Arduino library for NB-IoT breakout

One of our latest projects is a breakout board for the uBlox SARA N2 module. The breakout itself isn’t very exciting – you’ve got a voltage regulator, uFl connector for the antenna, a sim chip, a reset button and the module itself. If you are anything like us you probaly want to pull out your little teal friend, aka “the Arduino” and test it out quickly before deciding to do anything further, preferrably without having to fiddle too much with AT command parsing. »

I'm a developer, and I don't like people

Ok. That was a bit harsh, but bear with me, I have a point. Sort of. How I decide if I want to use… things As a developer I’m often scurrying the wild internet for libraries and services to make my day easier. Often, there’s several competitors who wants to solve my problem and choosing which one who gets my attention is a journey. I thought I could explain what makes or breaks a first impression for a service in my book. »

How to open an IoT lab... with IoT!

Not very long ago someone asked us to come up with something for the ribbon cutting ceremony for the opening of the IoT Protolab here in Trondheim with “IoT” being the operative word. They already had some suggestions that included a samurai sword and a robot but that doesn’t mix well with a room full of people. Strange that. The IoT Protolab is a joint venture between Wireless Trondheim, Telenor and NTNU. »

Congress is open source!

Starting today the source code for Congress is available on GitHub under an Apache 2.0 license! The console (the one you can see at is also open sourced: The Congress server is written in Go and the console is written in TypeScript. It implements the majority of the LoRaWAN 1.1 spec but currently have no frequency management (it is on our todo list like so many other things). We’ve managed to push about 180 000 messages/minute through it so it performs reasonably well. »

Feeding Frenzy

It’s business as usual in the Exploratory Engineering labs. We’re still in IoT mode and NB-Iot is the order of the day. We’re currently playing with uBlox NB-Iot modules, while eagerly awaiting the upcoming nRF91 low power cellular IoT chip from Nordic Semiconductor. That doesn’t mean that we can’t indulge in side projects from time to time. Especially if the end result can save us time and money down the road. »