stepper motor controller

Hi all,
Can someone plz tell me how to control a stepper motor with the help of 8051. If possible try to give the complete cct.
I have a bipolar stepper motor rotating an unbalanced load of 10 Kgs.

i was seeing if anyone had replied to my question when i noticed your question. i had this same problem a while back and found this web site very useful for me and my project. i dont know but maybe you can use it too. here it is: http://esd.cs.ucr.edu/labs/stepper/stepper.html

if i think of anything else i will post it. hopefully someone else may have more detailed information. good luck!

Added after 9 minutes:

i just looked at my notes and got more information for you. all these links helped me out very much. try them, there is a wealth of information about the 8051. GOOD LUCK!

http://www.cs.uiowa.edu/~jones/step/
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Added after 50 seconds:

o, sorry almost forgot this 1:
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Thanks very much dear. You were of great help.
Can someone plz tell me that for an antenna of 10 kgs what will be the torque requirement or suggest a stepper motor.

I'm sorry to add my problems to yours but I also need guidance on holding torque and so on. How big a stepper motor would I need to move something the size of a gate. I'm thinking of designing an electronically control gate using stepper motors.

was seeing if anyone had replied to my question when i noticed your question. i had this same problem a while back and found this web site very useful for me and my project. i dont know but maybe you can use it too. here it is: http://esd.cs.ucr.edu/labs/stepper/stepper.html

if i think of anything else i will post it. hopefully someone else may have more detailed information. good luck!

Added after 9 minutes:

i just looked at my notes and got more information for you. all these links helped me out very much. try them, there is a wealth of information about the 8051. GOOD LUCK!

http://www.cs.uiowa.edu/~jones/step/
**broken link removed**
**broken link removed**
**broken link removed**
**broken link removed**
**broken link removed**

Added after 50 seconds:

o, sorry almost forgot this 1:
**broken link removed**

Added after 19 seconds:

was seeing if anyone had replied to my question when i noticed your question. i had this same problem a while back and found this web site very useful for me and my project. i dont know but maybe you can use it too. here it is: http://esd.cs.ucr.edu/labs/stepper/stepper.html

if i think of anything else i will post it. hopefully someone else may have more detailed information. good luck!

Added after 9 minutes:

i just looked at my notes and got more information for you. all these links helped me out very much. try them, there is a wealth of information about the 8051. GOOD LUCK!

http://www.cs.uiowa.edu/~jones/step/
**broken link removed**
**broken link removed**
**broken link removed**
**broken link removed**
**broken link removed**

Added after 50 seconds:

o, sorry almost forgot this 1:
**broken link removed**

the circuit.