Electronics

Efundies Staff

September 01, 2022 (Last Updated: March 06, 2023) | Reading Time: About 1 minute

We think that learning electronics should be fun.

We have a variety of projects that use AVR, Arduino, MQTT, home-automation, and other technologies to bring your electronics projects to life.

Electronics topics include chips, capacitors, resistors, transistors, and building circuit boards.

Suggested Electronics Articles

How to Prototype Electronics Projects

When experimenting with electronics, it is usually best to practice in what is called a Solderless Breadboard.

How to Read Your Power Meter

Learn how to read your power meter and measure the energy consumption of various devices in your home.

Electronics Fundamentals

Learn all about resistors, capacitors, and transistors in our collection of Electronics Fundamentals articles.

How to Understand Electronics Signals and Flow for Beginners

Signals and Systems is a common term that is used to refer to system design.

Electronics and Programming Guides

Efundies.com - Electronics, Gardening, Programming

Electronics

Our collection of electronics articles helps you get started in home automation and circuit building.

More Electronics Articles

Electronics topics include chips, capacitors, resistors, transistors, and building circuit boards.

Electronics

Our collection of electronics articles helps you get started in home automation and circuit building.

How to Understand Electronics Signals and Flow for Beginners

Signals and Systems is a common term that is used to refer to system design.

When you mix programming and electronics together you get fun.

Electronics and Programming Guides

Efundies.com - Electronics, Gardening, Programming

Some common components include capacitors and resistors, as well as transistors, LED displays, and chips.

Electronics Fundamentals

Learn all about resistors, capacitors, and transistors in our collection of Electronics Fundamentals articles.

Analog power meter reading

How to Read Your Power Meter

Learn how to read your power meter and measure the energy consumption of various devices in your home.

RSR solderless breadboard

How to Prototype Electronics Projects

When experimenting with electronics, it is usually best to practice in what is called a Solderless Breadboard.

More from Efundies

Your home automation server can run many different operating systems, including Ubuntu, Proxmox, Unraid, and TrueNAS.

Unraid vs Proxmox vs Ubuntu - Battle For the Best Home Network Server OS

When it comes time to put an operating system on your home network server, you've got a few options.

Electronics topics include chips, capacitors, resistors, transistors, and building circuit boards.

Electronics

Our collection of electronics articles helps you get started in home automation and circuit building.

How To Read Schematics

Those pictures are called a schematic. A schematic is a picture representation of what we are talking about in electronics.

AVR Port Input in C

### Connect PortB To Switches Remember how we connected **PORTA** to the **LEDS**. Now we are going to connect **PORTB** to the **SWITCHES**.

Mosquitto is one of the most popular open source MQTT brokers.

How To Set Up An MQTT Broker with Mosquitto

There are a few options to get your MQTT broker up and running, including Dockers and bare-metal installations. Let's talk about some of the most common ways to get your MQTT broker ready to go.

What is a binary program file

What is a Binary Program File

We cover what binary program files are and where you should put them on your computer

NodeMCU is one of our go-to chips for tackling various home automation projects.

NodeMCU

We use NodeMCU boards for almost every aspect of home automation. These inexpensive little power-houses can solve many home automation problems.

Learning Linux will help you with many different home automation projects.

Linux

When you get interested in home automation, you are eventually going to want to learn Linux.

Load an Image in C#

- Perhaps you want to create an image processing program. - You may need to resize or rescale an image.

Begining Circuit Analysis and Ohms Law

For simple circuits this is pretty easy. For complex circuits it can be amazingly hard, even for pros.

What Is A Circuit

In general, you will hear the word used to describe what a schematic shows. Most projects are a circuit and most schematics are a circuit.

C# Text File

There is a static object called "File" (located in System. IO) that does all the hard work for you.

Save png

How to Save a PNG File in C#

This guide will walk you through the steps required to save an Image or Bitmap to disc in the PNG format and allow you to specify the compression quality.

Scale an Image in C# Preserving Aspect Ratio

If you need to change the size of an Image without changing the ratio of X to Y then this article tells you how.

