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Arduino Control a Relay with a Button

Use a button to control a relay: Arduino Tutorial

In this Arduino tutorial, we’re going to learn how to control a relay with a button. This is a very similar tutorial to our button LED control tutorial, but with a relay! The main difference being that a relay will allow you to control something of higher voltage than the Arduino can control directly. RELATED: […]

Arduino Use a Button to Toggle an LED

use a button to toggle an LED Arduino

In this next tutorial on the Arduino platform we’re going to learn how to use a button to toggle an LED On and Off with the press of a momentary push button. This isn’t like turning a switch on and off, rather its controlled by logic in the Arduino’s microcontroller. The Arduino reads the state […]

Arduino Button Tutorial

Arduino Button Tutorial

In this beginner series we’re going to go over the basics and need to knows of connecting a button to the Arduino and using it in your sketches. This Arduino button tutorial also covers the basics of the button itself, as it is not always obvious how a button is designed to work under the […]

Arduino Fading an LED

Fading and LED Tutorial

Fading an LED is something you’ll likely use in lot of your projects. It’s a really nice and elegant effect to make the indicators in your projects more pleasing. Parts List of this Project QTY PART/LINK 1X Arduino Uno Arduino Uno 1X USB Type B Cable 1X Solderless Breadboard 1X Jumper Wire Kit 1X LED […]

WLED: How to setup and configure WLED

WLED Setup and Configuration

WLED is an awesome open source application created to control addressable LEDs (WS2811, WS2812b, WS2813, etc) from your iOS or Android smartphone, or literally any device which can send a command via http/https over a network! It runs on the ESP32 platform of microcontrollers, which although similar to the Arduino is different but mostly compatible […]

Types of Grounds: Earth Ground, Chassis Ground, Signal Ground

There are several types of grounds used in electronics projects. And sometimes these types of grounds and the words used to describe them (earth, ground, etc.) are thrown around interchangeably.  But these different types of grounds are very different and it is good idea to know difference between them when building your projects. In most […]

Building a Breadboard Synthesizer With a Raspberry Pi and an Arduino Uno

Build a Breadboard Synthesizer (Raspberry Pi Synthesizer) Hero

There’s a lazy stereotype about middle-aged men that says that all we want to do is tinker with our gadgets. I’m doing very little to challenge it, which I guess is how I came to weather the pandemic by trying to build my own Raspberry Pi synthesizer.  Building a breadboard synthesizer is a fun project […]

OpenVPN MTU: Finding the Correct Settings

Fix OpenVPN MTU problems

Finding correct OpenVPN MTU and MSSFIX settings can really drive you batty. No really. It’s ridiculous how much trouble MTU settings can cause and how often people don’t realize that MTU is actually what’s causing the problem! My Experience with OpenVPN MTU Problems As many of you are aware, I run a ton of VPNs.  […]

How Stepper Motors Work

Stepper motors are used in so many things you buy today and most people don’t even know it! They truly are amazing little pieces of electronics and mechanics combined into one.  Even the vibrator built into your phone is likely based on stepper motor technology! In this tutorial we’re going to cover the basics of […]

Raspberry Pi Unifi Controller Setup

Raspberry Pi Unifi Controller

Ubiquiti (and their Unifi gear) have become my go to for just about anything network related. Their gear is feature rich, rock solid, and seems to really “just work”.  We couldn’t be bigger fans.  Since Unifi gear runs a Software Defined Network (SDN), it is not configured like traditional routers and switches via a command-line […]