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 Robotics / Handy Board / *6389 (-20)
  speed control help
 
I have a problem that involves speed control. My robot is curently configured for differential steering and have shaft encoders installed on each one for feedback. the shaft encoders generate 64 pulses /rev The motors are PWM using the rug warrior (...) (25 years ago, 23-Jun-99, to lugnet.robotics.handyboard)
 
  serial interface building
 
A group of us are building the HB and we are at the serial interface building stage. When we perform the test on the serial interface to get +9 or +10 volts, we are all getting values of up to +8.5 only. Is there a problem or is this normal? Thanks (...) (25 years ago, 22-Jun-99, to lugnet.robotics.handyboard)
 
  GP2D02
 
I am having trouble getting the IR sensor to show values on the LCD screen. I am confident that it is finally hooked up correctly. The following is what is included in the list file to automatically download into the board: explego.icb lib_hb.icb (...) (25 years ago, 22-Jun-99, to lugnet.robotics.handyboard)
 
  runtime errors
 
What are the meanings of the various runtime errors? Thus far I have gotten 3 and 4, but I am curious as to what the rest are as well. =) Andrea (25 years ago, 22-Jun-99, to lugnet.robotics.handyboard)
 
  Re: Where can I get a Sonar?
 
Jens, You can get the Polaroid sonar from Acroname. Their web site is (URL)Hallo, (...) Scott Sherman IT Spec. II St. Cloud State University 720 4th Avenue South Academic Computer Services ECC Building, Room 101 (320) 255-4888 (25 years ago, 22-Jun-99, to lugnet.robotics.handyboard)
 
  Parts buying help.
 
To the wise HB builders, First can I us a poly-styrene cap of the same value instead of the polypro?? Can I use a 3.92 1% in place of the 3.83 1%, what will happen?? Can I use a -8 instead of a -12 or -10 32k memory chip?? Has anyone created (...) (25 years ago, 21-Jun-99, to lugnet.robotics.handyboard)
 
  Update for HandyBoard Buffalo
 
Hello all, Just to let you know, I have updated my HB_Buffalo development system. It can be obtained at the following web address: (URL) is it: HB_Buffalo is a monitor operating system that facilitates the development of machine code programs on the (...) (25 years ago, 20-Jun-99, to lugnet.robotics.handyboard)
 
  Re: IRPD sensors
 
Hi Evan, Did you ever get any code that would work for the irpd sensors? I too have a line tracker and a irpd proximity detector but have not connected to the HB. I purchased them in kit form from Lynxmotion . ---...--- (...) (25 years ago, 20-Jun-99, to lugnet.robotics.handyboard)
 
  Where can I get a Sonar?
 
Hallo, I am searching a ultrasonic based mesurement system. Has anybody a circuitry? regards, Jens (25 years ago, 20-Jun-99, to lugnet.robotics.handyboard)
 
  Re: My sonar doesn't work!
 
Did you install a .1uF capacitor at C7 on the sonar boards? The 6500 doesn't work without that capacitor. Ross M. Tonkens, M.D. Medical Director Primary Care of Nevada 100 North Green Valley Parkway Suite 240 Henderson, NV 89014 702 914-7120 VOICE (...) (25 years ago, 19-Jun-99, to lugnet.robotics.handyboard)
 
  digital in's and out's?
 
Hi, I want to construct my own expansion board with as many digital in's and outs as possible!! I know this can be done but I don't know where to start. I am asking the seasoned 'botters for some help. Thank you in advance for any help you might (...) (25 years ago, 18-Jun-99, to lugnet.robotics.handyboard)
 
  Re: digital in's and out's?
 
Dear Steve, Nobody wants to hear this said, and I hate to be the one to do it, but you can start by reading the data available on the Handy Board web site (quick duck to avoid thrown volt meter). Fred has done what you want to do (memory-mapped (...) (25 years ago, 18-Jun-99, to lugnet.robotics.handyboard)
 
  digital output TOC3
 
HI! I would like to know how I can use the TOC3 output in the handy board to generate a PWM. Thanks in advance Berri from university of Sherbrooke (Canada) (25 years ago, 18-Jun-99, to lugnet.robotics.handyboard)
 
  Application notes on serial memory and microcontrollers
 
I found this interesting link, I think it's also well known to someone: (URL) at number AN609 ;-) (25 years ago, 18-Jun-99, to lugnet.robotics.handyboard)
 
  Memory Problem
 
Has anybody use the 62256LP-10, instead the 62256LP-120. Because I use and it doen´t work, I´m starting to think, that it may be a HandyBoard problem, not a memory one. Daniel ---...--- " `BETTER´ IS THE ENEMY OF `GOOD ENOUGH´" ---...--- (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)
 
  Re: Memory Problem
 
Daniel: Yes I am running two handy boards with 62256LP-10 's that I have stripped from a scrap controller board of some sort. They work just fine. Total cost $0.99 plus effort to desolder them from the board. Regards, Bart Schrijver. ___...___ (...) (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)
 
  Re: Handyboard Assembly Problems
 
Umar: This may sound trivial to others, but here is what I think you should do. When a new handyboard is switched on without any software loaded that drives the LCD display, you should see the first line fully dark and the second line light. So (...) (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)
 
  Handyboard Assembly Problems
 
I am assembling a handyboard, and am at stage 6.0.4, where I plug in my LCD screen for the first time. When I turn the handy board on, instead of getting the dimly lit arrays, I get a top array that is strongly lit, and bottom array that is lightly (...) (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)
 
  Re: IC Bible?
 
(...) Did you mean Interactive C manual? Just a thought, Duncan (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)
 
  Re: 6500 sonar
 
(...) TI has a *very* liberal sample policy. Visit: www.ti.com and do a part search, then order online. Cheers, Duncan (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)


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