I'm using a deek-robot motor shield that has a L293D chip (http://www.deek-robot.com/productShow.asp?id=17). I've connected a 12 volt (4A) power back to the VCC input and IN pints to an Arduino Leonardo board as well as VIN power from the arduino.
I have a motor from a 3.6v cordless drill (comes with a 3.6v batter 1300mamps) that I want to power.
The problem is that the motor driver doesn't seem to be suppling enough power to the motor.
If I hook up a little tiny motor I can get it working but the 3.6v based motor just hisses but won't actually turn.
Additionally I combined outputs A and B into one as each are rated to 600mha so I was hoping to draw enough power this way. That still didn't work.
The voltage output from the A+ and A- terminals are 12 volts.
Not sure what is happening here. How can I get this motor to turn?