True, okay Ill see what I can do - thanks for all the help!
electricviolin:
(VCC2) Pin 8 go to 12V
(VCC1) Pin 16 go to 5V
(1,2EN - 2,3EN) Pin 1 - Pin 9 go to 5V
(IN 1 - IN 4) Pin 2 - Pin 15 go to logic 1
(IN 2 - IN 3) Pin 7 - Pin 10 go to logic 2 (opposite of logic 1)
(OUT 1 - OUT 4) Pin 3 - Pin 14 go to coil side 2
(OUT 2 - OUT 3) Pin 6 - Pin 11 go to coil side 1
(GND) Pin 4 - Pin 5 - Pin 12 - Pin 13 go to GND
The above is incorrect for the L293D.
If you look at the L293D pinouts, you will notice that the order of the functions of pins 9 to 16 are a mirror-image of 1 to 8.
So what you need in order to parallel the device is:
(VCC2) Pin 8 connect to 12V
(VCC1) Pin 16 connect to 5V
(1,2EN - 3,4EN) Pin 1- Pin 9
(GND) Pin 4 - Pin 5 - Pin 12 - Pin 13
(1N 1- IN 3) Pin 2 - Pin 10
(IN 2 - IN 4) Pin 7 - Pin 15
(OUT 1 - OUT 3) Pin 3 - Pin11
(OUT 2 - OUT 4) Pin 6 - Pin 14
The cross-over wiring is not that "tidy" but it will work.