Arduino Uno + DRV2605 + xbox vibration motor + external batteries

Projects General Guidance
1

Hello Everyone!

I'd like to play around with "strong" haptic feedback, like the rumble motors in the xbox controllers. I've purchased an Arduino Uno R3 and a DRV2605 from adafruit. I hooked it all up, via their instructions and it's working, but the motor doesn't rumble as much as it did in the controller. The controller normally gets its power from 2AA (3v) batteries and I tried hooking the motor up directly to the batteries and the rumble is much stronger.

Here's the question: Can I power the uno and DRV2605 separately? Can I keep the uno powered from USB and plug the battery power into the vin and ground on the DRV2605 breakout board? I'm 100% clueless here... It seems like it should work, but I don't want to fry the breakout board or the uno? If it's as simple as that, great! If not, would it be possible for someone to provide some wiring guidance?

Thanks in advance!
Clint

2

Yes you can.

the arduino then needs to be connected with the USB cable and the GROUND from the battery's needs to be connected to the Arduino! and to the motor driver.
allways connect GROUND to all the stuff you add.

ONLY!!! connect the 3V+ from the battery's to the motor driver!

3

I have "DC3V/0.1A 1.5V/0.05A 10x2.7mm Coin Mobile Phone Vibration Motor" and Arduino UNO board. How can I connect more than two motors to the DRV2605? Could anyone help me out with circuit design?

Thank you..