Category Archives: Digital

Everything and anything related to digital electronics

The Old XOR Switcheroo

Posted on 2023-04-24 by M. Eric Carr

Swap two binary integers, without using a temporary variable. Not magic — XOR. Continue reading →

Posted in Algorithms, Assembly, Coding, Digital, Math | Tagged , , , | Leave a comment

TTGO T-Display Deep Sleep

Posted on 2022-12-26 by M. Eric Carr

10mA isn’t an acceptable sleep current. Here’s how to put the TTGO to sleep. Continue reading →

Posted in Arduino, C, Coding, Digital, HOW-TO, Power | Leave a comment

Meigs Field

Posted on 2022-11-23 by M. Eric Carr

Virtual aviators — KCGX Meigs is back (in FS2020)! Continue reading →

Posted in Aviation, Digital, Flight Simulator, Games, Nostalgia | Tagged , , , , , , , | Leave a comment

Mini Museum: Punched Cards

Posted on 2022-09-26 by M. Eric Carr

Data was once stored on punched cards, which allowed for direct manual data entry. Continue reading →

Posted in Coding, Digital, Mini Museum, Nostalgia | Tagged , , , , , | Leave a comment