Course

# Basic electronics by CircuitBread

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CircuitBread is all about electronics and electrical engineering tutorials, with content on how electronics work and some extras for fun!

## Course content preview

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### How to dim an LED - the two MOST COMMON ways | Basic Electronics

0h12m

Watch the 1st video of the course

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## Course content

0h03m

### The Difference between AC and DC Electricity | Basic Electronics

A brief video discussing the difference between how AC and DC electricity works, some of the benefits and drawbacks of both, as well as some common applications of both.

Subscribe to CircuitBread for more videos on basic electronics! This video is also available with the transcript at: https://www.circuitbread.com/tutorials/the-difference-between-ac-and-dc-electricity

AC / DC - 00:09
Benefits and Drawbacks - 01:22
DC is easier to use - 01:22
AC is easier to transport - 02:00
Summary - 02:39

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growing array of equations, tools, and tutorials, we're striving for the best ways to make electronics and electrical engineering topics more accessible to everyone.

0h03m

### A Simple Explanation of Power and Phase - With Animation | Basic Electronics

The phase difference between different voltages inputs and the phase difference between voltage and current can seem confusing! We think that with a little explanation and some simple animations, anyone can understand it.

Subscribe to CircuitBread for more videos on basic electronics! This video, and its transcript, is also available at: https://www.circuitbread.com/tutorials/power-and-phase

Voltage being out of phase with other voltages and voltage and current being out of phase - 0:10
Voltage being out of phase with other voltage sources - 0:28
3-phase Power - 0:34
Voltage and current out of phase - 1:48
Summary - 3:18

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growing array of equations, tools, and tutorials, we're striving for the best ways to make electronics and electrical engineering topics m

0h03m

### What is Electricity? | Basic Electronics

What is electricity? A brief video describing the properties of electrons, how they interact, and how we can use those properties to get them to do work.

Subscribe to CircuitBread for more videos on basic electronics! This video and its transcript, is available at: https://www.circuitbread.com/tutorials/what-is-electricity

Fraternal hatred - 00:09
How electrons are connected to their nucleus - 00:20
How we can use that hatred to do work - 00:46
How electrons flow opposite from current - 02:38
Summary - 03:03

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growing array of equations, tools, and tutorials, we're striving for the best ways to make electronics and electrical engineering topics more accessible to everyone.

0h02m

### How Benjamin Franklin discovered STATIC ELECTRICITY! | Basic Electronics

In this video, we talk about how Benjamin Franklin contributed to the understanding of static electricity through his weird experiments with glass and rubber rods. The discovery of different electric charges is discussed and why we get static buildup and discharge.

Subscribe to CircuitBread for more videos on basic electronics! This video tutorial is available as text at: https://www.circuitbread.com/tutorials/benjamin-franklin-static-electricity

Benjamin Franklin uses rubber and fur - 00:28
What the electrons are doing when the rods are rubbed - 0:57
How the electrons are added or removed - 01:40
Why it's called static electricity - 01:52
Summary - 2:17

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growing array of equations, tools, and tutorials, we're striving for the best ways to make electronics

0h03m

### Current and Voltage Sources (With Definition) | Basic Electronics

The ultimate sources of power... voltage and current sources! These foundational pieces of electrical and electronics engineering are the way to describe *any* source of power in circuit design. They have their own dangers and differences in how they work in circuit analysis and in real life. In this tutorial, we'll go over definitions and learn what is needed to work with both voltage and current sources. For more detail in a related written tutorial, check out this page: https://www.circuitbread.com/tutorials/voltage-and-current-sources

Subscribe to CircuitBread for more videos on basic electronics!

00:19 Definition of a Voltage Source
00:47 Ohm's Law for Solving Voltage
01:19 Definition of a Current Source
02:39 Summary

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growing array of equations, tool

0h06m

### Potentiometer Basics - How they Work | Basic Electronics

Potentiometers, trimmers, and rheostats are used in a lot of electronics and they're not only useful but interesting! We take a potentiometer apart, discuss the differences between analog and digital potentiometers, as well as linear and logarithmic tapers (how they change). Check out the video to see how they work, where they work, and why you'd want to use the different types.

