Göran Sander · page 11 of 16

Stockholm, Sweden · 187 posts

Qlik Sense consultant and toolmaker at Ptarmigan Labs. Ten years at Spotify, Qlik Luminary and Partner Ambassador, author of the open source Butler tools.

About Ptarmigan Labs
Electronics

Fixing a broken BK Precision 879b LCR meter

Once you got yourself a good multimeter, a good LCR meter is probably the next step. Remember to discharge any caps before measuring them though - otherwise the result might be what caused this post...

3 min read
Qlik Sense

Qlik Sense servers need time server connectivity to stay in sync

Probably pretty obvious when thinking about it in retrospect, but this one hit us the other week. After setting up some Qlik Sense servers without any real issues (rather the opposite – it is incredibly quick and easy to deploy an Enterprise scale Sense system!), one day one of the rim

2 min read
macOS

Upgrade to Windows 10 on VirtualBox with OSX host

Lots of OS upgrades lately, Windows went to Windows 10 and Apple to El Capitan. I am usually pretty ok upgrading to Apple’s latest OSs a week or two after their release – they are usually of good quality. As VirtualBox (“VBox”) also came out with their version 5 release,

3 min read
QlikView

Qlik Sense and QlikView code snippets available as GitHub Gists

I finally got around to start using GitHub Gists a bit more systematically for storing useful bits of code. Going forward I will post useful, reusable pieces of Qlik Sense and QlikView code there. My own experience tells me there is tons of time to be saved by reusing existing

1 min read
Node-RED

Listing all Telldus Live devices in Node-RED

Continuing from the previous post about publishing data from Telldus Live to MQTT, here is small piece of related Node-RED code. It outputs a list of all (wirelessly controlled) 220V/mains switches I have linked to Telldus Live, using a Tellstick Net. The background of the code was simply

1 min read
Home automation

Using Node-RED for publishing Telldus Live data to MQTT

Telldus has a set of nice little gadgets (“Tellstick”, for short) that both allow you to control remote switches over radio (433.92 MHz), and to read sensors transmitting on that same frequency. Telldus also has a backend service, Telldus Live, which offer Tellstick users scheduling features (turning lamps on/

2 min read
macOS

Making OS X awesome - one tool at a time (part 2)

The previous post listed some of my favourite OS apps, but there are a few more that also make everyday life easier. When thinking about it, the apps below are just as useful and important as the ones in the previous post. The apps are: * Wunderlist: Todo tracking * Carbon Copy

6 min read
macOS

Making OS X awesome - one tool at a time (part 1)

Being fairly multilingual – I use Macs, Windows and Linux boxes daily – OS X has during the last 4-5 years been the main platform for daily work. And as much as I like the way OS X has developed over the years (including the fact that it’s free once

7 min read
macOS

Wake-on-lan workaround for OSX Yosemite on Mac Mini

Turns out that OS X Yosemite on Mac Mini does not support standard Wake-On-Lan (“WOL”), at least not when using the built-in Ethernet port. Which is strange – but when trying to make the media server attached to the household’s TV a bit more energy efficient, I

1 min read
Synology

CrashPlan stopped working after Synology DSM 5.2 update

I must say I am pretty happy with the backup solution here. It took a few years to find a setup I am happy with, but this one works: * Storing important files and data on the Synology DS1515+, with ca 8 TB disk (effective raided size) and 2 SSD drives

1 min read
Qlik Sense

Does Qlik Sense make sense? Not always...

Qlik Sense is pretty cool. Ok, it’s early days and they are still on version 1.x, but still – lots of potential there. And the name is kind of neat too – Qlik’s marketing people must have had a long hard think before settling on “Sense” for their next

1 min read