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Øyvind Nydal Dahl

Did you know about this book?

November 28, 2019 By Øyvind Nydal Dahl Leave a Comment

If you were following my newsletter 2-3 years ago, you might remember 9 Circuits.

That was a very popular ebook I wrote and sold back then.

So when No Starch Press approached me suggesting we should create a new book together based on 9 Circuits, I thought:

[Read more…] about Did you know about this book?

Filed Under: Mail Archive

New Course: Blinking Christmas Lights

November 21, 2019 By Øyvind Nydal Dahl Leave a Comment

Christmas is coming up in about a month. And it’s time to build some Christmas things with electronics.

So I just added a new course project to the Ohmify library: The Blinking Christmas Lights

https://ohmify.com/courses/blinking-christmas-lights/

[Read more…] about New Course: Blinking Christmas Lights

Filed Under: Mail Archive

Did you build the blinking light?

November 13, 2019 By Øyvind Nydal Dahl Leave a Comment

LED on a breadboard

I cannot count how many times I’ve connected my battery to a freshly built circuit and…

…nothing.

In the last email I sent last week, my goal was to convince you to try and build the blinking light circuit.

Here are the build instructions:
https://www.build-electronic-circuits.com/build-blinking-light-circuit/

So, did you do it?

[Read more…] about Did you build the blinking light?

Filed Under: Mail Archive

Why does the battery voltage change?

October 2, 2019 By Øyvind Nydal Dahl 2 Comments

Today I got a question from Garry on the Ohmify community.

[GARRY]:
“When I measure the voltage of my 9V battery using my multimeter I get a reading of 9.06 when it is not connected to any circuit. When I hook the battery up to a simple circuit (i.e. 325 Ohm resistor in series with a red LED) and measure the voltage drop across the battery I get a reading of 8.65 V – why the difference?”

[Read more…] about Why does the battery voltage change?

Filed Under: Mail Archive

The tale of the “damaged” chip

September 25, 2019 By Øyvind Nydal Dahl Leave a Comment

Ok, I’ve been away from electronics for too long.

I haven’t been able to get my hands dirty and build circuits for a while.

But last week I sat down to build some circuits for the 555 Timer course.

[Read more…] about The tale of the “damaged” chip

Filed Under: Mail Archive

Are you frustrated learning electronics?

September 4, 2019 By Øyvind Nydal Dahl 1 Comment

If yes, keep this in mind:

Building a robot in Medellin

Building a circuit and understanding a circuit are two different skills.

And you can learn one without the other.

As a kid, my dad taught me how the relay works. That helped me understand a simple circuit to blink a light. And we built it together.

[Read more…] about Are you frustrated learning electronics?

Filed Under: Mail Archive

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