[Trax] was asked by a friend to build a device that could detect the presence of a car in front of his garage gate for it to open automatically. After searching the web for such a project and trying ...

Some operational amplifiers (op amps) have an inductive open-loop output impedance, which can be more complex to stabilize than op amps with resistive output impedances. One of the most common ...

There are few things in this world that are more mildly infuriating than being stopped at a deserted intersection at a red light that just won't change. You have already read my article about ...

Engineers have used inductive-loop probes for many years to troubleshoot high-frequency circuits and locate emissions. These probes, which can be homemade or purchased commercially, rely on mutual ...

Much like George Lucas and the original Star Wars films, many of us may find that our passion projects are never quite finished, especially when new technology comes around or we just want to make ...