Poor man's smart mirror

By covering a computer display with a mirror foil or a two way mirror you can make a smart mirror - a mirror where you can both look at yourself and get an update from the attached computer. This is typically used to give updates on weather, news, calendar and so on. I have wanted to have one for some time, but the obvious location in the main bathroom has a mirror that is glued to the wall.

Since I am not about to remodel the bathroom or move to a new one, I thought I should look into other ways of achieving a similar effect, while leaving the mirror unharmed. My solution was to combine a unused 4:3 Dell display and a Raspberry Pi single-board computer, and place this so that I could see the computer display's mirror image when I stood in front of the regular mirror.


The application I tried was Michael Teeuw's Magic Mirror. It turned out that my myopia meant that I needed big letters to be able to read easily via the mirror, so some playing around with the configuration was needed. And of course I needed to force the computer to render a mirrored image on the display. The Raspberry Pi can do that, although not as easily as one could hope!

The result is shown in the image on the right. Due partly to WAF the installation did not become permanent. But I am intrigued by the prospect of adding some software for facial recognition and make the display switch dynamically between the mirrored and the normal display, depending on which way the viewer is looking. But since the Rapberry Pi needs a reboot to switch display configuration, I will need computer that implements the RandR protocol to do this.

Actually, there are a number of features that can be designed around such a platform, and an important angle is so called welfare technology - technology that is aimed at helping for example elderly stay at home instead of being taken into care. When I get older I expect that such solutions can help me take my medication, monitor my physical fitness, remind me about appointments and so on.   
  

Urban development of my local community

My local municipality is struggling with getting the population to accept that the future needs to be planned. Population growth in general, and our closeness to Oslo in particular bears promise that we will be a popular place to live - if we succeed at combining the demands of urban living with good services like public transport and schools.

Years ago I came across a map from 1914 over the area, called "Fet - rektangel 15C" in mappese. The image on the right shows the place where I live, with surroundings. Already a hundred years ago the area was industrialized, but now the major employer is a shopping center. An up-to-date birds view is available in Google Maps, while the Norwegian Mapping Authority has a 1883 version of "Fet - rektangel 15C" here.
The black lines in the map are railroad tracks, and the local industry even produced railroad cars and locomotives. So rail is deeply rooted in the local culture, but should that keep us from getting better solutions?

So what will this area look like in the future - will the development be linear or exponential? One question I find interesting is whether the railway will continue to be the backbone of local transport or whether Bus Rapid Transit will take over. In my opinion rail is OK for people living along the line, but once you live some distance away the hassle of getting to and from the train benefits the use of cars. And that may not be future proof. As I understand, the local transport authority is replacing a system of direct bus lines with using buses to feed passengers to the trains. And it doesn't work too good. Maybe it would be better to use the area set aside for tracks for a BRT system. If this works for growing economies in the New World, then it could work for us as well.

Whether buses or trains make the needs for transport scale into the future remains to be seen. But the future also requires homes for the growing population. That is a more sensitive topic for the community. A significant number of people live in their own houses, with a garage and a garden. This needs a lot of space and makes it difficult for everybody to be close to transportation services. So the politicians want to build high rise buildings for more efficient housing. But the people don't like the prospect of having their view polluted by human constructs. So suddenly the politicians turned around, maybe because we are having a local election later this year!

The Drywood picture

Last year we changed the color of our house. Originally it was painted red with yellow frames around windows etc. But last year we concluded that we were ready for a change.

Part of the story has been covered already, but there is more! Because the Norwegian representative for the Dutch Drywood paint arranged a photo competition. They asked their customers to submit pictures of their use of Drywood paint, and the winner would receive a stay at a spa resort for two.

I felt that we deserved to win so I submitted the picture on the right. It shows my wife standing on stacks of empty paint cans while pretending to paint. Compared with the other entries I saw I felt pretty confident, but in a show of strength I added a Limerick:

Byggfruen vil gjerne på spa
Hun sier til utførende da
Du får stable opp spann
Så jeg male litt kan
Slik at jeg æren kan ta

Google Translate fails at making a good translation. Norwegian words like "byggfruen" and "utførende" combined with rhyme is not trivial.

Of course we won, and she invited her sister along. This was during the schools' autumn break, so I won quality time with the kids.

Øystein's Twine

My house is partially heated by circulating water in the floors, and this hot water is generated by a heat pump. This pump, the hot water tank and the rest of the distribution system is meant to require minimal attention. But when I found myself looking for a target for my Twine, I found that monitoring the heat pump allowed me to maximize my use of its sensors.

Embedded in the Twine there are sensors for temperature, vibration and the device's own orientation. To this I added a moisture sensor, so that I can monitor:

• the temperature of the water pump
• the vibration of the water pump
• any water released to control the pressure in the system

Before activating the Twine I had to rely on observing the heat pump to get its status. As I frequently have business in the basement this was no big problem, but I had to be at home. With the addition of the Twine I can now get the status over the Internet, whether I was elsewhere in the house or somewhere with Internet access.

Access to the Twine goes via the services of Supermechanical, so I depend on they staying in business for the setup to work.

By the way, the use of solutions like Twine is included in the concept of Welfare technology, applied to finding ways to reduce the burden of the elderly boom that is expected in the future.