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chak
07-26-2008, 07:47 PM
I am using Futabas s3003, controlling it with pwm thru AT89S52 (8052)

my problem is no matter what be the length of pulse, d motor always goes to extreme position.
however depending upon the length of pulse, its accleration may be large or small.
0.5 ms pulse---------low acclrtn to extreme position
1.5 ms pulse---------higher acclrtn to extreme position

I have tried timings like 0.5, 1.25, 1.5 etc

please help me out

DIXING
03-25-2009, 12:32 AM
whats the circuit and code ? just attch may be i can help

allbits
03-26-2009, 09:48 AM
make sure you are giving the correct pulse. use a CRO.

or may be the servo is burnt .