Design a wideband analog multimeter to measure AC voltages and currents from 20 Hz to 1 MHz with a selectable sensitivity from 1 mV to 100 V, while the ammeter…
Design a wideband analog multimeter to measure AC voltages and currents from 20 Hz to 1 MHz with a selectable sensitivity from 1 mV to 100 V, while the ammeter has a selectable current sensitivity of 10 mA to 10 A.
Learn how to build a setup that will help you predict a battery's performance as it ages using a Trinket M0 and software…
Learn how to build a setup that will help you predict a battery's performance as it ages using a Trinket M0 and software algorithms.
Learn how to build your own Class D power amplifier—one of the most efficient ways to listen to music.
Learn how to build your own Class D power amplifier—one of the most efficient ways to listen to music.
This project demonstrates and discusses the performance and functionality of an inductorless ±5 V power-supply circuit.
This project demonstrates and discusses the performance and functionality of an inductorless ±5 V power-supply circuit.
Everyone needs a negative voltage rail eventually, but most only have a single rail supply. This project will show you…
Everyone needs a negative voltage rail eventually, but most only have a single rail supply. This project will show you how to build a negative voltage generator that runs off a single rail supply!
Tired of using your PC or mobile phone as a signal generator? It’s time to upgrade to a standalone one by making it yourself.
Tired of using your PC or mobile phone as a signal generator? It’s time to upgrade to a standalone one by making it yourself.
In this project, we're making a weighing scale using a C8051 microcontroller development kit, a load cell, and the…
In this project, we're making a weighing scale using a C8051 microcontroller development kit, a load cell, and the Simplicity Studio IDE. The measured weight will be displayed on an LCD screen.
In part 4 of our Wi-Fi Eye project, we'll deal with our power supply
In part 4 of our Wi-Fi Eye project, we'll deal with our power supply
Part two of building a device that can detect Wi-Fi signals and "react" accordingly.
Part two of building a device that can detect Wi-Fi signals and "react" accordingly.
Learn how to make your own Wi-Fi-enabled "ESP Alarm."
Learn how to make your own Wi-Fi-enabled "ESP Alarm."
Tracking an infrared light source is not as difficult as you might think; a 14-pin PICAXE, a stepper motor with a driver…
Tracking an infrared light source is not as difficult as you might think; a 14-pin PICAXE, a stepper motor with a driver IC, three phototransistors, and a few other components will do the trick.
Need to ventilate a room? This article will show you how I made a relay-operated, GPS-timed fan to vent out the moist air…
Need to ventilate a room? This article will show you how I made a relay-operated, GPS-timed fan to vent out the moist air in my boat's cabin. It is controlled with a PIC16F628A and has an LCD.
Create a tracking device with an HC-12 transceiver, a GPS module, an Arduino, and Google Maps.
Create a tracking device with an HC-12 transceiver, a GPS module, an Arduino, and Google Maps.
With the help of some solenoids, the Dancing Ghostbusters Toaster really topped off my Halloween costume this year!
With the help of some solenoids, the Dancing Ghostbusters Toaster really topped off my Halloween costume this year!
In part 3, we compile the firmware and build the controller at the heart of the Saber, then do initial testing and diagnostics.
In part 3, we compile the firmware and build the controller at the heart of the Saber, then do initial testing and diagnostics.
We’ll continue our discussion of the C-BISCUIT demo bot by looking at portions of the RCB schematic that weren’t…
We’ll continue our discussion of the C-BISCUIT demo bot by looking at portions of the RCB schematic that weren’t covered in the previous article.
Learn how to build a system that can turn DC loads on and off using a mobile application. You'll also learn how to…
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.
This project details the process by which AC-powered speaker sets can typically be converted to battery power. I'll…
This project details the process by which AC-powered speaker sets can typically be converted to battery power. I'll detail my own projects and provide advice for converting almost any set of speakers.
Continuing the C-BISCUIT series, this article outlines how to populate and test the surface mount PCBs designed in a…
Continuing the C-BISCUIT series, this article outlines how to populate and test the surface mount PCBs designed in a previous article using a hot air rework station and other various electronics tools.
Design and theory behind the 5V-3A buck regulator based on the LM25575 to be used in the C-BISCUIT robot project.
Design and theory behind the 5V-3A buck regulator based on the LM25575 to be used in the C-BISCUIT robot project.
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