Application virtualization, IoT and Cloud Computing, Blog of Sacha Thomet

My Smart Home – Chapter 1: The Mirror

A colleague complained that he has a 22-inch screen which he doesn’t use anymore but he can’t sell it for a valuable price. So I said he can give me the screen for free and I would convert it to something cool, I had already an idea what I want to do with it …

My intention was to display some measurement data of my home which I collect with Netatmo or WirelessTag . Furthermore, I had the idea to supersede the paper wall calendar with a digital calendar. We use already Google calendar but my wife has the opinion that she need a calendar not only accessible with a computer or a mobile phone, there must be also something on the wall to get faster an overview about the upcoming events.

Mirror, Mirror, on the Wall …

So I told my wife that I plan to install a monitor screen in our entrance area, honestly the enthusiasm was very limited. I found out that the WAF – the wife acceptance factor for a monitor screen in the apartment is pretty low. So I needed another idea, accidentally I saw the  MagicMirror² Project which is the solution for my Software Plattform and also the word “Mirror” solves the WAF-Problem.

So there is now no more a monitor screen, instead my project is a Mirror, a Smart Mirror to be precise. Behind the Mirror is a Raspberry Pi 2 located which is powered on 24/7, rather the power of the screen itself is controlled by a MyStrom Wifi Switch  in early morning a motion dedector turn the mirror on, at other hours in the day the screen can be activated with a push on a MyStrom Wifi Button. If the Mirror is powerless it looks like an ordinary mirror.

At the end this was how my prototype looks like:

It was a long journey and I invested a lot of hours until I was happy with the result of my project.

First I started to cover the screen with an acrylic glass laminated with a mirror foil. I was not satisfied with the result, I had inclusions of dust and air under the foil. Only the more expensive but high-grade real Spy-Glass from made me happy.

It was also difficult to decide which content should appear on the display.


Currenlty my configuration shows ths content:

Top left
– Date and Time
– Google calendar from my an my wife

Top right
– Weather forecast
– Hue Status
– Recent Calls (Fritzbox)

Bottom left
– Trello Task of our family

Bottom right
– Power meter of different Powerplugs (REST via MyStrom)
– battery state of charge of my EV

Bottom center
– Headlines of “Berner Zeitung” the local Newspapar (RSS)

Component List

  • 22″ Screen who has a Digital Input – Raspberry has only HDMI (I took an old one and removed the Case – on your own risk!)
  • Raspberry Pi & Power Supply
  • Spy Glass – I ordered on
  • Smart Plug (optional)- e.g. I have this one MyStrom Wifi Switch 
  • Smart (IoT) Button (optional) – e.g. I have this one MyStrom Wifi Button.
  • Motion Sensor – e.g I have one from WirelessTag  (optional)
  • Some pieces of wood from your local DYO Store

(As Tools I used a hot glue gun, a saw and some screwdriver )


The mirror definitely gives an added value, but it’s really only for DYO’er or Nerds … No Enduser-Friendly product. It also needs maintenance.
This is a device for consume information but you cannot interact with your devices. Maybe in Some years possible with a “Touchscreen-Mirror”.

+ Added value in a Smart Home
+ Cheap
+ – Open Source (Open to integrate other things, improve code vs Security)
– Not an End-user product
– Needs Maintenance
– Only shows information, no interaction with devices

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