![]() ![]() You can now save and restart our microcomputer. It turned out to be very easy, it was enough to find the configuration file config.txt in the / boot folder and add the line in These entries will turn off the screen saver completely and make Chromium run in the mode we set, launching the local page immediately in full-screen mode. The effective resolution is then 1080 x 1920 px. Screen rotation As the monitor screen is rotated from its normal position, it is necessary to flip it in the system. The author writes that it was the most problematic element of computer configuration. Some models are quite problematic to configure, but once launched, they should work flawlessly all the time. WiFi configuration The installation of a wireless USB WiFi adapter is highly dependent on the card used. The configuration can be played with impunity anywhere, but remember - if something goes wrong, it will be necessary to reinstall the system on the SD card, which as mentioned above - takes a lot of time. the command line / text terminal * Configure time zones so that the computer displays the correct time * Reserve 128 MB of RAM for the graphics processor in the advanced settings. In the configuration, you need to take care of the following things: * Make sure that the system will be loaded to the desktop and not to e.g. You can get to it at any time through the raspi-config command running with admin rights. After inserting the SD card into the system, the system will load, which allows you to log in and run the configuration wizard. After downloading the image, load it on the SD card, which unfortunately takes a lot. This OS is very flexible and has a lot of support for users. You need to configure the following in 'Raspberry': * Connection to a WiFi network * Screen rotation 90 degrees * Local web server for application presentation * Browser working in full screen mode The operating system chosen to control the Mirror is of course Raspbian. When the whole system is assembled, the Raspberry Pi - the heart of the Mirror - can be screwed into the housing. The author was looking for one that has the pinouts on the side. Most of the monitors had the connectors at the rear. Why is it so important? It's about the arrangement of the connectors. The author toured all the stores within 20 km of his home, often arousing security interest when he looked at the monitors, especially from the back and bottom. Now it was only necessary to find the right model. An additional advantage of using such a monitor is the fact that most cheap 24" monitors work natively at 1080p resolution - and this is what the author wants to use for displaying information. After making some adjustments and a few simple measurements, the author came to the conclusion that a 24 "monitor would be perfect for its use. When selecting a monitor, the author had to make many decisions: whether to be a new or used monitor what size monitor is needed how thin a monitor can be purchased how to place the control buttons of the monitor will the monitor be bright enough? As the monitor will be placed vertically (in portrait orientation, not horizontally as usual), the choice of monitor size was a factor in choosing its appropriate width, which translates into height in this arrangement. The second critical element of Magic Mirror is the monitor behind the mirror. ![]() Despite temporary problems, the author of the project has purchased the mirror and can continue assembling the Magic Mirror. Basically, such mirrors are used for peeking, so the associations are self-evident. The glazier from whom we buy them may have various insinuations as to the purpose of their purchase. Buying such a mirror is not as easy as it may seem. When the light is on in one of the rooms and it is dark in the other, the Venetian mirror allows you to look through them only in one direction. Venetian mirrors, often seen in films in interrogation scenes, work on the same principle. The mirror should be chosen so that when the monitor screen behind it is blank - black - behaves like a normal mirror, but when the monitor is lit, it allows you to view the displayed information as on the screen. Mirror In the described system, an ordinary mirror would not work, so you need to use another - translucent one. Let's follow the stages of the project in turn. Your own magic mirror! What is needed to build such a system? * Mirror * Thin monitor * Raspberry Pi * Some wood and paint for the case * A lot of free time. It was then that he had the idea to build a similar one, but better for himself. As he wandered from store to store, a mirror displaying inscriptions caught his attention. The author, while shopping with his girlfriend, had quite a lot of time to think and look around.
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