Hi, I am driving two small DC hobby motors in a gear box assembly, that drives two tank tracks. I wanted to power the F628, SN754410 and two motors all from the same 4AA batteries. If I drive the two motors right off the 4 AA batteries, the tank tracks are powerful and can drive over a thick book. However, when I power the pic/SN754410/2 motors, the motors are barely able to turn the tracks ? In the F628, I have port A set as digital, and set ra1, and ra0 high and low to turn on motor a, and follow the same for ra2 and ra3, for motor b (through the SN754410 of course.) The SN7554410 is just a 1 amp version of the L293D. port b is set as output and all pins low. I quess I'm just looking for a sanity check, I can't believe the F628 and H bridge chip are using up so much current that the motors can't even turn the tank tracks ? I have both enable pins on the h-bridge chip tied to the +5v supply through a 10k resistor. Any one familiar with these chips ? Any thoughs on what's happening ? Thanks, Kevin Please reply to PICLIST@MITVMA.MIT.EDU as my ISP is unable to take my address out of the reply to field. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu