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Re: [beam] Newbie needs help with solarbotic solar speeder

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  • Tyson B.
    your solar panel might not generate enough voltage to trigger the 1381j. if you do have enough voltage, I can t help you ;) ...
    Message 1 of 3 , Feb 1, 2001
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      your solar panel might not generate enough voltage to trigger the 1381j. if you do have enough
      voltage, I can't help you ;)


      --- James Boorn <jboorn@...> wrote:
      > I assembled the solar speeder and it didn't work. Disappointing, but
      > not to surprising as this was my first soldering attempt. I decided to
      > take it apart so I could breadboard it. The PCB now has burn spots, is
      > that bad? I breadboarded it and it still didn't work. So I attached
      > the 9V power supply to the circuit and it worked. When I remove the
      > power the motor runs for a little bit. So I feel confident that all the
      > parts are still good. I set up a simple circuit with a small resistor,
      > green led, and the solar panel. When I shine a bright light on the
      > solar panel the led lights up (I disconnect the circuit while leaving
      > the light on to be sure the led was on and not reflecting). So I feel
      > confident the solar panel and my soldering of the wires on it are good.
      > So why doesn't the solar panel charge the capacitor, or the 1381
      > trigger? Did I indeed fry some component in a way that it appears to
      > work with enough voltage?
      > I just discovered the local robot club's
      > website(http://www.seattlerobotics.org) their meeting is two weeks away,
      > is anyone here going that would be willing to help me in person if I
      > don't figure it out by then?
      >
      > Thanks
      > James Boorn (defeated by simplest beam design)
      >


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