Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: robotic-amatuer on March 01, 2011, 10:00:46 PM

Title: i need help with my motor driver!!
Post by: robotic-amatuer on March 01, 2011, 10:00:46 PM

hello,
       
       Im new to the robotics world, and im trying to add a homemade motor driver to my atmega168 board i made with the help of societyofrobots.com. my basic motor driver concept is to control two standard dc motor with two i/o ports in which they hook up to, and an i/o port to which my power supply will be connected to. im using a sn754410 quadruple half-h driver to control two standard dc motors for a robot tank. i dont know much about motor drivers but i kind of have an idea on how they work. i just need help in hooking up my motor driver to my atemga168 board. i yet dont know what should be connected to which pins on the atmega168 mc.

          plzzz help me!
       

Title: Re: i need help with my motor driver!!
Post by: praveen_khm on March 02, 2011, 01:38:32 AM

Did you check the datasheet? It tells you the pin details and some technical stuff.

I found a good explanation for SN754410 pin connections at hobbyengineering.

http://www.hobbyengineering.com/appHBridge1A.html (http://www.hobbyengineering.com/appHBridge1A.html)

Title: Re: i need help with my motor driver!!
Post by: Soeren on March 02, 2011, 04:43:41 AM

Hi,

Quote from: robotic-amatuer on March 01, 2011, 10:00:46 PM

[...] my basic motor driver concept is to control two standard dc motor with two i/o ports in which they hook up to, and an i/o port to which my power supply will be connected to. im using a sn754410 [...]

You should NOT connect any I/O pins to the power supply!!

Please post a schematic of how you connected things up.