Author Archives: M. Eric Carr

Arduino Step By Step

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

I recently came across a very interesting Udemy course called “Arduino Step by Step: Your guide to the Internet of Things.” It covers everything from blinking a LED (the traditional microcontroller take on “Hello, World” to Internet-connected applications. It’s only … Continue reading →

Posted in Arduino, Current Events, Digital, Resources, Reviews | Leave a comment

Word Lens

Posted on 2014-12-22 by M. Eric Carr

Word Lens is an Android-based Augmented Reality app that can translate text on the fly, using the camera. Continue reading →

Posted in Android, Reviews, Tools, Toys | Leave a comment

The EBCs of BJTs

Posted on 2014-11-30 by M. Eric Carr

Bipolar Junction transistors (BJTs — NPN and PNP types) are inexpensive, reliable, relatively easy to use, and very useful. Here’s how they are used. Continue reading →

Posted in Analog, Building blocks, Components, Electronics, HOW-TO | Tagged , , , , , , , | Leave a comment

Components: Servos

Posted on 2014-10-31 by M. Eric Carr

Servo motors are useful devices. Here’s how to drive them using a microcontroller or similar device. Continue reading →

Posted in Components, Digital, Electronics, HOW-TO, Robotics | Leave a comment