Latest Technical Articles

This two-part project will begin by showing you how to create a robot base from a used electric wheelchair. Part 1…

This two-part project will begin by showing you how to create a robot base from a used electric wheelchair. Part 1 creates a simple robot platform for use with remote control. Part 2 will develop a platform for use with and Arduino.

In this article, we’ll discuss MOSFET small-signal output resistance as we make our way toward predicting the gain of…

In this article, we’ll discuss MOSFET small-signal output resistance as we make our way toward predicting the gain of the actively loaded differential pair.

This article explains how Arduino works from an electronic design perspective. It also explains the role of every part of…

This article explains how Arduino works from an electronic design perspective. It also explains the role of every part of the Arduino.

Learn how to make your own DIY printed circuit board (PCB) tank, step by step.

Learn how to make your own DIY printed circuit board (PCB) tank, step by step.

Piezoelectric materials change shape when exposed to electric fields. By causing them to change shape at specific times,…

Piezoelectric materials change shape when exposed to electric fields. By causing them to change shape at specific times, we can use them to create sound.

Learn how to use filter specs to help choose the best window parameters for your FIR filter design.

Learn how to use filter specs to help choose the best window parameters for your FIR filter design.

An important application of the diode is one that takes place in the design of the rectifier circuit. Simply put, this…

An important application of the diode is one that takes place in the design of the rectifier circuit. Simply put, this circuit converts alternating current (AC) to direct current (DC). This is an essential circuit in AC-to-DC power-supply design.

Learn about the Karnaugh map (K-map) technique for Boolean algebraic simplification. What advantages and disadvantages do…

Learn about the Karnaugh map (K-map) technique for Boolean algebraic simplification. What advantages and disadvantages do they have?

Harvesting energy from non-conventional sources has received an increased interest as designers look for alternative…

Harvesting energy from non-conventional sources has received an increased interest as designers look for alternative power sources. Even though the power is usually harvested in small amounts, it is adequate for various low-power applications.

Learn how to simulate a traffic light using an Arduino.

Learn how to simulate a traffic light using an Arduino.

In this article, we’ll discuss two benefits of using an active load: improved biasing conditions and…

In this article, we’ll discuss two benefits of using an active load: improved biasing conditions and differential-to-single-ended conversion.

In this project, you'll learn how to build a 4-bit binary counter using a 5x7 LED matrix for data count value…

In this project, you'll learn how to build a 4-bit binary counter using a 5x7 LED matrix for data count value visualization. The project will use a combination of standard electronic and surface mount components.

In this article, we will discuss the fact that choice of different window functions involves a trade-off between the main…

In this article, we will discuss the fact that choice of different window functions involves a trade-off between the main lobe width and the peak sidelobe (PSL). To gain more insight, we will calculate the Fourier transform of a triangular window using the Fourier transform of a rectangular window. The connection between these two windows helps us to better understand the aforementioned trade-off.

Learn how to build a system that can turn DC loads on and off using a mobile application. You'll also learn how to…

Learn how to build a system that can turn DC loads on and off using a mobile application. You'll also learn how to perform this task via immediate actions or via timers set in advance.

Learn about a fairly simple yet highly beneficial modification to the drain-resistor-based version of the MOSFET…

Learn about a fairly simple yet highly beneficial modification to the drain-resistor-based version of the MOSFET differential pair.

Learn how to use an Arduino in combination with an LCD display and a keypad to make a calculator.

Learn how to use an Arduino in combination with an LCD display and a keypad to make a calculator.

Now that we've got the Wandboard up and running, it's time to set up some tools to help us check in on our growing robot's status.

Now that we've got the Wandboard up and running, it's time to set up some tools to help us check in on our growing robot's status.

In this article, we’ll examine the most straightforward version of this foundational integrated-circuit amplifier topology.

In this article, we’ll examine the most straightforward version of this foundational integrated-circuit amplifier topology.

This project details the process by which AC-powered speaker sets can typically be converted to battery power. I'll…

This project details the process by which AC-powered speaker sets can typically be converted to battery power. I'll detail my own projects and provide advice for converting almost any set of speakers.