Screaming Circuits: Engineer stories

PROTOTYPE AND SMALL VOLUME
PCB ASSEMBLY MADE EASY

Multidisciplinary Trivia

I sometimes spend my Tuesday evenings engaging in pub trivia. It's a thing here in Oregon - maybe in other places too. I do okay, but there always seems to be too many sports and contemporary pop culture questions. I'm... Read more

A Question on Schematic Style

Just a quick question here... I'm placing the components for my TinyFPGA based stepper motor controller board (see the prior articles here first, here next, and here last). Specifically, I'm finding places for all of the capacitors. That's where the... Read more

The QFN Rides Again - a Brief Update

If you've been following this series, you've likely come to the determination that I've fallen behind, or forgotten about the project. I haven't forgotten, but I have fallen behind. When I last wrote about the project (here), I had examined... Read more

Make that Three QFNs

It's a new weekend, and I'm back to my obsession with stepper motors. If you haven't read part one of this series yet, go back and read it here. That's not an order; more of a plea. In any case,... Read more

A couple of QFNs and Circuit Maker CAD software

It's about time for another project. I normally design half a dozen or so small boards per year. It's not my profession. It's just something I do. But I haven't designed or built anything since the "incident" with the photo... Read more

Twelve Things that started in 2017 and will finish in the next decade or so

It seems like not but just a year ago, I was already forgetting to write a new year's prediction blog post. If that didn't make much sense, then likely neither did my predictions post from a year ago. I started... Read more

Merry Mosfet!

What is Mosfet day and why should you care? Mosfet day is a holiday, on December 23rd of each year, all about celebrating what we are collectively capable of doing, if we set our differences aside, if we look at... Read more

Five traps to avoid when changing from hand assembly to machine assembly

In the past, it was usually pretty easy to find chips in both surface mount and thru-hole packages. Somewhere in the last decade or so, component manufacturers stopped introducing thru-hole versions of their newest chips as standard practice. In many... Read more

Mistakes Were Made - Too Much Ground Isolation

I recently ran a batch of my Neo Pixel clock boards through the factory here. It's an Arduino UNO-based design that I made for myself not long ago. It sports an Atmega328P, with bootloader, an FT231X USB chip, and a... Read more

Out of Ideas and applied Heisenberg

Every now and then, most of us seem to run out of ideas. Then, like the proverbial high school term paper, with a subject requirement of: “Pick a subject you’re interested in”, we struggle to come up with what to... Read more