Electronics Blog

Tutorial on Logic Gates Part 2: Electrical Properties of Gates

A while back I published a tutorial on the basics of logic gates. The tutorial talks about what logic gates are, truth tables, and active levels.

Then, the tutorial talks about the basic logic gates many of us are familiar with: NOT, AND, OR, NAND, NOR, XOR, and XNOR.

Because of limited space, the post did not cover Boolean algebra, DeMorgan’s theorems, combinational logic, etc. It also leaves out an important and practical part of digital design with gates – the electrical characteristics of logic gates.

This tutorial on logic gates will with leave the topics of Boolean algebra, DeMorgan, etc. for a future tutorial.

This time, we’re going to focus on the important and practical, yet often overlooked, electrical properties and characteristics of logic gates.

Back to the Basics: What is Electric Current?

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This post will tackle the age-old question what is electric current?

It is another write up on a basic, yet fundamental and important topic.

We’ll also try to keep this one a bit shorter than usual. After all, I know the nice long holiday weekend is on everyone’s mind (at least if you live in the U.S.) and I’m no exception.

Plus, this fundamental question shouldn’t take 2000 words to answer.

As usual, I’ll give a similar disclaimer to the ones I often give for posts on the basics. Some of you already know this. If so, it will be a good review. If you’re just starting to learn about electronics, the information in the post is need to know, so please read it.

And now let’s find out the answer to what is electric current…

3 Circuits You Totally Need to Know About

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With today’s components, it is possible to make thousands upon thousands of useful circuits. These range from the very simple to very complex. But, did you know that there are only three basic types of circuits anyone can create? That’s right, every schematic you’ve ever seen, every circuit or project you or anyone else has ever built is one of three types of circuits (or a combination of them). [Read more…] about 3 Circuits You Totally Need to Know About

C Programming Tutorial 6: Intro to Arrays in C

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Welcome to another C Tutorial! This time we’re going to delve into arrays in C programming.

Arrays are important features in many programs. They enable you to store several items of related information in a convenient way. They’re good for collecting data, pin numbers (i.e. for Arduino), storing variables and more.

Let’s start by talking about what an array in C actually is.

An Introduction to Servo Motors

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Since the early 1990’s the servo motor has been finding its way into robotics projects more and more often.

But what is a servo motor?

How do servo motors work?

This introductory tutorial on servo motors will answer these questions.

If you’re into electronics, you may have heard the word servo or servo motor thrown around.

If you’re a robot builder or into model planes, boats, and cars, there’s a chance you know something about servo motors.

The benefits of using servos for robotics and other things are many. They’re small, light, relatively cheap, and easy to use. And most of them sport a design that makes mounting a snap.

Let’s dive into some detail on how servo motors work.