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The Wi-Fi Eye, Part 2: Firmware, Wiring, and Network Connection

The Wi-Fi Eye, Part 2: Firmware, Wiring, and Network Connection

Part two of building a device that can detect Wi-Fi signals and "react" accordingly.


Projects Jul 26, 2017 by Jeremy Lee
“Everything is Better with Bluetooth”:  Add Your Own Custom Bluetooth LE to Your Next Project

“Everything is Better with Bluetooth”:  Add Your Own Custom Bluetooth LE to Your Next Project

Bluetooth low energy (BLE) is designed to intermittently transmit information using a limited amount of power. This article provides the building blocks that allow you to add BLE to your projects for $5 (plus a one-time purchase of a $15 programmer).


Projects Jun 28, 2017 by Mark Hughes
Seeking a Better Switch: A New High-Power FET from ON Semiconductor

Seeking a Better Switch: A New High-Power FET from ON Semiconductor

MOSFETs are certainly not new technology, but ongoing performance improvements make it worth your while to keep an eye on new releases.


High-Frequency FET Control: A New Gate-Driver IC from Diodes Incorporated

High-Frequency FET Control: A New Gate-Driver IC from Diodes Incorporated

Gate-driver ICs such as the DGD0506 provide a convenient and efficient way to control high-current loads.


Separating Signal from Power: New Automotive Inductors from TDK

Separating Signal from Power: New Automotive Inductors from TDK

Inductors such as the ADL3225V devices are useful when you want to use just one conductor to transfer both signal and power.


An Introduction to Audio Electronics: Sound, Microphones, Speakers, and Amplifiers

An Introduction to Audio Electronics: Sound, Microphones, Speakers, and Amplifiers

Learn about the basics of audio electronics, which convert sound signals into electrical signals, process these electrical signals, and convert them back into sound.


Eliminate Brushes, Reduce Noise: A New Motor-Driver IC from ROHM

Eliminate Brushes, Reduce Noise: A New Motor-Driver IC from ROHM

You can improve performance in motor-control applications by using brushless DC motors and handy driver ICs such as the BU69090NUX.


Fast, Ultrafast, Standard, Soft, Schottky: What’s the Right Rectifier for Your Power Circuitry?

Fast, Ultrafast, Standard, Soft, Schottky: What’s the Right Rectifier for Your Power Circuitry?

This article will help you understand rectifiers: how their static behavior differs from their dynamic behavior, and how “speed” is used as a defining characteristic.


Convenient, High-Efficiency Power: A New Series of DC/DC Converter Modules from Murata

Convenient, High-Efficiency Power: A New Series of DC/DC Converter Modules from Murata

You can’t beat the efficiency of switch-mode power supplies, and you can avoid the design-complexity issue by using DC/DC modules such as those in the OKDx-T/90 series.


Determining the Equivalent Series Resistance (ESR) of Capacitors

Determining the Equivalent Series Resistance (ESR) of Capacitors

Learn more about the importance of capacitor ESR, how to measure it, and what factors can affect your measurements.


Understanding Total Harmonic Distortion (THD) in Power Systems

Understanding Total Harmonic Distortion (THD) in Power Systems

This article describes the cause and effect of total harmonic distortion (THD) in power systems. Some means of improving THD are also discussed.


FET vs. BJT vs. IGBT: What’s the Right Choice for Your Power Stage Design?

FET vs. BJT vs. IGBT: What’s the Right Choice for Your Power Stage Design?

This article will help the reader understand the different types of power semiconductors: how they work, their key parameters, and trade-offs.


Circuits Need Protection, Too: An IC Solution for Overvoltage, Undervoltage, and Reverse Polarity

Circuits Need Protection, Too: An IC Solution for Overvoltage, Undervoltage, and Reverse Polarity

A new power-supply IC from Linear Tech, the LTC4368, is a highly integrated device that can help you protect your circuits from problematic voltage and current conditions.


Bridging the Gap Between Solid-State and Mechanical: The MEMS Switch

Bridging the Gap Between Solid-State and Mechanical: The MEMS Switch

The ADGM1004 MEMS switch from Analog Devices is a high-performance solution for both low-frequency and high-frequency applications.


Interpreting Current-Voltage Curves of Different Materials

Interpreting Current-Voltage Curves of Different Materials

This article discusses the ideas involved in measuring and interpreting the current-voltage curves of solar cells, batteries, and unknown materials.


Introduction to Low-Power Embedded Design

Introduction to Low-Power Embedded Design

Low power consumption has become an important design goal in many electronic systems. This article introduces essential concepts and techniques.


How Sonic Tractor Beams Work

How Sonic Tractor Beams Work

This practical tractor beam uses ultrasonic waves to levitate small spheres at short distances.


LVDS: High-Speed, Low-Power, Robust Data Transfer

LVDS: High-Speed, Low-Power, Robust Data Transfer

This technical brief discusses characteristics and advantages of low-voltage differential signaling (LVDS).


Understanding Current-Voltage Curves

Understanding Current-Voltage Curves

This article discusses I-V curves for passive components, voltage sources, and current sources.


How the Boost PFC Converter Circuit Improves Power Quality

How the Boost PFC Converter Circuit Improves Power Quality

A boost power factor correction (PFC) converter can significantly improve both the power factor and the harmonic distortion.