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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
MOSFET Channel-Length Modulation

MOSFET Channel-Length Modulation

This technical brief describes channel-length modulation and how it affects MOSFET current–voltage characteristics.


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
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.


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.


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.


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
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 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.


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.


Introduction to the RFM69HW Transceiver

Introduction to the RFM69HW Transceiver

This handy introduction teaches you all about the RFM69HW transceiver module using two circuits running a wireless version of the "blinky" code.


Make a Wireless Thermometer with Arduino

Make a Wireless Thermometer with Arduino

Learn how to use a 433MHz RF module with an ATMega 328P-PU. In this article, we'll make a circuit with a DHT11 sensor and a RF transmitter. We'll also make a receiving circuit with a 433MHz RF receiver and an LCD display.


Update the Firmware in Your ESP8266 Wi-Fi Module

Update the Firmware in Your ESP8266 Wi-Fi Module

Updating the firmware in an ESP8266 Wi-Fi module can be frustrating! Here's a procedure to reduce the pain.


Build a Laser Communication System

Build a Laser Communication System

Use a laser and a photo resistor to build a laser based point-to-point communication system. The best part? It's under $10.


Projects Oct 22, 2015 by Jacob Smith