Category Archives: Drexel

Topics related to my work and study at Drexel University

Indistinguishable From Off

Posted on 2020-05-26 by M. Eric Carr

A Z80 computer stops working in the middle of programming — or does it? Continue reading →

Posted in Digital, DrACo/Z80, Drexel, Electronics, Fundamentals, Power, Troubleshooting | Leave a comment

Mystery Resistance

Posted on 2018-07-13 by M. Eric Carr

In which I learn several things and unwittingly become a voltage divider. Continue reading →

Posted in 3D Printing, Design, Digital, Drexel, EET201, Electronics, Fundamentals, PIC Microcontrollers | Leave a comment

Programming the DrACo/Z80

Posted on 2017-05-28 by M. Eric Carr

Instructions on how to program the DrACo/Z80, including dealing with the weird Z80 quirks… Continue reading →

Posted in Assembly, Coding, Digital, DrACo/Z80, Drexel, EET325, Electronics, HOW-TO | 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