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 Robotics / Handy Board / *199 (-5)
  zener diodes
 
Bad idea. A small difference in ref voltage will drive most of the current through one of the two. That's also why I believe that putting l293D in parallele is also a bad idea. In practice it seems that sometimes it works. It is just a bad design. (...) (29 years ago, 22-Mar-96, to lugnet.robotics.handyboard)
 
  zener diodes
 
I'm trying to use zener diodes to regulate the voltage being supplied to some motors I'm using with the handy board. I'm curious, though, can zener diodes be placed in parallel to handle more current? My understanding of their properties isn't (...) (29 years ago, 21-Mar-96, to lugnet.robotics.handyboard)
 
  add to mailing list
 
LS ``Please add me to the Handy Board mailing list'' Greetings, jluijk@xs4all.nl (29 years ago, 21-Mar-96, to lugnet.robotics.handyboard)
 
  Resets
 
I traced my reset problem down to the fact that there is a ton of electrical noise in the chip power (+5V). The noise is there only when motors are running. After a minute or so of running the motors, I'll get a runtime error or the board will just (...) (29 years ago, 21-Mar-96, to lugnet.robotics.handyboard)
 
  RE: Motor control
 
I would rather have use of the 0 to 8 range because many of the values in the 0 to 100 range simply fall into groups which give only 9 speeds. However, I do not support rewriting the IC code. Tom's suggestion, motor(1,value*14), is simple and meets (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)


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