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

Electronics

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

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.

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 and Programming Guides

Efundies.com - Electronics, Gardening, Programming

How to Prototype Electronics Projects

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

More Electronics 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.

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.

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.

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.

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.

More from Efundies

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.

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.

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 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.

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 Read a Schematic - Common Schematic Symbols

There are about 10 that you should memorize, and the rest you can look up. Here we will show you some common schematic symbols and give a brief description of them.

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.

How To Read Schematics

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

Resistors in Parallel

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

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.

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.

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.

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 Create a WinAVR C Skeleton File

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

Getting Started with AVR

The beauty of AVR is that once you know how to deal with one of them, you know how to deal with all of them.

Resistors in Series

When you wire resistors in series, you can simply add their values together to get the new equivalent reistance.

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**.

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.

You can use home automation to control just about anything you can think of.

Home Automation

You can use home automation to control almost anything that you can think of. Let's design your system from the ground up.

Convert an Image to Gray Scale in C# - A Quick and Easy Guide

Sometimes you need to take a color image and remove all of the color from it leaving just shades of gray. There are 3 common ways of performing this calculation, each yielding slightly different results.

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.

You can get started programming with a simple setup. All it takes is a laptop and a cup of coffee.

Programming: Tips and Tricks

A collection of tips, tricks, and snippets of code for a variety of programming languages, including C#, AVR, Arduino, and Perl.

AVR Port Output in C

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

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.

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.

This modern LED lightbulb consumes 1/10th the energy of old-school incandescent bulbs.

Electricity

Follow our electricity guides to learn how to read your power meter, save energy, and measure the power usage 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.

Begining Circuit Analysis and Ohms Law

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

C# Color Object

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

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.

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.

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.

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.

How To Create a OneNote Page from the Command Line

Sometimes you need to create a page in OneNote and it would be much easier to create it from the command line.

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.

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.

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.

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.