Posts

A switching voltage regulator is one of my favorite circuits. In school, they were the first circuits I built where I understood how transistors worked. In fact, they were the …

This past weekend Arduino fans celebrated Arduino and Genuino Day 2016. In classrooms, maker spaces, and impromptu meet-ups around the world enginerds got together to learn and …

This week’s post is from my friend John Teel. I asked him to help answer a common question I receive: " How do you make an Arduino project into a product?" His experience as an …

Previously I wrote up why the 9V battery sucks. As I thought more about that post, I realized, I never explained how much energy is in a 9 V battery versus say a couple of AA …

Reading a blog post like this one is something we all do multiple times a day. As early as 20 years ago, such a concept was still entirely unknown to the rest of the world. Walter …

Back in December, John Day’s Automotive Electronics Blog featured a post I wrote. The subject was KEMET’s (then) recent Automotive product introductions. Here’s a summary of the …

Think you can do without Pull-Up Resistors? Only Chuck Norris doesn’t need them.

A DMM, or multimeter, is the go-to instrument for debugging most circuits. You probably already have at least one DMM on your bench for this reason. Me? I have three. But that’s a …

A couple of weeks ago I posted four things to know about the ESP8266 before using one. The biggest surprise from that post is people seem to think I do not like the ESP8266! This …

This week’s MQTT Tutorial connects a Raspberry Pi, ESP8266 (or Arduino), and a PC together. Remember last week’s post provided an overview of message brokers and MQTT. We learned …