Category Archives: Arduino

Printing Large Numbers on Arduinos

Posted on 2020-08-11 by M. Eric Carr

How to print unsigned 64-bit integers simply in Arduino C, using decimal long division. Continue reading →

Posted in Arduino, C, Coding, HOW-TO, Math | Tagged , , , , , , , , , | Leave a comment

DIY scroll wheel

Posted on 2020-07-31 by M. Eric Carr

An Arduino Leonardo can be used to add scroll wheel functionality if your mouse doesn’t have it. Here’s how. Continue reading →

Posted in Arduino, C, Coding, Digital, HOW-TO, User Interface Design | Tagged , , , , , , , , , , , , | Leave a comment

Back EMF

Posted on 2020-02-03 by M. Eric Carr

Lenz’s Law explodes an NMOSFET and kills an Arduino Uno. (Sometimes, Science goes bang.) Continue reading →

Posted in Analog, Arduino, Digital, Electronics, Fundamentals, Power, Toys | Tagged , , , , , | Leave a comment

Qu’est-ce que JeVois?*

Posted on 2020-01-31 by M. Eric Carr

One of the best things about embedded electronics is that it seems to always be Christmastime. Inventive engineers are constantly coming up with devices to make previously complex tasks routine and previously impossible tasks merely challenging. Problems that you thought … Continue reading →

Posted in Arduino, Current Events, Digital, Tools, Toys | Tagged , , | Leave a comment