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 Robotics / Handy Board / *7585 (-5)
  Re: Motor Drivers
 
300 mA shouldn't be a problem. are your main batteries low? alternately, are you sure it's 300 mA at 9v? can you measure it somehow. fred In your message you said: (...) (25 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
 
  Motor Drivers
 
I am trying to run a light with the motor outputs on the handy board. I looked up the spec on the L293D and it claims to be capable of 600mA constant and 1.2A peak. The miniature light I am using draws about 300mA. When the light comes on the handy (...) (25 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
 
  Re: sonar mapping with evidence grid
 
(...) home (...) I have read that it is not actually a solid cone angle, but a peak central lobe and a few side lobes. I think the best way to figure this out is to mount your sonar sensor on a rotatable head and go out to an open field. Place a (...) (25 years ago, 5-Apr-00, to lugnet.robotics.handyboard)
 
  Re: LED's
 
[Derek Healy] spake unto the ether: (...) This is just an idea skeleton, but not too hard to flesh out, if you've worked with TTL. The Handy Board memory map maps some upper 32K addresses to I/O "ports". Look at the schematic and you can see which (...) (25 years ago, 5-Apr-00, to lugnet.robotics.handyboard)
 
  LED's
 
Hi, could anyone tell me how I might light LED's in sequence so that they would simulate a rev counter of an automobile & to also simulate the speed counter. I need to know how I might wire them up and how I might be able to program them using time (...) (25 years ago, 5-Apr-00, to lugnet.robotics.handyboard)


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