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Motor Controllers And Drivers

As some of you may be aware of I have been having a very difficult time with finding a motor controller/ driver that works for me. There are a lot of sucessful, working robots being made by builders in this community so I thought I'd throw a general question out. What motor controllers are most of you using and have had the most sucess with? What controllers have you found easiest to connect and configure? Since there are so many "working" bots out there it's obvious that there has to be controllers that work! I really would appreciate any comments and suggestions as I'm at a complete stand still with my robots.
I must admit it does puzzle me. It seems there are a lot of you using the L289N with sucess. Is it a possibility that in buying the cheap ones from China I've gotten 3 bad controllers? Wouldn"t that be the pitts!?
Thanks,
Lloyd

I just had an additional thought. I just realized that in all this time ( since finding the EZ-B, probably close to a year) I have never yet completed a working robot! I have never been able to get beyond motor control. I have at least a dozen projects started and all at a standstill because of motor control issues! I've invested a lot of time and money and I'm extremely frustrated!!!!!!!!!!!!!!!!!!!!!!!! I could REALLY use some assistance from some of you that have suceeded in building working robots!


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#1  
It has to be a setup issue. I have (6) L298N controllers from
China.

They all work perfectly.

I also run a Sabertooth 2X25 and SyRen10 and they both work
perfectly as well with EZ-B.

Do you have a multi-meter?

Can/Did you check continuity of your wire connections?
#2  
@ Lumpy:
I believe you may have read, or even taken part in my post under "Hardware" entitled, "Back again with L289N questions". I have given a very detailed description of the troubleshooting efforts I have tried. Yes, I have checked the continuity of the connecting wires and have even changed all the wiring and components. Please feel free to reread all of the posts. I am fairly confindent that I have been very diligent and through in my efforts; however, I certainly could have missed something. I welcome any assistance and suggestions you may care to offer.
Thank you very much.