Henrik Sommerfeld

Category: Coding

My IoT Exploration – Part 2 – Raspberry Pi Sense HAT

Continuing my Internet of Things journey from my earlier post My IoT Exploration – Part 1 – The Failure, I got a Raspberry Pi with a Sense HAT. The Sense HAT has all the features I need, integrated in one shield: temperature, humidity and barometric pressure and a LED as a bonus. Given my goal that I wanted to push the data to a hosted service, I now had a much better foundation for succeeding with that. Read →

Difference between Arduino and Raspberry Pi for a High-Level Programmer

Before I got an Arduino for Christmas I hadn’t heard about it. I had heard about Raspberry Pi though, and I was told that it was roughly the same thing. It’s true that the two devices have some common characteristics, but to me the differences are fundamental. As someone who does high-level programming for a living, I am appealed by the idea of being able to read values from analogue sensors in my code, and the plethora of sensors available for the Arduino is impressive. Read →

My IoT Exploration – Part 1 – The Failure

Last Christmas I got an Arduino starter kit for present. It took me a long time to finally open the box and have an idea about what I should do with it. What I’ve found challenging about learning new stuff that I don’t have an immediate use for, is the lack of a clear goal. Making an LED blink isn’t all that exiting in my mind and even though I like the projects in the starter kit, I didn’t do them until I had a project of my own figured out. Read →

My Guideline for Creating Easter Eggs

A way of bringing up motivation when you have been working with the same software system for an extended period of time might be to add an Easter egg. When you know the system and the people around it well, you have a good opportunity to implement an Easter egg in a good way. These are the things I try to keep in mind when creating an Easter egg. 1. Do not break anything The first and most important rule when creating an Easter egg, is to not cause a bug. Read →

Storing Configuration Data in SharePoint Lists

I have stored settings in applications built on SharePoint in a number of ways over the years, including SharePoint lists, the property bag and even web.config. As I have done most of the recent development using AngularJS and also had the need to store and fetch configuration values beyond simple data types, I have start using another way of storing these settings. By storing text files with json configuration objects in a document library I get a couple of benefits. Read →

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