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Motor question

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winstar

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hihi,

I want to ask about the circuit named "DC motor direction controller (used in my robo)-designed by Naveen P N :- (Aug. 24th,2000)"

http://www.geocities.com/naveen_pn/circuitspage.html


I have put A and B controlled by 2 pins on AT89C51..... but it cannot work once both pins are added on ... Would you mind to tell me what wrong with this?

P.S. I could not find SK100, SL100 and BC148, so I use 2N3053,2N4403 and 2N2222 instead, is this related to this mistake?

Thanks alot
Cheers,

winstar~^-^~
 
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