Author Archives: M. Eric Carr

Amazon Dash

Posted on 2015-09-06 by M. Eric Carr

I’m starting to think Amazon is evil. They keep coming up with cool ways to make me spend money. Recently, I tried Amazon Fresh — Amazon’s new grocery-delivery service. I’ve been very impressed so far: they give one-hour delivery windows, … Continue reading →

Posted in Current Events, Design, Networking, Reviews, Toys, User Interface Design | Tagged , , , | Leave a comment

Microcode

Posted on 2015-08-30 by M. Eric Carr

Every so often, you come across an idea that is truly brilliant. Such ideas can sometimes make complex, expensive problems seem trivial. The idea of microcode is one such idea. In order to work its magic, the* Central Processing Unit(CPU) … Continue reading →

Posted in Design, Digital | Leave a comment

Geomagnetism

Posted on 2015-07-30 by M. Eric Carr

With a compass, some wire, and a power supply, the Earth’s magnetic field can be measured. Here’s how. Continue reading →

Posted in Electronics, Fundamentals, Science | Leave a comment

Your Amplitude May Vary

Posted on 2015-07-01 by M. Eric Carr

When is a volt not necessarily a volt? When it’s an output amplitude from a signal generator which doesn’t measure its own output… Continue reading →

Posted in Analog, Digital, Drexel, EET201, EET202, Electronics, Tools | Leave a comment