The 2023 Christmas card
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…
Posts by Ragnar Ranøyen Homb
Behavior adjustment based on system input voltage
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
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
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
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
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?
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
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
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
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
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
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
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
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…
3D-printing and finishing
When 3D-printing, you typically get visible layers. These irregularities is often desirable to hide. In this post will show you a method you can use to conceal them and finish the part. The Subject and the Plan The model used…