Subscribe to CircuitBread for more videos on basic electronics! To get more detail in a related written tutorial, we have this video and that tutorial here: https://www.circuitbread.com/tutorials/basics-of-potentiometers

00:06 Difference between Trimmers and Rheostats
01:04 Three Connection Points of Potentiometer
01:32 Linear and Logarithmic Potentiometers
05:13 Types of Potentiometers

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily learn about and use electronics. With a

0h05m

### Calculate series and parallel resistor equivalence | Basic Electronics

Without getting into the math, we take a simple route to establish a more intuitive feeling of how resistors in parallel and resistors in series act. To increase overall resistance, you put resistors in series, to decrease overall resistance, you can put them in parallel. But there's more to it than that! Give it a watch to familiarize yourself better with these concepts. Then check out the site to get more information and a written tutorial including the math: https://www.circuitbread.com/tutorials/parallel-and-series-resistors

Subscribe to CircuitBread for more videos on basic electronics! If you need to do the equivalence calculations, check out our equations and tools, including parallel and series resistor equivalence tools, on circuitbread.com!

0:12 Common Types of Resistor Configurations
0:22 Resistors in Series
0:38 Resistors in Parallel
0:59 Difference between Series and Parallel Resistors
1:30 How to Find the Series Equivalent Resistance
2:57 How to F

0h06m

### How to select resistor values for LEDs | Basic Electronics

We wanted to show how easy it is to select the right resistor for your next LED project. It's entirely possible that Josh broke it into more steps than he needed, but they're incredibly simple and easy to follow, so we won't get too upset with him. He goes over the importance of the forward voltage of the LED, the current needed but also the dangers of too much current, additional things to watch out for when selecting the resistor, all while explaining it both conceptually and showing the easy math required.

Subscribe to CircuitBread for more videos on basic electronics!

To use our calculator for finding the resistor, go to: https://www.circuitbread.com/tools/led-resistor-calculator

As referenced in the video, here's our tutorial on resistors where, among other things, the seemingly random spacing of resistor values is discussed: https://www.circuitbread.com/tutorials/whats-a-resistor

And if you want to see this video as a brief written tutorial, check it out here: https://www.

0h08m

### Getting Started with a Multimeter | Basic Electronics

Getting started with a multimeter. These versatile and incredibly helpful tools are inexpensive and readily available and can make any electrical and electronics work easier. But, if you don't know what you're doing, they can be useless and potentially dangerous. In this video, we go over the basics of a multimeters usage to show how to measure resistance, voltage, and current as well as some tips on how to use a multimeter safely.

Subscribe to CircuitBread for more videos on basic electronics! This video, as well as more detail and a written tutorial, is also available here: https://www.circuitbread.com/tutorials/how-to-use-a-multimeter

01:20 Measuring the Resistance
03:36 Measuring the Voltage
06:10 Measuring the Current

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growing array of equations, tools, a

0h09m

### Oscilloscopes 101 - How to use an o-scope! | Basic Electronics

With all the knobs and buttons, an oscilloscope can be intimidating to new users. We decided to just focus on the most important things you need to know to be able to use an o-scope. After this, you will be able to find your signals and understand what you're looking at, be comfortable with the interface, and have the foundation needed to start exploring other features on your own.

Subscribe to CircuitBread for more videos on basic electronics! This video, as well as a more detailed written tutorial on oscilloscopes, is available here: https://www.circuitbread.com/tutorials/oscilloscopes-101

The Auto Button, friend or foe? - 0:10
Divisions, horizontal scale, and phase offset - 1:45
How to find rise time - 3:48
Divisions, vertical scale and shifting - 4:40
Probe and X10 or X1 scaling - 5:40
Trigger - 6:28
Measurement tools - 7:42
Summary - 9:00

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

0h05m

### History of LED Lights (light emitting diodes) | Basic Electronics

While LEDs may be everywhere now, that obviously wasn't always the case. So how did we go from no LEDs to LEDs in nearly everything on the planet? As we researched it, we were surprised by how they came to be and the strangely long gaps in their development.

