im using them because they are already done... all i need to do is output a serial command, and the motors drive...

example command:

serout2 motor, motorbaud,[$80,0,lfwd,speed]

$80,0 are commands for the driver. lfwd is left forward. and speed is one of 128 speeds

i send one command and the motor driver keeps it at that speed until i tell it to change.. lots less for the PIC to worry about..

im jsut worried about the "electronic" noise affecting the PIC and other stuff on the board...

my tracks are probably a little small for you... the "tiles" on the floor are 6 inches across, so my tracks are tiny... they came from a tamiya dozer kit, it was the leftover track parts. each side has 3 pieces of track connected together...

when i get home, i will upload a picture of the tracks on one of my other toys... they would be almost perfect for a lawnmower, except that they would rip up all the grass!!!!