Author Archives: M. Eric Carr

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

FreePCB Arduino Shield Template

Posted on 2014-09-16 by M. Eric Carr

Having been too busy / lazy to sit down and learn Eagle CAD or another “real” PCB program, I’ve been using FreePCB to make all kinds of PC boards on the LPKF board plotter at work. With our increasing use of … Continue reading →

Posted in Arduino, Design, Digital, Electronics, Resources | Tagged , , , , , , , | Leave a comment

User Interface Done Right

Posted on 2014-09-01 by M. Eric Carr

Advances in technology often make possible new, more efficient ways of doing things. This can certainly make our lives easier and more enjoyable. As with any change, however, there can be drawbacks. The operation of new devices is not always … Continue reading →

Posted in Design, Digital Citizenship, User Interface Design | Leave a comment

How Not To Code

Posted on 2014-08-08 by M. Eric Carr

Recently, my friend Dan shared a thought-provoking picture of a quote by Martin Golding:   When I first started writing programs back in the Dark Ages (1980s), I wasn’t even aware that coding styles existed. Not only did I probably … Continue reading →

Posted in BASIC, Coding | Leave a comment