Category Archives: Electronics

Stupid Op-Amp Tricks

Posted on 2026-04-30 by M. Eric Carr

Op Amps are the Swiss Army Knife of analog electronics. Continue reading →

Posted in Analog, Components, Electronics | Leave a comment

Components: LM386 audio amplifier

Posted on 2026-03-30 by M. Eric Carr

The LM386 audio amplifier is a convenient way to add a speaker amp to electronics projects. Continue reading →

Posted in Analog, Audio, Building blocks, Components, Electronics | Leave a comment

Serial LED Matrix

Posted on 2025-12-31 by M. Eric Carr

Daisy-chained SPI interfaces and fast microcontrollers make driving large, bright LED displays easy. Continue reading →

Posted in C, Components, Electronics, Toys, User Interface Design | Tagged , | Leave a comment

Nerd Sniped

Posted on 2025-09-28 by M. Eric Carr

In which I self-nerd-snipe and find an empirical answer to the original xkcd Nerd Sniping problem Continue reading →

Posted in Analog, BASIC, Coding, EET201, Electronics, Lore, Machine Learning / Neural Networks, Science | Leave a comment