Subscribe to CircuitBread for more videos on basic electronics! For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

And If you want to see this video as a brief written tutorial, check it out here:

00:19 Who discovered electroluminescence and when?
00:24 What is electroluminescence?
00:59 Who made an investigation and publish a paper about electroluminescence?
01:23 Who made an experiment about electroluminescence and coined it as Losev Light?
01:49 Who patented a lighting device based on Silicon carbide?
02:08 Who discovered about the infrared emitting diodes?
02:16 Who created the first actua

0h11m

### LEDs and Forward Voltage | Basic Electronics

Light emitting diodes, LEDs, are awesome and are nearly everywhere nowadays. We take a practical trip through the basics of LEDs, in particular their forward voltage and how *not* to apply a voltage across them. We compare the forward voltage of different LED colors. Finally, we destroy an LED in an incredibly unsatisfying way while seeing how current changes with voltage. To learn more with a related written tutorial, check out this page: https://www.circuitbread.com/tutorials/leds-and-forward-voltage

Subscribe to CircuitBread for more videos on basic electronics!

01:05 Definition of LEDs
01:32 Parts of an LED
02:30 Compare forward voltage of different LED
5:45 Directionality of LEDs
6:50 When you overvoltage an LED.
9:55 Josh embarrasses himself.

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com
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CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growi

0h07m

### How an RGB LED works and how to use one! | Basic Electronics

Ever want to learn how an RGB LED works? RGB LEDs are awesome because you can dynamically create basically any color of the rainbow. We wanted to do this quick overview so that you can better understand what they are and how to set them up. If you want to do this yourself, all the wiring and code used in this example are on our website, here: https://www.circuitbread.com/tutorials/how-rgb-leds-work-and-how-to-control-color

Subscribe to CircuitBread for more videos on basic electronics!

00:23 What is RGB LED?
00:42 What does RGB LED stands for?
01:13 How to get a certain color output with RGB LED?
02:23 What is the difference between a common anode and common cathode?
02:35 How to control each color in an RGB LED?
05:00 What to take into account when controlling the color output in an RGB LED?

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily l

0h07m

### How do resistors work? (Animated) | Basic Electronics

Resistors are everywhere - we would bet good money there's one in your hand or on your lap right now. Unless you're old-school and still have a desktop computer. Either way, resistors are one of the fundamental components of electronics and incredibly important to understand. In this tutorial, we answer the question, "how do resistors work?"

We also cover this topic in our written tutorial on CircuitBread.com where we go more in-depth on this topic: https://www.circuitbread.com/tutorials/whats-a-resistor

00:31 Resistor Symbols
01:15 Varieties of Resistors
03:08 Analogy of a Resistor
03:26 Ohm's Law
04:05 Pointers for Choosing a Resistor

Subscribe to CircuitBread for more videos on basic electronics!

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growing array of equations, tools, and tutorials, we're

0h08m

### How voltage dividers work - Voltage Division | Basic Electronics

How voltage dividers work! Voltage dividers are an interesting mixture of being extremely easy to make yet surprisingly complicated in their strengths and weaknesses when being used. We cover how to set them up and then when you should and shouldn't use them! If you're interested in a more in-depth written tutorial on voltage dividers, check out this page: https://www.circuitbread.com/tutorials/voltage-divider

0:10 What is a voltage divider?
3:35 Biggest Issue with voltage divider
7:24 Benefit of using a voltage divider

Subscribe to CircuitBread for more videos on basic electronics!

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growing array of equations, tools, and tutorials, we're striving for the best ways to make electronics and electrical engineering topics more accessible to everyone.

