first for the 9v batteries i only need for my project to run for a short period of time and also for the motors how would i put them in parallel and from that schematic do i need to multiply the components time 4 for each motor and will all four motors run at max power from one pin. also would it make any difference if i used the PWM pins from the duimilanove ATMEGA328. if so how would i make the programming to control all 4 motorsthank you for your help
P.S. would you happen to no how to program a usb host shield
p.s.s. would two motor controllers make it more complicated and time consuming?
I've updated focalist's schematic to (hopefully) make it more clear how to hook things up
It's really not all that different than water, and people understand pipes and valves pretty well.