After getting some mini massagers for the fair sex from a discount sale fair, I started thinking about vibration/haptic motor projects again! I’m in the middle of a lot of projects based on small ...

I have a pair of vibration motors that alternately buzz, attached to an Arduino. At the moment the on / off is managed by delay() which takes it's value from a potentiometer via an int potValue. The ...

I need two buzzers alternating on / off on one pin. Is it possible to get ‘opposite’ transistors in series? One that grounds when the base goes high, one that grounds on low? In that way they can be ...