Category Archives: Electronics

Quadrature Encoders

Posted on 2022-06-30 by M. Eric Carr

Quadrature rotary encoders are inexpensive and very easy to wire up. Here’s how to use them with interrupts in Arduino C for ESP32. Continue reading →

Posted in Arduino, Building blocks, Digital, Electronics, HOW-TO, User Interface Design | Tagged , , , , , , , , , , , , | Leave a comment

New Toy: Round LCD Displays

Posted on 2022-05-29 by M. Eric Carr

Round, Arduino-friendly color LCD displays. These should be fun… Continue reading →

Posted in Arduino, Components, Digital, Toys, User Interface Design | Tagged , , | Leave a comment

PCBWay

Posted on 2021-05-18 by M. Eric Carr

The Hex Decoder project finally gets a modern PCB, thanks to PCBWay. Continue reading →

Posted in Design, Digital, DrACo/Z80, EET325, Electronics, PIC Microcontrollers, Reviews | Leave a comment

Warranty Not Void If Removed

Posted on 2020-10-03 by M. Eric Carr

Turns out those pesky “Warranty Void If Removed” stickers … are illegal. Continue reading →

Posted in Current Events, Digital Citizenship, Electronics | Leave a comment