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A Cortex-M Microcontroller-Enabled Electronic Timer: A Radio Shack Remix

A Cortex-M Microcontroller-Enabled Electronic Timer: A Radio Shack Remix

In this Radio Shack Classic Circuits Remix, we add modern microcontroller functionality to the vintage Electronic Timer project for the Science Fair 65-in-1 kit.


Projects Sep 15, 2024 by Don Wilcher
Controlling a Stepper Motor with an SIRC Transmitter and Receiver

Controlling a Stepper Motor with an SIRC Transmitter and Receiver

Detecting, decoding, and displaying IR (Infrared) signal data is interesting, but using those signals to control stuff is more interesting . . . and sometimes useful. Read on to learn how.


The IoT Beaglebone Beagle Treat-Feeder

The IoT Beaglebone Beagle Treat-Feeder

The Beaglebone Treat-Feeder is the prototype for a great pet-feeding device! Keep track of your pet's diet while you stuff your face!


Projects Jan 30, 2017 by Ryan Jones
DIY Arduino-Based Sous-Vide Machine

DIY Arduino-Based Sous-Vide Machine

Learn how to build your own sous-vide machine. Say goodbye to overcooked steak!


Projects Dec 13, 2016 by Cezar Chirila
The Crop Duster Buster! A Launchpad-Controlled Clapper

The Crop Duster Buster! A Launchpad-Controlled Clapper

The Crop Duster Buster is sure to keep your pet's toot smell away!


Projects Sep 26, 2016 by Ryan Jones
The Quark D2000 Development Board: Moving Beyond “Hello World”

The Quark D2000 Development Board: Moving Beyond “Hello World”

Start to get acquainted with the new D2000 microcontroller development board by exploring the GPIO and PWM.


AC/DC: Battery Power Conversion for AC Speakers (Part 1)

AC/DC: Battery Power Conversion for AC Speakers (Part 1)

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.


Projects Jun 08, 2016 by Seth Schaffer
Build a Desktop Industrial Automation Trainer

Build a Desktop Industrial Automation Trainer

In this project, the reader will learn how to build and program a desktop industrial automation trainer for experimentation in robotics, motor, and process control system concepts on their workbench.


Projects Apr 21, 2016 by Don Wilcher
Build Programmable Time-based Switches Using a Real Time Clock

Build Programmable Time-based Switches Using a Real Time Clock

Use DS3231M RTC alarm functions to make programmable, time-based, switches to power devices on and off at precise times.


Controlling a Toaster Oven with a PICAXE - Part 2

Controlling a Toaster Oven with a PICAXE - Part 2

Soldering surface mount components by hand can be done, but reflow soldering in an oven is much quicker and produces more consistent results. Building a microprocessor controlled reflow oven is well within the abilities and budget of many hobbyists.


Build an Object Detection DC Motor Controller

Build an Object Detection DC Motor Controller

In this continuing series of Building Raspberry Pi Controllers, you'll learn how to build a object detection control circuit for operating a small DC motor using a photocell.


Projects Dec 27, 2015 by Don Wilcher
Make Your Switch Sound Activated

Make Your Switch Sound Activated

In this article, we'll build a sound-activated switch that can be opened and closed with a double clap.


Projects Dec 21, 2015 by Tim Youngblood
Download Your First Program Using ARM mbed and KEIL MDK V5

Download Your First Program Using ARM mbed and KEIL MDK V5

The FRDM-K64F is a development platform which utilises the MK64FN1M0VLL12 microcontroller. This tutorial includes how to download a simple blinky example onto the FRDM-K64F using the ARM mbed online IDE and KEIL MDK. Details of the GPIO module configuration are included.


Projects Dec 17, 2015 by Elliott Smith
Build an Arduino Controlled USB Power Supply

Build an Arduino Controlled USB Power Supply

Build an Arduino controlled power supply that automatically adjusts the output to maintain a constant voltage or a constant current.


Build a Raspberry Pi Pushbutton Switch

Build a Raspberry Pi Pushbutton Switch

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.


Projects Nov 19, 2015 by Don Wilcher
Control an Arduino With a TV Remote

Control an Arduino With a TV Remote

Nothing on TV tonight? Control an Arduino with any infrared remote control, including the one you use to command your television.


Control Your AC Mains with a Microcontroller

Control Your AC Mains with a Microcontroller

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.


Projects Nov 09, 2015 by Patrick Lloyd
How to Use a Rotary Encoder in an MCU-Based Project

How to Use a Rotary Encoder in an MCU-Based Project

Learn how to use a rotary encoder in an Arduino project. Rotary encoders are electromechanical, electro-optical or electro-magnetic devices which convert rotational motion into digital or analog information.


Projects Nov 01, 2015 by Tim Youngblood
Breadboard and Program an ESP-01 Circuit with the Arduino IDE

Breadboard and Program an ESP-01 Circuit with the Arduino IDE

The ESP8266 combination microcontroller/Wi-Fi modules can now be programmed using the Arduino IDE. Here's how!


How to Build a Web-based Garage Door Controller

How to Build a Web-based Garage Door Controller

Use your Android device to open and close your garage door! Much better than that clunky remote you've been using.