Hi, I need to shorten a vibration motor 'Buzzzzzzzz' to 'Bzz', on an Arduino. I have two motors on digital pwm pins and will put them on analog pins. All online help I can find for DC motors ...

Because students are using it, it needs to be short-circuit-proof – no possibility that a mix-up in control signals can cause the drive to short out the rails (see DANGER, right). BTW, don’t use these ...