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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 Build a Robot - Testing Hardware

How to Build a Robot - Testing Hardware

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


How to Build a Robot - PCB Design

How to Build a Robot - PCB Design

Part two of a series of articles on building a robot that can follow lines or walls and avoid obstacles! This time we'll be covering PCB design.


Get Started with Matplotlib in Python to Visualize Data Collected from Measurement Instruments

Get Started with Matplotlib in Python to Visualize Data Collected from Measurement Instruments

This article explains how to install PyVisa and MatPlotlib for Python. PyVisa connects a computer to the measurement instruments and matplotlib helps to visualize the data collected from these instruments.


Projects Oct 24, 2015 by Ujjwal Roy
Intro to Embedded Development: Styles and Standards

Intro to Embedded Development: Styles and Standards

Some of the unique aspects of embedded programming design will be highlighted, and various standards and tools common to the field will be discussed. Great for first-time designers and developers who have some programming experience, but are new to microcontrollers and things such as real-time operating systems.


How To Build A Thermostat with a PICAXE

How To Build A Thermostat with a PICAXE

An inexpensive PICAXE microcontroller makes it easy to read a temperature sensor, compare the temperature to a setpoint, and turn a heater or cooler circuit on or off.


Make an LED Light Strip AHRS with Arduino and MPU-6050

Make an LED Light Strip AHRS with Arduino and MPU-6050

Use a WS2812 RGB LED strip to visualize the pose of an MPU-6050 6-degree-of-freedom IMU in three dimensional space.


Projects Oct 13, 2015 by Patrick Lloyd
Raspberry Pi Project: Control a DC Fan

Raspberry Pi Project: Control a DC Fan

Control a fan based on the current temperature with a Raspberry Pi!


Make a BLE Temperature Sensor with the nRF51

Make a BLE Temperature Sensor with the nRF51

This article demonstrates how to use the built-in die temperature sensor on the nRF51. The die temperature is not the same as ambient temperature, but can be calibrated to ambient temperature by using a correction factor.


How to Build a Real-Time Clock with a PICAXE

How to Build a Real-Time Clock with a PICAXE

Teaming up a PICAXE µC, a DS1307 real time clock module, and an LCD117 serial adapter with a liquid crystal display is a fun, educational way to assemble your own date and time demo.


Light Bar “Relative Comfort” Thermometer with NodeMCU

Light Bar “Relative Comfort” Thermometer with NodeMCU

Create a wireless "relative comfort" light bar thermometer by broadcasting temperature data across multiple ESP8266 modules running NodeMCU using MQTT.


Projects Sep 28, 2015 by Patrick Lloyd
The New Wireless Thread Network Protocol

The New Wireless Thread Network Protocol

Thread, a network protocol released July 2015, is optimized for the connected home network. It is IPv6 based, uses IEEE Standard 802.15.4 and runs on existing hardware.


Using a Serial LCD with a PICAXE

Using a Serial LCD with a PICAXE

Using an LCD increases the versatility of any microcontroller by displaying data outputs and memory contents. This serial adapter uses only one I/O.


Writing PICAXE BASIC Code - Part 4

Writing PICAXE BASIC Code - Part 4

Part 4 introduces the readadc, select, case, and endselect PICAXE BASIC commands. It is the fourth article in a multi-part series on writing PICAXE code.


Introduction to the MQTT Protocol on NodeMCU

Introduction to the MQTT Protocol on NodeMCU

MQ Telemetry Transport (MQTT) is a popular low-overhead messaging protocol used by many IoT devices to communicate. This tutorial will show the user how to to set up a basic MQTT network using Python on his or her computer and an ESP8266 running the NodeMCU firmware.


Projects Sep 15, 2015 by Patrick Lloyd
Upgrade Your Power Wheels with Motor Control Basics

Upgrade Your Power Wheels with Motor Control Basics

Adding variable speed control and battery monitoring to a Power Wheels truck!


Writing PICAXE BASIC Code - Part 3

Writing PICAXE BASIC Code - Part 3

Part 3 introduces the if...then, endif, gosub, and return PICAXE BASIC commands. It is the third article in a multi-part series on writing PICAXE code.


An Introduction to SCADA Systems

An Introduction to SCADA Systems

This article walks through SCADA systems used to automate various power systems used in numerous industries. It also details what the system is made up of, how they optimize performance in large-scale systems, and how these systems still poses a threat to a company's vulnerability to data and resources.


Designing for Manufacturability

Designing for Manufacturability

A guideline for proper considerations when making electrical platforms that can be easily, cheaply, and quickly manufactured. The purpose and methods of proper board design, validation, testing, and technical support is discussed, from small to large scale production.


An Introduction to Control Systems: Designing a PID Controller Using MATLAB’s SISO Tool

An Introduction to Control Systems: Designing a PID Controller Using MATLAB’s SISO Tool

Control systems engineering requires knowledge of at least two basic components of a system: the plant, which describes the mathematically described behavior of your system, and the output, which is the goal you are trying to reach.