For all of you who have a multimeter thrown in a drawer or toolbox but don’t know how to use it, these instructions will help in your search for missing voltage.

In this article, I’ll show you how to use a multimeter to troubleshoot some basic electronic components, such as resistors.

One of the simplest tasks a digital multimeter can perform is a basic voltage test on a car battery. Positive and negative terminals, hooked up to the car or not, will give a base number.

Also, unlike Continuity Sketch, where the sketch doesn’t appear until you tap Done on the iOS device, your scribbles on your iOS device show up in real-time on your Mac’s screen. Here’s how you use it ...