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

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

After winning over China, both Google and Apple may have assumed they'd have the same success in India. But this year…

After winning over China, both Google and Apple may have assumed they'd have the same success in India. But this year proved the companies have much to learn.

Let's delve into AC power concepts, how to calculate instantaneous power, average power, reactive power, complex power,…

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.

Programmable thermostats can save a lot of energy and money. But you don't have to buy one- you can convert an old…

Programmable thermostats can save a lot of energy and money. But you don't have to buy one- you can convert an old mechanical thermostat into a programmable thermostat using an Arduino and a servo.

It's a scary world. Here's a roundup of the wireless payment contenders and the technology they're utilizing to ensure…

It's a scary world. Here's a roundup of the wireless payment contenders and the technology they're utilizing to ensure the future of payments is safe and easy.

The buck converter is a ubiquitous DC-DC converter that efficiently converts a high voltage to a low voltage efficiently.…

The buck converter is a ubiquitous DC-DC converter that efficiently converts a high voltage to a low voltage efficiently. Efficient power conversion extends battery life, reduces heat, and allows for smaller gadgets to be built. The buck converter can be used in lots of cool applications.

Here are some great power conversion topologies that can be used as alternatives to the boost converter; they are much…

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.

How to use frequency-domain simulations to analyze loop gain and evaluate the stability of your amplifier circuit. We…

How to use frequency-domain simulations to analyze loop gain and evaluate the stability of your amplifier circuit. We need a way to determine whether a circuit is sufficiently stable—in other words, stable enough to ensure that the circuit will perform properly despite part-to-part variations and environmental or operational conditions that affect the characteristics of the open-loop gain or the feedback network. There is where gain margin and phase margin come into play.

How an op amp works with LTspice simulation. We left off last time finishing up how the input stage of an op-amp works.…

How an op amp works with LTspice simulation. We left off last time finishing up how the input stage of an op-amp works. The next important stage is made up by transistors Q3, Q4, Q5, Q6, and Q7.

This article discusses style mistakes in PCB layout that can make assembly and debugging PCBs difficult. This is vital…

This article discusses style mistakes in PCB layout that can make assembly and debugging PCBs difficult. This is vital for designers!

Resolution and sampling rate are two important factors to consider when selecting an analog-to-digital converter (ADC).…

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.

The boost converter is a DC-DC converter used to created an output voltage that is higher than the input voltage. Boost…

The boost converter is a DC-DC converter used to created an output voltage that is higher than the input voltage. Boost converters are also used to drive LEDs placed in series in products like LED flashlights. The boost converter suffers from vulnerability to a short circuit load. Learn how to protect them from shorts!

Direct Digital Synthesis is used to generate precise analog waveforms that can quickly change frequencies. It's used in…

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.

NXP demonstrated its Thread Platform at ARMTechCon last week. Based on the JN5179 wireless MCU, with Secure Element, NFC,…

NXP demonstrated its Thread Platform at ARMTechCon last week. Based on the JN5179 wireless MCU, with Secure Element, NFC, Thread encryption, its own dc/dc converter and featuring ARM's mbed OS, the Platform makes secure home automation application design a whole lot easier.

Learn how to build a variety of electronic controllers using the Raspberry Pi. In part one, you will learn how to wire a…

Learn how to build a variety of electronic controllers using the Raspberry Pi. In part one, you will learn how to wire a basic pushbutton switch and read the status of its electrical contacts using the Python programming language.

Why are negative-feedback amplifiers susceptible to oscillation? What is the fundamental criterion for stability? Let’s…

Why are negative-feedback amplifiers susceptible to oscillation? What is the fundamental criterion for stability? Let’s find out.

Use the Analog to Digital Converter (ADC) feature of LaunchPad to build a laser tripwire alarm. This is a great way to…

Use the Analog to Digital Converter (ADC) feature of LaunchPad to build a laser tripwire alarm. This is a great way to familiarize yourself with LaunchPad while simultaneously making something cool.

Part five of a series of articles on building a robot that can follow lines or walls and avoid obstacles!

Part five of a series of articles on building a robot that can follow lines or walls and avoid obstacles!

Programmable thermostats can save a lot of energy and money. But you don't have to buy one. You can convert an old…

Programmable thermostats can save a lot of energy and money. But you don't have to buy one. You can convert an old mechanical thermostat into a programmable thermostat using an Arduino and a servo.