View Full Version : plz help with stepper motor drivers!!

12-01-2008, 12:02 PM
hi guys..

I m makin micromouse for which i need to drive two stepper motors..

stepper specification-
500mA, 6-12v(operating voltage)..
so i m a bit confused as to which stepper driver to use??

ULN2803 or ULN2003 or L298???

plz help me with the appropriate ctk too..m completely new to d usage of steppers..

12-02-2008, 04:22 PM
What kind of Stepper motor do you have?

Is it Unipolar or Bipolar?

If Unipolar use ULN2003
If Bipolar use L298D

They must work fine, for what rating you have given.

12-02-2008, 10:57 PM
thanx penguin!!

i have UNIPOLAR motors....

so wud b usin uln2003 onli..
thanx once again!!

12-04-2008, 05:12 PM
for two motors, use 2803.

12-04-2008, 09:11 PM
hey buddy may u plz b more specifically discuss about the 2803 stepper motor drivers!!
As in does 1 2803 drives two steppers??
yes i m using two stepper motors..

plz dude share a bit of more gyaan abt 2803..
wats its ckt!!

anyways thanxs for ur reply man!!

12-06-2008, 10:15 PM
2003 has 7 darlington pairs
2803 has 8 darlington pairs

12-08-2008, 05:25 PM
thanx dude,

i want to connect 2 stepper motor with one ULN2803,

so pls guide me with the connections.....

12-10-2008, 04:59 PM
its the same as 2003.

Now if you want the circuit of 2003, sorry i dont feel like helping!!!
( you have to do atleast something on your own )

12-16-2008, 12:30 PM
hey this this neeraj here

im actually participating in robocan a national level competetion..i wanted to know if i could gt any help in funding from u guys.....
I would be very thankful if u could help me out