Connect wi

0h13m

### Your LED questions ANSWERED! (Part 1) | Basic Electronics

Ask an Electrical Engineer is a series where frequently asked questions from non-engineers will be answered by an engineer. For this video, our main topic is all about LEDs (Light Emitting Diodes). Subscribe to CircuitBread for more videos on basic electronics! You can also find the transcript here: https://www.circuitbread.com/tutorials/your-led-questions-answered-part-1

00:24 How do LEDs (light emitting diodes) work ... and what's a diode?
02:05 Why are LEDs better?
02:58 When did LEDs become popular?
04:14 How much more efficient are LEDs than other options?
05:12 Why do LEDs last so long?
06:47 Are LEDs AC or DC?
08:20 What are LEDs made from?
09:36 Are LEDs polarized?
10:41 Will 24v LEDs work on 12v?
12:14 How do LEDs change color?

Ask an Electrical Engineer - Your LED Questions Answered! (Part 1)

Ask an Electrical Engineer - Your LED Questions Answered! (Part 2)

For electronics tools, tu

0h18m

### Why Are LED's Better? (Comparing different types of light bulbs) | Basic Electronics

Why are LED's better? There's a lot of hype around LEDs of different types and, in our opinion, it's deserved! Josh compares some of the most popular bulb types on the market and discusses their strengths, weaknesses, and why LEDs, while not perfect, generally are the best option.
To see this topic covered as a written tutorial, check out our site: https://www.circuitbread.com/tutorials/why-are-leds-better-comparing-different-types-of-light-bulbs

We rate each bulb with a handy chart and have a full comparison at the end of the video.

00:36 Incandescent
03:38 Gas discharge
08:42 Fluorescent
11:24 CFL (Compact fluorescent lamp)
13:49 LED (Light Emitting Diodes)
17:55 Full comparison chart

--

Subscribe to CircuitBread for more videos on basic electronics!

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growing array of eq

0h13m

### Power Dissipation in Circuits plus an EXPERIMENT | Basic Electronics

Power dissipation in circuits is a fact of life in all aspects of electrical engineering, not just electronics. In this tutorial, we talk about what power dissipation is, when you want it or don't want it, how to reduce unwanted power dissipation, and finally, we melt some stuff on accident.

To learn more about power dissipation in circuits, check out the written tutorial at: https://www.circuitbread.com/tutorials/power-dissipation-in-circuits

0:03 Definition of Power Dissipation
1:22 Power Equation

Subscribe to CircuitBread for more videos on basic electronics!

For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com

CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growing array of equations, tools, and tutorials, we're striving for the best ways to make electronics and electrical engineering topics more accessible to everyone.

Ins

0h08m

### Your LED questions ANSWERED! (Part 2) | Basic Electronics

We had too many questions, so here's part 2!

Ask an Electrical Engineer is a series where frequently asked questions from non-engineers will be answered by an engineer. For this video, our main topic is all about LEDs (Light Emitting Diodes). We've also got the transcript on CircuitBread.com - https://www.circuitbread.com/tutorials/your-led-questions-answered-part-2

Subscribe to CircuitBread for more videos on basic electronics!

00:18 Are LEDs better than HIDs?
01:29 Are LEDs good for growing "plants"
02:18 Are LEDs directional?
03:17 Are LEDs environmentally friendly?
05:07 Can LEDs be made from Silicon and Germanium?
05:16 Why do LEDs blink or flicker?
06:17 How do LEDs produce white light?
07:22 How can LEDs be used most effectively in a bear attack?
07:42 Are LEDs waterproof?

Ask an Electrical Engineer - Your LED Questions Answered! (Part 1)

Ask an Electrical Engineer - Your LED Questions Answered! (Part 2)
https

0h12m

### How to dim an LED - the two MOST COMMON ways | Basic Electronics

We talk through how to dim an LED (two most common ways), the PWM method and the current varying method. We demonstrate how the duty cycle change of a pulse width modulated signal can bring the brightness down to the desired level. For more information, and to see the code and circuit setup used in the video, go check out this tutorial at: https://www.circuitbread.com/tutorials/how-to-dim-an-led

Subscribe to CircuitBread for more videos on basic electronics!