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Building an RC Robot Using a Wheelchair Base—Part 2

Building an RC Robot Using a Wheelchair Base—Part 2

The Sabertooth 2x32 motor controller can be used to create a robust drive platform for your next robotic endeavour. This article uses an Arduino Uno to communicate with the Sabertooth 2x32 controller.


Projects Jul 13, 2016 by Mark Hughes
The Quark D2000 Development Board: Moving Beyond “Hello World”

The Quark D2000 Development Board: Moving Beyond “Hello World”

Start to get acquainted with the new D2000 microcontroller development board by exploring the GPIO and PWM.


Driving LED Arrays with an Arduino

Driving LED Arrays with an Arduino

All you need to know about LED arrays. If you want to learn about them, drive one using an Arduino, or build them, this is the place to start.


Understanding Arduino UNO Hardware Design

Understanding Arduino UNO Hardware Design

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


From Filter Specs to Window Parameters in FIR Filter Design

From Filter Specs to Window Parameters in FIR Filter Design

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


The Karnaugh Map Boolean Algebraic Simplification Technique

The Karnaugh Map Boolean Algebraic Simplification Technique

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


Timing Light Sequences: Build a Traffic Light Controller with an Arduino MEGA

Timing Light Sequences: Build a Traffic Light Controller with an Arduino MEGA

Learn how to simulate a traffic light using an Arduino.


Projects Jun 22, 2016 by Joseph Corleto
Build a 4-Bit Binary Counter with 5x7 LED Matrix

Build a 4-Bit Binary Counter with 5x7 LED Matrix

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.


Projects Jun 20, 2016 by Don Wilcher
The Bartlett Versus the Rectangular Window

The Bartlett Versus the Rectangular Window

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.


How to Build a Control Circuit with Adjustable Working Time via Wi-Fi

How to Build a Control Circuit with Adjustable Working Time via Wi-Fi

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.


Projects Jun 15, 2016 by Yahya Tawil
How to Build a Simple Arduino-Based Calculator

How to Build a Simple Arduino-Based Calculator

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


C-BISCUIT: Monitoring Your Robot’s Health

C-BISCUIT: Monitoring Your Robot’s Health

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.


Projects Jun 10, 2016 by Trevor Gamblin
House-Monitoring Framework with Arduino and Raspberry Pi: The Paranoid App

House-Monitoring Framework with Arduino and Raspberry Pi: The Paranoid App

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


Projects Jun 03, 2016 by Cezar Chirila
C-BISCUIT Power: Assembly and Testing of Regulator and Crowbar Circuits

C-BISCUIT Power: Assembly and Testing of Regulator and Crowbar Circuits

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.


Projects May 31, 2016 by Patrick Lloyd
Circuits and Techniques for Implementing Capacitive Touch Sensing

Circuits and Techniques for Implementing Capacitive Touch Sensing

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


MicroFAT: A File System for Microcontrollers

MicroFAT: A File System for Microcontrollers

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!


How to Build an Arduino-Controlled AM/FM/SW Radio

How to Build an Arduino-Controlled AM/FM/SW Radio

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


UART Double Buffering Technique: Interrupt-Friendly

UART Double Buffering Technique: Interrupt-Friendly

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


Build a Development Platform for a PICAXE 40X2

Build a Development Platform for a PICAXE 40X2

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


Introduction to Capacitive Touch Sensing

Introduction to Capacitive Touch Sensing

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.