Small vibration units in cell phone.

[steven2410]

Hi everyone. So I have this idea to build a card holder that will vibrate (like a phone) when a card slip out of place. In order to do that, i need a a small vibration motor! I end up extract one from the old nokia phone but it's doesn't work when connect to DC supply. Does it need a oscillating voltage supply to work? How to achieve maximum vibration? Is there any places i can get similar thing?

 

[D.A.(Tony)Stewart]

It is called Haptic Feedback using rotating miniature offset balance motor.

https://www.precisionmicrodrives.co...vibration-motors/pcb-mounted-vibration-motors