interfacing hobby servo motor with 89v51rd2

[pratik]

i m trying to interface hobby servo with 89v51rd2 for testing its running.

at 1500 microsecond pulse width, it oscillates abt a position (may be center), but even if i change the pulse width, it doesn’t achieve motion in it, i have given 1250 microseconds and 1750 microseconds pulse width to it. the control pulse is given by 89v51rd2 via buffer 74hc244.

[Amrith]

hi pratik,

 

Follow up below link & read the data sheet two time to solve your issue.

 

http://www.basicx.com/Products/robotbook/servo%20intro.pdf

[AJISH ALFRED]

 

Hi,

 

I believe you are using timers to generate pwm with exact pulse width. The minimum response time required for the servo can vary with the manufactures. Please share the part number of the servo you are using.

[pratik]

hi ajish,

thanx for reply, actually the servo i m using is futaba servo s3003. the inputs are given according to datasheet. i have a doubt about the condition of the motor or its internal circuit being damaged.  is there any check for that?

[AJISH ALFRED]

 

Hi,

 

I don’t know any direct method.

There could be issues with your power supply also, may be it is failing to deliver enough current. Check the three pins for any voltage drop.

 

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