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…]

Hey, I’ve just reopened Ohmify:

https://ohmify.com/join/

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…]

“Make sure you don’t short the battery, otherwise it will explode”

Language is important.

If you know what “short” means, you can easily make sure the battery don’t explode.

If you don’t know…

..well, you will have no idea if what you are doing will cause the battery to explode or not.
[Read more…]

In a previous newsletter I wrote that I was going to fix my broken drone.

I wasn’t sure how.

But, with some measuring and googling I figured it out at the end.

I wrote about my experience and how I did it. And I thought it could be interesting for you.
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Have you ever experienced that your phone’s battery dies when you need it the most?

Maybe on a hiking trip when you want to take a beautiful photo.

Maybe when you’re trying to find your friends in a festival full of people.

It’s usually at the worst possible moment.
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Crash!

That’s what I did with my new drone, the first day I got it. And it broke 🙁

I’m determined to fix it, and a couple of weeks ago I found the problem:

An integrated circuit with MOSFET transistors had broken down.

I ordered a new chip online for $1, but with a frustrating $30 shipping fee.
[Read more…]

This Christmas my girlfriend gave me a drone!

Even though there were strong winds outside, I decided to try it out. I just couldn’t wait.

So, I crashed a lot!

And one motor stopped working 🙁

But, I’ll take it as a challenge. [Read more…]

Ho ho ho!

My workday is coming to an end here in Australia.

And tomorrow is Christmas Eve.

Now I just need to get those last Christmas presents taken care of.

If you’re like me, waiting until the last minute, how about giving the gift of knowledge this year?
[Read more…]

When you learn about the transistor for the first time, usually it’s the NPN transistor.

But the PNP transistor is still a mystery to many.

If you want to design circuits with transistors, it’s really worth knowing about this type of transistor.

For example: Want to automatically turn on a light when it gets dark?
[Read more…]

Last year I found three boxes with my name on them under the Christmas tree with my family back in Norway.

As I opened them, I got more and more excited.

One contained resistors. One contained ceramic capacitors. And one contained electrolytic capacitors.

I absolutely loved it! [Read more…]