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    Re: Magnetic Levitator —Christopher Snead
   (...) I think that it would be possible to use an RCX. I used four op amps in my circuit; the first amplifies the signal coming from the phototransistor, the second differentiates the signal, the third takes the difference of the proportional and (...) (23 years ago, 7-Dec-01, to lugnet.build, lugnet.general, lugnet.robotics)
   
        RE: Magnetic Levitator —B. Shahian
   We tried using the Handyboard (which is faster than RCX) and it could not do it. I think the RCX is not fast enough for UNSATBLE control systems such as magnetic levitation, etc. A while back, I proposed the inverted pendulum problem as a challenge, (...) (23 years ago, 7-Dec-01, to lugnet.robotics)
 

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