How to Adjust the Contrast of an Image in C#

Adjusting the contrast of an image in C# is an easy operation because it can be done on a single pixel at a time.

Here’s a closeup of how we wired our IRF520 modules. You can see that the power to the modules is in parallel.

MIDI Controlled Solenoids with Arduino and Ableton Live - Part 1

At the end of the series you will have a setup that is capable doing this. This is a pretty complex topic so it is split into 3 parts to make it easier to follow.

Node-RED makes writing home automations fast and easy.

Node-RED

Node-RED is the easiest way to manage your home automation rules. It couples well with Home Assistant and is much easier to program.

There are many different Arduinos to choose from, such as this Uno variety.

Arduino

Many home automation projects can be solved by simply "throwing an Arduino at it". Our Arduino articles show you how.

Image Processing in C#: A Comprehensive Guide

C# is a great language to do image processing in. It's fast and easy to handle complex image manipulations with it.

How to Select the Right Resistor for Your Circuit: A Fundamentals Guide

The most important component to understand in electronics is the resistor.

Personal binary executable directory

Make a Personal Binary Directory on Your Computer

If you want to keep your computer organized, it's a good idea to create a personal binary directory.

How To Quickly Create a OneNote Page from the Command Line

OneNote is a great tool for organizing your thoughts and keeping track of your work, and you can create a OneNote page directly from the command line.

How to Set Up STK500 Jumper Settings for AVR Programming

Make sure that you have the STK500 user guide on hand, you are going to need it.

C# Color Object

Once you have a Color object you can easily get the RGB and HSB values out of it.

Some common components include capacitors and resistors, as well as transistors, LED displays, and chips.

Electronics Fundamentals

Learn all about resistors, capacitors, and transistors in our collection of Electronics Fundamentals articles.

How to compile ncmpcpp on CentOs 8

If you are new to compiling applications on Linux then this can be a bit daunting the first time you do it.

How to Implement AVR Timer Interrupts in C for Atmel Microcontrollers

Timer interrupts are an excellent way of having your AVR do something at a given interval.

Introduction to the Command Line Interface: A Beginners Guide to Using the CLI

Introduction to the Command-Line Interface for Beginners

The command-line interface is a text-based interface that allows you to interact with your computer.

5 Reasons You Should be Using Docker for Home Automation

If you are not using Docker on your home automation server, then it's time to start thinking about it.

AVR Port Input Logic

In this guide we will write a program in C that makes some decisions based on the state of input pins.

If you have to move massive amounts of data, then you should be thinking about Robocopy and rsync.

How to Move Massive Amounts of Data Safely and Efficiently

If you're dealing with a large amount of data, you need to make sure you're moving it safely and efficiently. Here are some tips on how to do just that.

Perl may be an old language, but it is still the glue that holds many projects together.

Perl

Perl is one of the most common glue languages available on Linux. It is useful in home automation for quick scripts as well as complex processes.

MQTT is the backbone of many home automation systems.

MQTT

MQTT is the backbone of many home automation systems. We consider MQTT to be the most important part of your home automation system.

C# Switch

A switch statement in C# is a great way to switch between options.

What are Transistors and How do They Work?

With the transistor we introduce the first 3 legged device. Transistors come in many varieties, shapes and sizes.

If you want to conIf you want to connect to your MQTT broker from the internet, then you need to forward a port in your router.

Connect to Your MQTT Broker from the Internet: Port Forwarding MQTT

If you want to connect to your MQTT broker from the internet, then you need to forward a port in your router

How to Create a WinAVR C Skeleton File

If you are New To C then you can consider this a crash course introduction to the language.

Command line interface

Command Line Interface

Command line interface (CLI) is a text-based interface that is used to operate computer systems.

This MIDI controller can be used to play music, write tracks in a DAW, or just about any home automation you can think of.

MIDI

You can use MIDI to write songs, play music, control games, or even control your home automations.

Resistors in Parallel

Learn how to calculate the equivalent resistance of two resistors when they are wired in parallel.