Ragnar Ranøyen Homb

Ragnar makes sure everyone in Norwegian Creations run in the same direction. Besides that, he works with Embedded System Design here at NC, and have also lectured in this discipline at Norwegian University of Science and Technology. So, when it comes to PCBs and overall system design, he is a valuable asset. Ragnar also enjoys woodworking and fine literature.

Posts by Ragnar Ranøyen Homb

The 2024 Christmas card

December 20, 2024

Ragnar Ranøyen Homb

3D Printing Projects, LED Projects, Projects

Merry Christmas! Making the 2024 Christmas Card: A New Look, Same Core As the festive season approaches, it’s time for another dive into the making of our annual Christmas card here at Norwegian Creations. This year, we’re excited to share…

The 2023 Christmas card

December 22, 2023

Ragnar Ranøyen Homb

3D Printing Projects, LED Projects

Merry Christmas! A new unique Christmas Card is born! This year, as earlier years, we have made a PCB card with a MCU and shiny LEDs to assist with the holiday spirit creation =) Appearance As you probably have understood…

Behavior adjustment based on system input voltage

December 15, 2023

Ragnar Ranøyen Homb

Software Tutorials, Theoretical Tutorials, Thoughts

Behavior adjustment based on system voltage is often both possible and beneficial 🙂 In this post we will use the 2022 Christmas card as an example. What is it? In a system where the input voltage is not constant through…

The 2022 Christmas Card

December 22, 2022

Ragnar Ranøyen Homb

3D Printing Projects, LED Projects

Merry Christmas! A new unique Christmas Card is born. This year, as earlier years, we have made a PCB card with a MCU and shiny LEDs to assist with the holiday spirit creation ? Appearance Each year they have a…

Attempt to make a TRNG with Padauk PFS154

November 17, 2022

Ragnar Ranøyen Homb

Misc. Other Projects, Theoretical Tutorials

As we talked about in [A walk down the low-cost MCU-road], we landed on trying to make a random number generator with the rather low cost Padauk – PFS154. How can we create “true” randomness? Before we dive more into…

A walk down the low-cost MCU-road

October 6, 2022

Ragnar Ranøyen Homb

Common Hardware, First Impressions - Hardware, First Impressions - Software, Maker Tutorials, Software Tutorials, Theoretical Tutorials

Introduction Some projects here at Norwegian Creations involves MCUs with a good selection of internal modules in hardware. But sometimes cost is very(!!) important, and much other things are not (how much RAM does your headlamp need?). So in cases…

Digital audio synthesis part 3: Envelope generation

August 30, 2022

Ragnar Ranøyen Homb

Theoretical Tutorials

This is the third part of our blog series about digital audio synthesis. The earlier parts is easy to find on the other side of thees links: The oscillator MIDI What is envelope generation? “Automatic envelope generation” is commonly used…

Randomness: What is it? Why do we need it? How do we create it?

August 4, 2022

Ragnar Ranøyen Homb

Theoretical Tutorials

What is it? Randomness is maybe something people do not think so much about. But: TRUE RANDOMNESS IS VERY IMPORTANT! This post is only a “gentle introduction” to this whole randomness-field. Originally it’s a big rabbit-hole filled with interesting science.…

Digital audio synthesis part 2: MIDI

July 5, 2022

Ragnar Ranøyen Homb

Software Tutorials

As we could read about (and hear!) in post 1 about digital audio synthesis, it sounded “cheap” with only 8 bit sample size and ~15,6 kHz sampling rate. The goal of this post is to look more into the MIDI…

Digital audio synthesis part 1: The oscillator

March 18, 2022

Ragnar Ranøyen Homb

Arduino Tutorials, Software Tutorials, Theoretical Tutorials

This is the first part in a blog post series where we break down different objects in digital audio synthesis. This might make you able to answer the question “How does a digital synthesizer make all the awesome musical sounds?”…

The 2021 Christmas Card

December 22, 2021

Ragnar Ranøyen Homb

3D Printing Projects, LED Projects

Happy Holidays! Is that time of the year again, and a new Christmas Card is born. As earlier years we have made a PCB card and programmed it to assist with the holiday spirit creation 🙂 Appearance Each year they…

The 2020 Christmas Card

December 18, 2020

Ragnar Ranøyen Homb

3D Printing Projects, LED Projects

Happy Holidays! Is that time of the year again, and a new Christmas Card is born. As previous years we have utilized our day-to-day skills, and made a PCB card. You can see more what we do and deliver on…

Calibrating a Torque Wrench

March 26, 2020

Ragnar Ranøyen Homb

Maker Tutorials

In this post we will show you how you can calibrate a Torque Wrench. Here we calibrate a SMA Torque Wrench, but the method shown here are applicable to common Torque Wrenches. Can it be calibrated with a kitchen scale?…

Repairing a NAD C370 amplifier – Troubleshooting and Fix

February 28, 2020

Ragnar Ranøyen Homb

Misc. Other Projects

A long time ago we repaired a rather common problem on a NAD C370 amplifier: Namely the “slow start circuit”. And the fix worked great (and it still works)! But now, over 2 years later, the amplifier is back with…

Simplifying a CLI functionality on an Arduino – Using the SerialMenu library

January 29, 2020

Ragnar Ranøyen Homb

Arduino Tutorials

As shown in this blog post; we created a simple command line interface (aka. CLI) for the Arduino. It was not optimal when it came to things such as memory usage or code size, but the main goal of the…