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Understanding and Implementing the HC-12 Wireless Transceiver Module

Understanding and Implementing the HC-12 Wireless Transceiver Module

The HC-12 is a 100mW multi-channel wireless transceiver you can use in your projects to transmit and receive serial information.


Projects Nov 02, 2016 by Mark Hughes
How to Design a Bluetooth Low Energy Circuit with Sensor Technology

How to Design a Bluetooth Low Energy Circuit with Sensor Technology

Tutorial on designing a Bluetooth Low Energy (BLE) circuit with the ability to measure 9-axis motion, humidity, and temperature.


Arduino Infrared (IR) Control… The Universal Remote Control

Arduino Infrared (IR) Control… The Universal Remote Control

The Arduino Universal Remote Control is the TV remote your dad wishes he had!


Projects Sep 09, 2016 by Ryan Jones
Build a Wireless “Tipping Bucket” Rain Gauge, Part 3—Receiver, PICAXE, and LCD

Build a Wireless “Tipping Bucket” Rain Gauge, Part 3—Receiver, PICAXE, and LCD

Here's a rain gauge that empties itself and that you can read from your easy chair. Best of all, you can build it, yourself.


Understanding Quadrature Phase Shift Keying (QPSK) Modulation

Understanding Quadrature Phase Shift Keying (QPSK) Modulation

This technical brief covers the basic characteristics of a digital modulation scheme known as quadrature phase shift keying.


Create a Two-Channel Remote Control with the nRF24L01+

Create a Two-Channel Remote Control with the nRF24L01+

This article will give you the building blocks needed to create your own two-channel wireless remote controller.


Projects Jul 27, 2016 by Mark Hughes
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
Building an RC Robot Using a Wheelchair Base

Building an RC Robot Using a Wheelchair Base

This two-part project will begin by showing you how to create a robot base from a used electric wheelchair. Part 1 creates a simple robot platform for use with remote control. Part 2 will develop a platform for use with and Arduino.


Projects Jul 06, 2016 by Mark Hughes
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 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.


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 Flash the SIM900A Module

How to Flash the SIM900A Module

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


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.


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.


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.