Latest Embedded Technical Articles

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 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.

Learn how to use a Raspberry Pi and an Arduino to develop a system for monitoring and controlling your home.

Learn how to use a Raspberry Pi and an Arduino to develop a system for monitoring and controlling your home.

Continuing the C-BISCUIT series, this article outlines how to populate and test the surface mount PCBs designed in a…

Continuing the C-BISCUIT series, this article outlines how to populate and test the surface mount PCBs designed in a previous article using a hot air rework station and other various electronics tools.

This article presents some basic cap-sense circuit configurations and discusses how to deal with low- and high-frequency noise.

This article presents some basic cap-sense circuit configurations and discusses how to deal with low- and high-frequency noise.

File systems can be great for handling data and organizing memory, but most file systems require large amounts of memory.…

File systems can be great for handling data and organizing memory, but most file systems require large amounts of memory. This is where MicroFAT comes in!

Combine the Si4844-A10 analog-tuned radio receiver with an Arduino to make a full-featured multiband radio.

Combine the Si4844-A10 analog-tuned radio receiver with an Arduino to make a full-featured multiband radio.

UART is a great transmission protocol for both hobby and professional projects but, in time-critical systems, UART can be tricky.

UART is a great transmission protocol for both hobby and professional projects but, in time-critical systems, UART can be tricky.

The PICAXE 40X2 features 32 I/O ports and speeds up to 64MHz; a development platform simplifies project design using this…

The PICAXE 40X2 features 32 I/O ports and speeds up to 64MHz; a development platform simplifies project design using this workhorse.

In this article, we will take a detailed (but not too detailed) look at the electrical principles that allow us to detect…

In this article, we will take a detailed (but not too detailed) look at the electrical principles that allow us to detect the presence of a human finger using little more than a capacitor.

A smoother transition band and ripples in the passband are the most important differences between the ideal filters and…

A smoother transition band and ripples in the passband are the most important differences between the ideal filters and those designed by window method. This article tries to provide a deeper insight into how truncation leads to these features.

Learn how to make flashing your ARM-based MCU easy by using OpenOCD debugger with an FT2232H adapter.

Learn how to make flashing your ARM-based MCU easy by using OpenOCD debugger with an FT2232H adapter.

In part 7 of the "Building Raspberry Pi Controllers" series, readers will learn how to make an interactive graphics…

In part 7 of the "Building Raspberry Pi Controllers" series, readers will learn how to make an interactive graphics bouncing ball using a Raspberry Pi and physical computing techniques.

Internal or external? Quartz or ceramic? Crystal oscillator or silicon oscillator? So many clocking options . . . which…

Internal or external? Quartz or ceramic? Crystal oscillator or silicon oscillator? So many clocking options . . . which one is right for your design?

In this article, we'll review the basic concepts in digital filter design. We'll also briefly discuss the advantages of…

In this article, we'll review the basic concepts in digital filter design. We'll also briefly discuss the advantages of FIR filters over IIR designs, e.g. stability and linear-phase response. Finally, we'll go over an introduction to designing FIR filters via the window method.

Using Finite State Machines (FSM) is a common industrial practice in coding but their use extends beyond everyday…

Using Finite State Machines (FSM) is a common industrial practice in coding but their use extends beyond everyday software. They can easily be used in projects, help prevent bugs, stop infinite loops hogging the processor, and ease debugging.