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Teardown Tuesday: GPS Navigator

Teardown Tuesday: GPS Navigator

Want to see what's inside a GPS unit?


News May 24, 2016 by Alex Udanis
Teardown Tuesday: Smart Remote Control

Teardown Tuesday: Smart Remote Control

What's inside a smart universal remote control?


News May 10, 2016 by Alex Udanis
WISP Wireless Power Platform

WISP Wireless Power Platform

The WISP microcontroller has the potential to revolutionize the way small IoT devices are powered and distributed.


News May 07, 2016 by Michael Greer
Understanding and Using the SAM4S Digital-to-Analog Converter

Understanding and Using the SAM4S Digital-to-Analog Converter

Part Two in this three-article series explores the SAM4S DAC. We’ll look at hardware configuration, electrical characteristics, and the application programming interface.


Projects May 04, 2016 by Robert Keim
Teardown Tuesday: Car Finder & USB Charger

Teardown Tuesday: Car Finder & USB Charger

Ever forget where you parked? Nonda is looking to fix those issues with a product called Zus.


News May 03, 2016 by Alex Udanis
Classification of Signals used in Electrical Engineering

Classification of Signals used in Electrical Engineering

Classifying signals is a way to organize the signals that surround us. It focuses design, testing requirements, measurement tools, and expected results. There are many ways to classify signals!


Low-Pass Filter a PWM Signal into an Analog Voltage

Low-Pass Filter a PWM Signal into an Analog Voltage

In this article we will take a closer look at how to effectively low-pass filter a PWM signal into an analog voltage.


Characteristics of Operational Amplifiers

Characteristics of Operational Amplifiers

One of the reasons the operation amp (op-amp) is so reputable is because of its versatility. In this article, you will see that almost anything can be done using an op-amp. It is also notable that this integrated circuit has many characteristics that approach those that are considered to be ideal.


Build Programmable Time-based Switches Using a Real Time Clock

Build Programmable Time-based Switches Using a Real Time Clock

Use DS3231M RTC alarm functions to make programmable, time-based, switches to power devices on and off at precise times.


C-BISCUIT Power: 5V 3A Buck Regulator for Wandboard

C-BISCUIT Power: 5V 3A Buck Regulator for Wandboard

Design and theory behind the 5V-3A buck regulator based on the LM25575 to be used in the C-BISCUIT robot project.


Projects Feb 26, 2016 by Patrick Lloyd
Average Power Calculations of Periodic Functions

Average Power Calculations of Periodic Functions

This article is following up The Effects of Symmetry on the Fourier Coefficients. Topics will cover finding the average power delivered to a resistor, calculating the RMS value of a periodic function.


How to Eliminate Ground Loops with Signal Isolation

How to Eliminate Ground Loops with Signal Isolation

This project explains how to isolate signals to eliminate ground loops in electronic systems.


Projects Jan 29, 2016 by Orrin Bigelow
A Breakdown of Class D Amplifiers

A Breakdown of Class D Amplifiers

Ever wanted to find out more about Class D amplification? Here's a handy breakdown.


Why the Capacitor in Your Power Supply Filter is Too Big

Why the Capacitor in Your Power Supply Filter is Too Big

The job of the capacitor in the output filter of a DC power supply is to maintain a constant DC value by removing as much power ripple as possible. Because these capacitors have a DC value, they are actually storing a lot of energy that never gets used.


Building Raspberry Pi Controllers: IR Remote Event Counter

Building Raspberry Pi Controllers: IR Remote Event Counter

In part 4 of this Build Raspberry Pi Controllers series, the reader will learn how to build an IR Remote Event counter using littleBits.


Projects Jan 19, 2016 by Don Wilcher
A Guide to the Applications of Hall Effect and Reed Switch Sensors

A Guide to the Applications of Hall Effect and Reed Switch Sensors

In the systems where custom sensors are required, it's imperative that the designer quantifies the environmental, mechanical, electrical, and magnetic parameters of the entire system so that a sensor which meets those operating conditions can be selected.


Build an Arduino Controlled USB Power Supply

Build an Arduino Controlled USB Power Supply

Build an Arduino controlled power supply that automatically adjusts the output to maintain a constant voltage or a constant current.


Sinusoidal Steady-State Power Calculations

Sinusoidal Steady-State Power Calculations

Let's delve into AC power concepts, how to calculate instantaneous power, average power, reactive power, complex power, and the power factor. We'll also talk about the relationship each concept has to one another.


Navigating the Boost Converter’s Vulnerability with Alternative Power Conversion Topologies

Navigating the Boost Converter’s Vulnerability with Alternative Power Conversion Topologies

Here are some great power conversion topologies that can be used as alternatives to the boost converter; they are much less vulnerable to short circuit load conditions.


Understanding Analog-to-Digital Converters: Deciphering Resolution and Sampling Rate

Understanding Analog-to-Digital Converters: Deciphering Resolution and Sampling Rate

Resolution and sampling rate are two important factors to consider when selecting an analog-to-digital converter (ADC). In order to understand these fully, concepts such as quantisation, and the Nyquist Criterion must be understood to a certain degree.