I am using the instructibles motor shield from
I am using it to run a thin gear box for use as a line follower/sumobot. The l293 were getting a little to hot during operation so I figured I would switch to the sn754410 that is suppose to have the same pin pattern. When the sn754410 is in the circuit nothing happens. I tried several chips all with the same outcome. The L293 always work. What would I have to do to the instructibles circuit to make it work with the sn754410?