Category Archives: Digital

Everything and anything related to digital electronics

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

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

TinyFPGA / ICEStudio

Posted on 2020-03-31 by M. Eric Carr

The TinyFPGA BX, plus ICEStudio, make FPGA development open source and almost Arduino-easy. Continue reading →

Posted in Digital, Electronics, FPGAs, Reviews, Tools, Toys, Verilog | 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