With loudspeakers, an important parameter is the frequency at which their cones resonate. This clever Arduino-based tester ...

For switching high-powered loads from a microcontroller, or for switching AC loads in general, most of us will reach into the ...

Farran Powell is the managing editor of investing at Forbes Advisor. She was previously the assistant managing editor of investing at U.S. News & World Report. Her work has appeared in numerous ...