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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.


Build a Thermocouple Amplifier and Custom KiCad Libraries

Build a Thermocouple Amplifier and Custom KiCad Libraries

Building on skills developed in the introductory KiCad tutorial, this article will focus on creating custom parts and adding them to a local library, expanding the default libraries to include community repositories, and contributing parts back into the open source ecosystem. The end product will be a MAX31855 K-type thermocouple amplifier which can be used for a huge array of temperature sensing projects.


Projects Aug 10, 2015 by Patrick Lloyd
Fundamentals Of Quantum Computing

Fundamentals Of Quantum Computing

This article walks through the very basics of quantum computing and how they are designed. It will also provide accurate information about the principles behind quantum theory that helps quantum computing work. The objective is to help you understand this new age technology and its benefits.


Transformer Isolation

Transformer Isolation

An in-depth look at transformer isolation. Electrical isolation is necessary to protect circuits, equipment, and people from shocks and short circuits, as well as to make accurate measurements. Isolation transformers are one way to go.


Introduction to KiCad on Ubuntu

Introduction to KiCad on Ubuntu

Learn how to install the new and improved KiCad on Ubuntu 15.04 and then build a simple microcontroller board to blink an RGB LED.


How to Use Relays to Control High-Voltage Circuits with an Arduino

How to Use Relays to Control High-Voltage Circuits with an Arduino

To control high-voltage or high-power circuits with an Arduino, you have to isolate them from the Arduino with a relay. Here's how!


Use an Arduino to Control a Motor

Use an Arduino to Control a Motor

Controlling a motor with an Arduino is relatively easy. In addition to simply spinning the motor, you can control the position of the motor shaft if the motor has a rotary encoder.


Projects Jun 03, 2015 by Tim Youngblood
Communicating Serially with the Arduino

Communicating Serially with the Arduino

Communicating serially with the Arduino is easy! Here, we'll show how to take some temperature measurements and then send the measurements over the serial link.


Projects Jun 01, 2015 by Tim Youngblood