Would there be any reason why I couldn't use this H-Bridge for multiple things at once? Could I use 1/2 of it to control a 12 volt DC motor @ 500 mA, and then another leg of the other side to give 12 volts to a 12 volt light strip that pulls a few hundred mA?
That’d be okay.
CrossRoads: That'd be okay.
thanks, I thought so, but figured I'd be sure.
The ground of the led strip can be connected to ground, and not a low output of the driver. You can use every output for leds or solenoids, but the enable pin will control two outputs.
I use this possibility here: http://arduino.cc/playground/Main/AdafruitMotorShield