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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!


C-BISCUIT: The Brains of the Operation

C-BISCUIT: The Brains of the Operation

In this article, we teach C-BISCUIT how to do important life things, such as booting into our OS of choice, and connecting to the Wi-Fi it'll come to know as the gateway to knowledge.


Projects Apr 26, 2016 by Trevor Gamblin
Pulse-Width Modulation with the SAM4S Xplained Pro

Pulse-Width Modulation with the SAM4S Xplained Pro

This article covers everything you need to know to generate pulse-width-modulated signals with Atmel’s SAM4S Xplained Pro development board.


Projects Apr 14, 2016 by Robert Keim
Turn Your PWM into a DAC

Turn Your PWM into a DAC

If your microcontroller doesn’t have a digital-to-analog converter, you can make a passable replacement with nothing more than a pulse-width-modulated signal and a low-pass filter.


Linear Amplitude Modulation Applications

Linear Amplitude Modulation Applications

In this article, we'll delve into amplitude modulation and what it's used for. Also, we will differentiate between communication methods that do and do not use modulation.


How to: Send an SMS with PIC16F628A and SIM900A

How to: Send an SMS with PIC16F628A and SIM900A

In this article I'll show you one way of sending an SMS using a PIC 16F628A and a SIMCOM SIM900A module.


How to Flash the SIM900A Module

How to Flash the SIM900A Module

SIMCOM's SIM 900A in Europe? Read on to learn how.


An Overview of the Analysis and Transmission of Aperiodic Signals

An Overview of the Analysis and Transmission of Aperiodic Signals

A signal that does not repeat itself after a specific interval of time is called an aperiodic signal. By applying a limiting process, the signal can be expressed as a continuous sum (or integral) of everlasting exponentials.


Introducing the Particle Photon

Introducing the Particle Photon

The Particle Photon is a powerful little board with the ability to easily connect objects to the internet. This series of articles will be enough to get you up and running with the Particle Photon.


Projects Jan 07, 2016 by Leanna Pancoast
All About Omnidirectional Wi-Fi Antennas

All About Omnidirectional Wi-Fi Antennas

For a local area network (LAN) to provide good coverage, improved antennas are often a better (and less expensive) option than more access points. Directional antennas are sometimes the better choice, but often omnidirectional gain antennas will work well.


Introduction to the I2C Bus

Introduction to the I2C Bus

This article covers the essential characteristics and prominent advantages of the Inter–Integrated Circuit (aka I2C) serial-communications protocol.


Build a PICAXE ESP-01 Wi-Fi Communicator

Build a PICAXE ESP-01 Wi-Fi Communicator

A PCB for a Wi-Fi communicator using a PICAXE 08M2 and an ESP-01 module driven by interactive code makes a handy setup for data collection and IoT reporting.


Make a Wireless Thermometer with PICAXE

Make a Wireless Thermometer with PICAXE

Got some time and need a wireless thermometer? In this article I'll show you how to make such a thing with a few PICAXEs.


Make a GPS Clock With Arduino

Make a GPS Clock With Arduino

Do you need GPS time on your desk? This article will show you how to use a GPS module to get time, date and your location displayed on an LCD with an Arduino.


An Intro to Adaptive Echo Cancellers

An Intro to Adaptive Echo Cancellers

A introduction to adaptive echo cancellers using Matlab simulation.


The Fundamentals of Wi-Fi Antennas

The Fundamentals of Wi-Fi Antennas

Amateur radio operators ("hams") have long said, "If you want a bigger signal, put up more metal and put it up higher." Antennas for Wi-Fi are no exception.


Make a Wireless Thermometer with a PIC Microcontroller

Make a Wireless Thermometer with a PIC Microcontroller

Getting more familiar with a PIC MCU is a matter of working more often with it. Learn how to make a wireless thermometer with a PIC microcontroller.


Transmission Lines: From Lumped Element to Distributed Element Regimes

Transmission Lines: From Lumped Element to Distributed Element Regimes

Delving further into the transmission line concept, the boundary between treating the line as a single lumped circuit element and using the distributed circuit parameters is investigated with a simple analysis in python. Circuit parameters for multiple waveguide geometries are shown.


Control an Arduino with Bluetooth

Control an Arduino with Bluetooth

This article will show you how to set up two way communication between an Arduino and your Android Smartphone using Bluetooth.


Everything You Need to Know About Direct Digital Synthesis

Everything You Need to Know About Direct Digital Synthesis

Direct Digital Synthesis is used to generate precise analog waveforms that can quickly change frequencies. It's used in test equipment, spread spectrum techniques and to enable frequency sweeps.