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 ...

Do you feel nostalgia for a childhood novelty toy that had potential but ultimately fell short of its promise? Do you now have the skills to go make a better version of that toy to satisfy your ...

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 ...