (...) (26 years ago, 27-Apr-98, to lugnet.robotics.handyboard)
 
  Trouble with Tom Brusehaver's Vector 2X routines
 
Hi! Is there anybody else having trouble running his V2X with Tom Brusehaver's routines? With my own very crude IC-routines I get it working, but I'd like to use Tom's, because they are much more comfortable. Any help appreciated! Alf (26 years ago, 27-Apr-98, to lugnet.robotics.handyboard)
 
  SONAR
 
Does anybody have a simple piece of code that just illustrates how to use the sonar modules? Ive looked all over and cant find anything instructional on the web. Thanks, Richard (26 years ago, 26-Apr-98, to lugnet.robotics.handyboard)
 
  Re: Handy board help
 
(...) Thanks for this excellent article on driving stepper motors from the Handboard. One little yet very important question: when you say "the common wires need to be connected to the motor positive supply" what exact handyboard pinout are you (...) (26 years ago, 25-Apr-98, to lugnet.robotics.handyboard)
 
  Smooth PWM routines for IC 3.1/3.2
 
Thanks to Julian Skidmore and Scott Seaton, we have a version of pcode and libraries for IC 3.1/3.2 which implement Julian's "smooth pwm" routines for the MIT Handyboard. To grab these, please go to the following address: (...) (26 years ago, 25-Apr-98, to lugnet.robotics.handyboard)
 
  Re: Handy board help
 
Hi For a relatively simple solution you may want to look at (URL) have connected and run steppers using this method. It does not get the best from the motors but it will let you experiment easily. (26 years ago, 24-Apr-98, to lugnet.robotics.handyboard)
 
  Re: IC stack problem
 
Dear Jan-Sipke, Two-dimensional arrays are not implemented in the freeware IC 2.8 -- sorry. I just tested and your code works fine with IC 3.1/3.2. -- Randy ---...--- (...) (26 years ago, 24-Apr-98, to lugnet.robotics.handyboard)
 
  subscribe
 
(26 years ago, 23-Apr-98, to lugnet.robotics.handyboard)
 
  Stepper motor help
 
I am planning on using stepper motors w/ a handy board and will be powering them separately from the rest of the board. What type of motor should I use? I have seen 6 and 12 volt motors availble, if anyone can recommend which to use I would (...) (26 years ago, 23-Apr-98, to lugnet.robotics.handyboard)
 
  A Few Questions
 
First I want everyone to know two things. First I am new to this list. Second, I have moderate knowledge of electronics.... Until about a few weeks ago, I had been working with Basic Stamps 1 and 2. After looking at all the information about (...) (26 years ago, 23-Apr-98, to lugnet.robotics.handyboard)
 
  Re: Help!! Polaroid problem!!!
 
Hey, I just wanted to thank everybody for there help with this, it did turn out to be the pull up resistor problem, I feel like a moron. We used the handyboardy sonar interfacing schematic when we wired it up and failed to realize that we aren't (...) (26 years ago, 23-Apr-98, to lugnet.robotics.handyboard)
 
  examples
 
I was wondering if anyone out there could send me some very basic, easy to understand programs that could help me figure out how to use sonar modules. Thanks, Richard (26 years ago, 23-Apr-98, to lugnet.robotics.handyboard)
 
  Re: Help!! Polaroid problem!!!
 
Generally the capacitor is the problem :-) The capacitor in the original note is there to pull BINH true* to allow the sensor to detect things that are closer than 18". Generally, when you include it, unless the design of the system holding the (...) (26 years ago, 23-Apr-98, to lugnet.robotics.handyboard)
 
  Re: PWM and encoder
 
(...) Are you using the "smooth" PWM motor routines? Note also, that a DC motor does not change velocity linearly with an increase in current unless it is under load. This was a recently asked question on the list. Maybe grepping the digest for (...) (26 years ago, 23-Apr-98, to lugnet.robotics.handyboard)
 
  Re: Help!! Polaroid problem!!!
 
(...) residual noise? It was my understanding that the Polaroid module used pulse time differentials to relay distance information. One need only look at the difference in time, between the leading edge of the init pulse, and the leading edge of the (...) (26 years ago, 23-Apr-98, to lugnet.robotics.handyboard)
 
  Trinity College contest report
 
Hi all, first, the URL: (URL) went to last weekend's Fire-Fighting Robot Contest at Trinity College, along with my colleague Steve Ocko, who had built a cute robot based on our network-cricket technology (see (URL) for more on that). We spent about (...) (26 years ago, 22-Apr-98, to lugnet.robotics.handyboard)
 
  A few questions....
 
First I want everyone to know two things. First I am new to this list. Second, I have moderate knowledge of electronics.... Until about a few weeks ago, I had been working with Basic Stamps 1 and 2. After looking at all the information about (...) (26 years ago, 22-Apr-98, to lugnet.robotics.handyboard)
 
  Re: Help!! Polaroid problem!!!
 
oh yeah? Well, what about the capcitor, huh? ;) ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art (...) (26 years ago, 22-Apr-98, to lugnet.robotics.handyboard)
 
  Re: PWM and encoder
 
Well, actually, it's not power either. Power is V * I. Sorry, it's actually the voltage. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper (...) (26 years ago, 22-Apr-98, to lugnet.robotics.handyboard)


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