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 Robotics / Handy Board / 4865
    Sonar question
   Hi to all, I would like to know what difference there are if I connect the 6 diodes between the Handy Board & the Polaroid Sonar Card. Can I connect the cards without diodes? I tested the voltage at the Catode at the end of the 6th diode and my (...) (26 years ago, 3-Dec-98, to lugnet.robotics.handyboard)
   
        Re: Sonar question
   The Polaroid Sonar board requires a supply voltage less than 7 volts. The battery of the handy board is around 12, so you'll probably shorten the life of your sonar board considerably if you connect it straight in (i.e. burn it up :.)). The diodes (...) (26 years ago, 3-Dec-98, to lugnet.robotics.handyboard)
   
        Re: Sonar question —Tom Brusehaver
   (...) The battery for the handy board is a 9.6V cell (8 * 1.2V cells in series.) A normal 1n400X diode will drop 0.7V each. (6 * 0.7 = 4.2) 9.6 - 4.2 = 5.4V (26 years ago, 3-Dec-98, to lugnet.robotics.handyboard)
   
        motor questions using motor(x,y) —Shiva Sinha
   Hi all, The motor(x,y) function in the lib_hb.c file works as expected (the motor speed does vary depending on value given and the correct motor goes on), but when I actually have a motor in the header both LEDs go on! (and I get corresponding (...) (26 years ago, 3-Dec-98, to lugnet.robotics.handyboard)
 

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