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 Robotics / Handy Board / *7939 (-5)
  IR transmission
 
What value resistor should I put in series with the IR led for transmitting from the hb ?. The red led that is present as an indicator is rated for about 5mA (I think they normally run at about 2-3mA) using a 1K resistor (R5) so should I run the IR (...) (24 years ago, 14-Sep-00, to lugnet.robotics.handyboard)
 
  Got some code for you: Sonar on handy in feet & inches!
 
Hi, I wanted to see how to convert the sonar hits into feet in inches. Well as the textbook rule goes it looke like it takes 333.333 ticks = 1 inch round trip. Since the timer is running 2,000,000 counts per second. But in real life I had to fudge (...) (24 years ago, 14-Sep-00, to lugnet.robotics.handyboard)
 
  Hall Effect Encoder = sloppy, going optical
 
Well the Quad hall effect switch encoder does not give repeable resolution. If I say 14 ticks = right turn (motors going in opposite direction) well. sometime it is on the money, sometime it's not. And I don't have a racer.. I have it running slow (...) (24 years ago, 13-Sep-00, to lugnet.robotics.handyboard)
 
  Re: Rover based on Hanyboard is evolving well!
 
Sure.. hey I thought I replied to the list. Here's the picture so far.. note: lugenet doesn't allow jpeg attachments so You will get the image, lugenet will reject them. I am hoping to put up a webpage soon. I've got a few sensors I am designing (...) (24 years ago, 13-Sep-00, to lugnet.robotics.handyboard)
 
  **cant use 100 step mtr prgrm wth...
 
Hi, I am trying to use the 100 step motor code and a Hb expansion board. I can get either one of them to work ALONE ONLY. So I can only use the expansion board. OR the 100 step pcode, How do I install both so they dont conflict with one another. (...) (24 years ago, 13-Sep-00, to lugnet.robotics.handyboard)


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