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Build Your Own RFID Technology Using an Arduino MEGA

Build Your Own RFID Technology Using an Arduino MEGA

In this article, we are going to learn some basics about RFID technology and use an Arduino MEGA to a play around with a popular RFID module, the ID12LA.


Projects Jul 20, 2016 by Joseph Corleto
How Sensor Fusion Works

How Sensor Fusion Works

Sensor fusion is the art of combining multiple physical sensors to produce accurate "ground truth", even though each sensor might be unreliable on its own.


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 How and Why of Energy Harvesting for Low-Power Applications

The How and Why of Energy Harvesting for Low-Power Applications

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.


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
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.


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.


Characteristics of Junction Diodes

Characteristics of Junction Diodes

In this article, we will look at the characteristics of junction diodes and learn how to analyze circuits containing diodes that operate in the forward, reverse, and breakdown biases.


Building Raspberry Pi Controllers: Interactive Graphics Controllers

Building Raspberry Pi Controllers: Interactive Graphics Controllers

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.


Projects May 18, 2016 by Don Wilcher
Turning on a Light with Ultrasonic Motion Detection

Turning on a Light with Ultrasonic Motion Detection

This project will show you how to connect an ultrasonic sensor and an Arduino to turn on a light when motion is sensed.


Create an Object Tracking System: Integrating Servo Control with Object Detect

Create an Object Tracking System: Integrating Servo Control with Object Detect

This project covers integrating servo control and object detection.


Projects May 10, 2016 by Michael Stock
Build a Desktop Industrial Automation Trainer

Build a Desktop Industrial Automation Trainer

In this project, the reader will learn how to build and program a desktop industrial automation trainer for experimentation in robotics, motor, and process control system concepts on their workbench.


Projects Apr 21, 2016 by Don Wilcher
The Inverting Configuration of an Amplifier

The Inverting Configuration of an Amplifier

Mentioned in the previous article, an operational amplifier is usually connected to components in a feedback circuit. In this article, we will discuss one of two amp configurations that are most widely used.


Build an Automatic Computer Display Rotator With an Arduino

Build an Automatic Computer Display Rotator With an Arduino

Learn how to build a device which senses when your computer monitor is physically rotated, and automatically tells your computer to rotate the display accordingly.


Projects Apr 12, 2016 by Matthew Davis
Embedded PID Temperature Control, Part 6: Ziegler–Nichols Tuning

Embedded PID Temperature Control, Part 6: Ziegler–Nichols Tuning

In this article, we will use a simple, proven tuning procedure to find effective values for proportional, integral, and derivative gain.


Projects Mar 07, 2016 by Robert Keim
Program a PIC Microcontroller as an I2C Slave Device for Custom Sensor and I/O Interfacing

Program a PIC Microcontroller as an I2C Slave Device for Custom Sensor and I/O Interfacing

No I2C interface with that sensor? No problem. Program a PIC chip as an I2C slave device for custom sensor and I/O interfacing. Here, we use three DHT22 sensors on a single I2C interface.


Embedded PID Temperature Control, Part 5: Adjusting Gains

Embedded PID Temperature Control, Part 5: Adjusting Gains

We will explore how P, I, and D gain influences system performance, and in the process we will find a gain configuration that works well for our temperature controller.


Projects Feb 29, 2016 by Robert Keim
Embedded PID Temperature Control, Part 4: The Scilab GUI

Embedded PID Temperature Control, Part 4: The Scilab GUI

With USB communications and a Scilab graphical user interface, we can really see what the PID controller is doing.


Projects Feb 19, 2016 by Robert Keim
Embedded PID Temperature Control, Part 3: Implementation and Visualization

Embedded PID Temperature Control, Part 3: Implementation and Visualization

We will implement a basic PID (proportional–integral–derivative) controller in firmware and observe the results using an oscope and LEDs.


Projects Feb 15, 2016 by Robert Keim
Create an Object Tracking System Part 2: Controlling a Servo

Create an Object Tracking System Part 2: Controlling a Servo

This project explains the basic operation of servo motors and how to interface with them using an Arduino Uno.


Projects Feb 11, 2016 by Michael Stock