My 8 favourite agile Retrospective Warm-up Games

Photo by Jonathan Kemper on Unsplash

You can find the very same article in the Babbel Magazine as well.

In my role as Engineering Manager, I run the Scrum retrospective of the team every couple of weeks. One of my goals is to always make it fun and engaging, so people feel confident expressing their opinion in a safe space.

There is probably an endless way of achieving that, so take this article as an inspiration for finding a way that works for you and your team. A common practice to keep retros exciting is iterating on the format…


A selected list of resources to dive into the culture of successful companies.

Photos by Amazon.com

Corporate cultures play an important role in defining how successful a company is within its business domain. Not every company culture automatically leads to good results fitting the required market need and size.

When you want to make conscious decisions on building your companies values and acting on them authentically, learning from other companies is almost always a good idea.

Even though most cultures start small where they are also easy to change, finding well-documented resources for companies in small markets is very hard.

So I focus…


Run through this step-by-step guide to set-up an access-point for a version 3.2 Realtek chipset wifi dongle on Raspian.

Used hardware:


Following up on my recent post of creating a REST API for controlling an RC boat, it became clear that a more flexible setup is needed to have a joyful experience.

After playing around with the previous implementation, where navigation using buttons still felt very clumpsy, I thought that using joysticks could be a great improvement. After looking into some video games where boats were involved, I decided using two joysticks for controlling the two separate axis.

As I wanted to drive my boat outdoors at a lake as well, I started looking into a native iOS implementation which I…


After connecting my Pi Zero to an ESC, I now want to control the boat from a web interface.

Used hardware:

Used software:

Software configuration

Install the latest node.js environment with npm for package management on the Pi:

sudo apt-get install nodejs npm

Install some javascript dependencies which we need later in the tutorial:

npm…


Inspired by PiBoat I also want to control an RC boat with the help of my Raspberry Pi Zero. Read about the first steps to get the boat moving.

Used hardware:

Used software:

Find out about your OS version by running cat /etc/os-release

My kernel version is 4.14.98+ #2100. To know yours, run uname -a


After getting started with my Raspberry, I wanted to make it transportable and trackable outdoors as well. That’s when I came across these instructions, which I used as a starting point for this manual.

Used hardware:

Used software:

Find out about your OS version by running cat /etc/os-release

My kernel version is 4.14.98+ #2100. To know yours, run uname -a

Don’t worry if…


Following up after my first article on how to setup a Raspberry Pi Zero, I want to walk you through connecting a camera to it.

Used hardware:

Used software:

Find out about your OS version by running cat /etc/os-release

My kernel version is 4.14.98+ #2100. To know yours, run uname -a

Don’t worry if the kernel version does not exactly match yours, as long as you use the stretch release, this…


Used hardware

Used software

Follow installation instructions here which should lead you to a functional micro SD card flashed with the Raspian OS.

Hardware configuration

  1. Connect the HDMI cable via mini HDMI adapter to the Pi Zero and an external screen.
  2. Connect the USB keyboard via micro USB adapter to the Pi Zero micro-USB port. Use the plug closest to the centre.
  3. Plug the micro SD card in…


Last week we had our first version of the eGym labs. It is a company event where all the software developers gather in Munich for 2 days and participate in a Hackathon. People from different departments pitch problems which they believe can be solved with the help of technology. This was a lot about automating tedious repeating tasks no one really wants to do manually these days. After the pitch each developer could choose which problem he or she want to solve to improve the companies overall productivity.

Michael Münzer

Engineering Manager @ Babbel

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