Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: ukesh on June 30, 2009, 09:18:46 AM

Title: Reversing Motors Using L293NE
Post by: ukesh on June 30, 2009, 09:18:46 AM

hiya!

can the motor direction be reversed just using the L293NE. I'm basically trying to build an Obstacle avoiding bot by just using the L293 IC. Im using two IR sensor modules in the front for sensing. I just want my bot go backwards when it detects some objects. Rite now my bot stops a few cms away from the obstacle. Can the reversing be achieved?

(Ps:- Sorry if this sounds NOOBISH)

Title: Re: Reversing Motors Using L293NE
Post by: Conscripted on July 01, 2009, 07:52:53 AM

It looks like it can. http://www.chipcatalog.com/TI/L293NE.htm (http://www.chipcatalog.com/TI/L293NE.htm) Scroll down to "typical application" and it will show you how

Conscripted

Title: Re: Reversing Motors Using L293NE
Post by: ukesh on July 01, 2009, 08:01:51 AM

hey sorry, I didnt get you. i searched the data sheet and i couldn't find how to reverse the motors! could you elaborate if u dont mind?

Title: Re: Reversing Motors Using L293NE
Post by: Conscripted on July 02, 2009, 12:13:07 PM

I got this off of page 9 of the data sheet. It shows how to control one motor bidirectionally using half of the L293. You can use the other half to controll the other motor.

Conscripted

Title: Re: Reversing Motors Using L293NE
Post by: ukesh on July 09, 2009, 10:43:32 AM

thnx man!

Title: Re: Reversing Motors Using L293NE
Post by: Conscripted on July 09, 2009, 09:53:20 PM

your welcome