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…
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.
In the last installment, we built the hardware to control an AC waveform with a TRIAC as the first step in a DIY solder…
In the last installment, we built the hardware to control an AC waveform with a TRIAC as the first step in a DIY solder reflow oven. This tutorial continues the project by showing you how to set up the low-level hardware to measure temperature, read the zero-cross detector, drive the TRIAC, and print to the serial terminal using a USART.
An inside look at how the 741 operational amplifier operates with LTspice simulation. We'll go over internal structure…
An inside look at how the 741 operational amplifier operates with LTspice simulation. We'll go over internal structure and differential amplifiers and continue with everything you've ever needed to know about this operational amplifier.
This article discusses power conversion topologies that can be used as alternatives to the boost converter that are less…
This article discusses power conversion topologies that can be used as alternatives to the boost converter that are less vulnerable to short circuit load conditions.
Over the past two decades, communication devices and the age of computers have transformed the way we view and study…
Over the past two decades, communication devices and the age of computers have transformed the way we view and study sports, and it's not stopping any time soon.
Connecting a PICAXE to the IoT through an ESP8266 module is easy once you know the process. Here are the details you need!
Connecting a PICAXE to the IoT through an ESP8266 module is easy once you know the process. Here are the details you need!
Each year over a million people attend Maker Faires around the world, but few people get a chance to present at one. I'm…
Each year over a million people attend Maker Faires around the world, but few people get a chance to present at one. I'm going to share a little about my experience presenting at my local Barnes and Noble Mini Maker Faire so makers everywhere can learn how to be better presenters.
Delve into phasor concepts and transforming a circuit with circuit analysis techniques to solve a given circuit in the…
Delve into phasor concepts and transforming a circuit with circuit analysis techniques to solve a given circuit in the frequency domain.
Nothing on TV tonight? Control an Arduino with any infrared remote control, including the one you use to command your television.
Nothing on TV tonight? Control an Arduino with any infrared remote control, including the one you use to command your television.
Use negative feedback to increase your amplifier’s signal-to-noise ratio, reduce its nonlinear distortion, and improve…
Use negative feedback to increase your amplifier’s signal-to-noise ratio, reduce its nonlinear distortion, and improve its input- and output-impedance characteristics.
This article contains practical PCB layout tips that can help your PCB projects work correctly and reliably.
This article contains practical PCB layout tips that can help your PCB projects work correctly and reliably.
An overview of how the concepts of electron flow and the role of individual circuit components can be related to the flow…
An overview of how the concepts of electron flow and the role of individual circuit components can be related to the flow of fluid in pipe networks. The analogy between hydraulics and electricity is a useful tool for teaching and for those who are struggling to understand how circuits work.
All About Circuits took Ambiq up on its invitation to a sneak preview of its Apollo microcontroller running under the new…
All About Circuits took Ambiq up on its invitation to a sneak preview of its Apollo microcontroller running under the new ULPBench benchmark. The results were surprising.
Explanation of what a transmission line is, and the conditions under which it exists. Uses lumped element model to derive…
Explanation of what a transmission line is, and the conditions under which it exists. Uses lumped element model to derive differential equations and manipulates the equations to get telegraph equations. Uses solutions to telegraph equations to get characteristic impedance and propagation constant and looks at matched and unmatched load cases.
Having introduced the general negative feedback structure, we will now demonstrate that negative feedback has a…
Having introduced the general negative feedback structure, we will now demonstrate that negative feedback has a beneficial effect on two important characteristics of amplifier circuits.
Shenzhen is half a world away from most designers, which means that there are some very real logistical barriers to…
Shenzhen is half a world away from most designers, which means that there are some very real logistical barriers to bringing products to market. MIT's new Innovation Node could help bridge the gap between design and production.
Part four of a series of articles on building a robot that can follow lines or walls and avoid obstacles!
Part four of a series of articles on building a robot that can follow lines or walls and avoid obstacles!
A thorough explanation of OLED technology and its applications. Like an LED, an OLED is a solid semiconductor device that…
A thorough explanation of OLED technology and its applications. Like an LED, an OLED is a solid semiconductor device that is 100 to 500 nanometers in length or 200 times smaller than a human hair!
Learn how to put together your own toaster oven controller with a handful of inexpensive, through-hole parts. The…
Learn how to put together your own toaster oven controller with a handful of inexpensive, through-hole parts. The emphasis is on safety, low price, and minimal modification of the toaster oven.
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