Microcontroller Tutorial 3/5: How To Design a Microcontroller Circuit

In this tutorial I will teach you how to build your own microcontroller circuit. This way, you can easily add microcontrollers to your own projects. We are now at part three of this tutorial.

In part one of the microcontroller tutorial, we looked at what a microcontroller is. We saw that a microcontroller is like a small computer, and that you can use it to build amazing things like cell phones or even your own handheld game-console.

Then in part two, we looked at different types of microcontrollers, and we chose one for our purpose. We chose the ATmega32U2 because we can program it through USB and it is reasonably easy to solder at home.

In this third part of the microcontroller tutorial, we are going to design our circuit from scratch. So we need to design a schematic diagram with all the components and connections necessary to make our circuit work.

Let’s build this thing!

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Microcontroller Tutorial 2/5: How To Choose a Microcontroller

In the previous part of the microcontroller tutorial series, we looked into the basics of microcontrollers.

Our goal is to build a microcontroller circuit that is as simple as possible. So that we can make it at home.

Next up in this tutorial is choosing a microcontroller. This can be hard! At least if you don’t know what you are doing. But after reading this second part, it will become easy ;)

Make a decision

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Microcontroller Tutorial (1/5): What is a Microcontroller?

Atmega164 microcontroller (IC)This is my first of five posts in this microcontroller tutorial series. Throughout this tutorial, I will be building a microcontroller circuit while documenting the process. By following what I do, you can make your own at home.

My goal is to make a circuit that is as simple as possible, and which requires no external programmers or debuggers. You should be able to just plug it into a USB port on your computer and program it.

I have not planned this out in any way. I am just going to build it, and write about the process. Hopefully we’ll end up with a usable circuit.

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Interview #1 – Elias Bakken: 3D Printer, Coffee Machine and Mini LCD-screen

Elias BakkenLast week I had the pleasure of interviewing Elias Bakken. He is not only a true master of electronics, he also masters the skill of mechanics. And I have to say I am jealous of his mechanical skills.

He is a good friend of mine and my old partner, so I’ve seen many of the amazing things he has built during his lifetime. We’ve also built quite a few things together.

Some of the things he has built lately are

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Learn What an Integrated Circuit Does to Your Circuit

An integrated circuit made in 2008 by Oyvind Dahl

The integrated circuit I made in 2008

Are you curious about the integrated circuit?

Back in the days when I studied microelectronics, I made my own integrated circuit. That was an incredible experience! I learned so much. And it gave me a pretty good insight into what this component is.

An integrated circuit is simply any type of circuit, made to fit onto a chip. Sometimes, we call it a chip, a microchip or an IC (Integrated Circuit).

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What You Need to Know About Current, Voltage and Resistance

Current, voltage and resistance are three important concepts in electronics. I didn’t have a clue about these things when I started out. But I could still build fun things, by following the circuit diagrams I found. I just didn’t know what was going on.

When I started learning about basic electricity in school, many pieces started to fall into place. I started understanding some of the explanations from the circuit diagrams I built.

I like to focus on the practical parts of electronics. But learning some theory as you progress is also really useful. So in today’s article you will learn the basics of current, voltage and resistance.

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The Simple Guide To Learning Electronics For Beginners

Oyvind Nydal Dahl testing an LCD displayElectronics for beginners is a topic I love. There are too many people out there trying to preach that electronics is hard. Of course it takes time to become an expert. But you can start having fun, and build useful things pretty much right away. And it’s easy!

Wouldn’t it be cool to make something like a remote control or an amplifier? Or maybe something more advanced like a quadcopter or a mobile phone?

Do these steps, and you will be well on your way to building whatever gadget you are dreaming about.

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3 Need-To-Know Soldering Techniques + Guerrilla Soldering

Throughout my electronics career I have used several different soldering techniques. In the beginning I only used my soldering iron. I was able to do almost everything with my iron. But there are situations where using a different technique is much simpler.

So let’s have a look at different soldering techniques. And at the end of the article, I’ll include a fun video with some techniques I call guerrilla soldering. I bet you’ll never see these in a class at the university, haha :)

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