A while back I wrote a blog series for Atmel on how to build a microcontroller board.
I also created a version for my blog, and it became very popular.
The idea was to show what it takes to build a microcontroller board from scratch. [Read more…]
9 Circuits typo
After I launched my new eBook 9 Circuits, Warren made me aware of a typo.
In project 5, The Blinking LED, I wrote that the IC has 16 pins.
But it has only 14.
The error was also in the circuit diagram, and that made it confusing.
[Read more…]
Get sponsorship for your project
Do you have a non-profit project that you’d like to build? For example for a competition or a school project?
Now you can get free printed circuit boards for your project.
A printed circuit board, or a PCB, is a board specifically designed for your project. And it makes it much easier to create projects that need a lot of connections.
To make a PCB you first need to create the schematics for your circuit. Then draw the connections you need in a PCB design software such as Eagle, KiCAD or Fritzing.
This drawing is then sent to a PCB manufacturer that will produce the final board for you. Then all you have to do is to solder the parts onto your board.
Ohmify open for enrollment
Hey, I’ve just reopened Ohmify:
Ohmify is an online platform that helps you learn and build real things with electronics.
It gives you access to more than 30 courses for both building fun projects and learning electronics.
And today or tomorrow, depends how productive I am today, I’m releasing a new course where you’ll learn to really understand what’s going on in a circuit diagram.
[Read more…]
How To Get A Job In Electronics
Many people ask me how to get a job in electronics.
Here’s my advice:
If you want a job in electronics, show them that you love electronics.
I’ve previously gotten a job as a Python programming teacher without knowing Python. And I’m convinced it was because I showed them that I loved programming (which I do).
Arduino oscilloscope with 7 lines of code
In the video below I will show you how to build an Arduino oscilloscope in 2 minutes using only 7 lines of code.
This is possible because of an update in the Arduino software.
New to Arduino? Check out What Is Arduino?
In the newest version of the Arduino software, there’s a tool that makes it super easy to build a simple oscilloscope!
It’s called Serial Plotter and it works like this:
It listens on a serial port, and it plots every number that it sees.
That means, to create an oscilloscope, all you need to do is to write code that prints out the voltage value from an analog input, and the arduino plotter will take care of the rest.
I only used 7 lines of code to make this work!
Kirchhoffs Law of Voltage and Current
Kirchhoffs law of current and voltage are two laws that are really useful when you are working with circuits.
Knowing them will make it much easier to understand circuit diagrams, design electronics, repair electronics and everything in between.
Though they might sound complicated (*), they’re not.
After you’ve learned them, it’s not really something you use – it’s something you KNOW. And it makes looking at and understanding circuit diagrams much easier.
What Is A Short Circuit And Why Do You Have It?
A short circuit is a connection that was not meant to be there. For example, if you accidentally connect the plus to the minus of a battery, you have a short circuit between plus and minus of the battery. Which is not good.
You can use it as a verb as well:
“I accidentally short’ed the battery and it exploded!”
(Yes, some batteries can really explode if you short circuit it.)
This is a very important concept to understand, because it’s used a lot in “electronics language”.
Blinking LED Circuit with Schematics and Explanation
The blinking LED circuit is like the electronics version of the “Hello World”-program. It’s a simple electronic circuit that gives you a visual cue if it works. It was the first circuit I ever built, and it felt GREAT!
The goal is to make a Light Emitting Diode (LED) blink.
Electronics Books For the Enthusiast
Sometimes I really enjoy diving into electronics books with a freshly brewed coffee by my side. Just immersing into some interesting subject. But it is really important to not get stuck in the books. You need to get your soldering iron out and practice what you learn. Otherwise it’s no use learning it, right?
There are many electronics books available today. And they can differ quite a bit in how they are written. And I love that! People like to learn in different ways. Some like the extremely detailed and heavy theory book, while other like to get practical and learn by doing.
In this article I’m going to cover a few electronics books that will help you learn electronics from scratch or expand on the knowledge that you have already gained.
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