Electronics

Efundies Staff

September 01, 2022 (Last Updated: September 14, 2022) | 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.

Electronics Fundamentals

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

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.

How to Understand Electronics Signals and Flow for Beginners

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

How to Read Your Power Meter

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

More Electronics Articles

When you mix programming and electronics together you get fun.

Electronics and Programming Guides

Efundies.com - Electronics, Gardening, Programming

How to Understand Electronics Signals and Flow for Beginners

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

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.

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.

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.

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.

More from Efundies

motor and sensitive device with caps

Intro to Capacitors

Capacitors are one of the fundamental building blocks of electronics. A solid understanding in what capacitors will help you in all electronics projects.

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.

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

You can see that the MIDI data generated in Ableton Live flows into the USB port of an Arduino, where it is used to control solenoids.

MIDI Controlled Solenoids with Arduino and Ableton Live - Part 3

This is the 3rd and final part in a 3 part series about how to control solenoids using Ableton Live and an Arduino.

AVR chips come in many different sizes and shapes. Pictured is a PLCC socket.

AVR

The AVR microprocessor is the heart of most Arduinos. Instead of using the Arduino libraries, you can learn to program this chip directly with C++.

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.

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 Replace A Color in an Image with C#

Sometimes you need to replace one color in an image with another color. C# makes it easy.

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

An MQTT broker helps glue your home automation systems together.

How To Choose an MQTT Broker: Mosquitto vs HiveMQ vs Home Assistant

When it comes time to choose an MQTT broker, you have a few choices. Let's check out the pros and cons of Mosquitto, HiveMQ, and Home Assistant's built-in MQTT broker.

MIDI Controlled Solenoids with Arduino and Ableton Live - Part 2

This is part 2 in a 3 part series that shows how to make Ableton Live play music on electric solenoids using an Arduino.

Load an Image in C#

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

How To Read Schematics

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

Docker is an essential service on your home automation server

Install Docker on Your Home Automation Server: 4 Different Ways

There are many different ways to install Docker for Home Automation. Let's talk about some of the ways that you can install Docker on your home automation server.

How to Darken an Image in C#

In order to darken an image in C# you need to look at each pixel one at a time and decrease it's red, green, and blue values.

How to Lighten an Image in C#

In order to lighten an image in C# you need to look at each pixel one at a time and increase it's red, green, and blue values.

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.

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.

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.

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.

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.

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.

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.

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**.

C# is a programming language created by Microsoft as a direct competitor to Java.

C# (C-Sharp) Programming Language - Tutorials, Code Examples, and More

C# is an amazing language that is built for speed and fast development time. Learn how to manipulate images with C#.

AVR Port Output in C

Port output on an AVR microcontroller is very flexible. We show you how to configure each register.

C#: How to Use HTML Colors in Your Code

The .Net framework has a great object for dealing with colors called Color that we use to deal with HTML color codes.

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

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

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.

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.

C# Text File

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

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.

C# Color Object

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

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.

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.

This note was created using the OneNote CLI command line interface.

OneNote Command Line Interface: All You Need to Know

The OneNote Command Line Interface (CLI) is a powerful tool that lets you manage your OneNote notes from the comfort of your command line.

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.

Resistors in Parallel

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

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.

433 Mhz hardware can extend your home automation.

433 Mhz Radio Transmitters

433 Mhz radio transmitters are available everywhere and they are usually very inexpensive. With a little bit of programming we can make them do anything we want.