Times are changing faster and faster, and your devices are becoming outdated right before your eyes. And if you often update your mobile devices, then you probably have a whole collection of outdated smartphones and tablets. So the question arises - what to do with them?

Keep? This is how they take up space.

Throw it away? It's a pity.

Sell? So resellers will give mere pennies for them.

And since smartphones are still collecting dust, why not breathe into them? new life? Oddly enough, but your old Android devices can become a real gold mine. And I’m not talking about antiques at all, but something more practical.

So sit closer to the screen. Now you will learn as many as 16 ways to breathe new life into old Android devices.

But first, keep one thing in mind - a number of the tips listed below are limited by the version of the operating system you are using. You will need at least Android 2.2 and better than android 4.0. More detailed information can be found in the application descriptions on the Play Store.

Solution #1. Turn your device into a home media controller

Even if your gadget has reached its anniversary, it can still give you a lot of joy as a home controller for entertainment equipment. Moreover, the controller can be completely different:

1. The most banal thing. Turn your old tablet or smartphone into a small TV for coffee table. Just install Chromecast from Google on it and watch your favorite TV shows over WiFi. Some audio services also work with it, like Pandora or Google Play Music.
2. Turn it into a full-fledged home media server using the Plex program, thanks to which your device will be able to stream content to your TV. (Plex itself is free, but additional features become available with a subscription price of $4 per month).
3. Connect your device directly to your TV or stereo using special cables and/or adapters that will turn it into a kind of remote control remote control.
4. If you are interested in the last offer and have an infrared port on your phone, then try this application. You will have a universal remote control in your hands.

If your device does not have an IR port, do not despair. There are a number of applications that allow you to control a number of devices without an IR port. The only BUT is that, as a rule, they are tailored to a specific manufacturer.

Solution #2. Smart TV for your kitchen

Believe it or not, even such a veteran as the Motorola Xoom tablet is enough for this. Remove all unnecessary applications, add a function voice input, install a quick web search widget and a program for online viewing of TV programs on your desktop. Voila! Your smart kitchen TV is ready. And if you, in addition, download a recipe book and something like an Evernote diary, you will get a great tool for planning purchases for the whole family. This comes in handy when you have a lot of household members who often forget what they need to buy at the store.

Solution #3. Digital photo frame

Would you like an interactive photo frame for your desktop? Nothing could be simpler. Take an inexpensive frame, install your device in it, and a new toy is at your disposal.

The only thing you need is the Dayframe application, which allows you to connect your device to accounts on Instagram, Google+, Facebook and other sources of your latest photos.

Solution No. 4 Virtual window to distant countries

Tired of the usual view from the window? So why not let your old tablet or smartphone become your window to the far corners of the planet? Today this is possible thanks to applications like Webcams from EarthCam, which broadcast video streams from web cameras. These programs will give you access to images coming from cameras around the world in real time. See the Gothic Vatican, romantic Paris and sparkling New York. One click of a button and you'll find yourself somewhere you've never been before.

While browsing the web, you will find many similar cameras, including ones about animals. Look at them through, say, the San Diego Zoo Panda Cam or the SeaWorld Penguin Cam.

Last but not least are cameras monitoring the roads. You may even find ones installed on your street. You can get quite practical benefits from this. For example, check the weather without leaving your workplace.

Solution #5. Toy for a child

If your tablet is hopelessly outdated, then why not pass it on to your children, turning the gadget into a textbook and toy in one? And don't worry about kids breaking anything.

Tablets running Android 4.3 or higher have a “Restricted Profile” feature that protects the operating system from direct influence. Just go to “Settings”, then “Users” and “Add a user or profile”. Then select the “add limited profile” option, after which you will only have to create a list of allowed and prohibited applications, which will allow you to carefully control where your child will have access.

If your device was released a long time ago and only has Android 2.2, install the Zoodles Kid Mode application. It will allow you to set a convenient interface and set of applications to suit the age of your child. And the Child Lock feature allows you to restrict access to other applications. This application It's free, but you'll have to pay extra for additional features, like a timer that automatically turns off the device.

Solution #6. Smartphone CCTV camera

Surely, you have read the words of Edward Snowden that intelligence services are capable of turning almost any device connected to the Internet into a bug, or even into a hidden camera. So why don’t you break the Big Brother monopoly yourself and get a personal CCTV camera in your children’s room, office or apartment? Moreover, it is so easy. Simply download the IP Webcam app and follow the setup instructions. A couple of minutes and you will be able to see your entrance on the other side of the city through any browser.

Solution #7. Lab rabbit

I think everyone knows that Android is just a dream for computer geeks who don’t feed them bread, just let them dig deeper into the software. The Internet is full of various “look what my Android can do now!” videos. So why are you worse? Take this opportunity to take a look at your outdated Android from the inside. Install various applications with root access that will completely transform the old operating system. Or even more fun - completely tear down the system and install something new.

And don't be afraid that you are a beginner. There's a first time for everything. Moreover, the network is simply bursting with all kinds of advice for aspiring Android Overlords. And since old hardware is used, mistakes are forgivable. And perhaps the experience gained will help you work with your current phone.

Solution No. 8 Video communication station

Remember RoboCop? Good old sci-fi from the 80s? In this movie, the characters are very cool, the future is bleak, and there is a video phone on every desk. So why don't you get yourself such a device? Forget about 3/4G and the ubiquitous copper. You also have WiFi. Just install something like Google Hangouts or Skype on your gadget and get your personal video communicator. And then explain to your friends how it's done and enjoy realistic communication without leaving your home or office.

Solution #9. Make a game console.

Even very old Android devices can run many great games without any problems. If you don't believe me, check the Play Store. And if you wish, download an emulator of your favorite console onto your tablet or smartphone. For example, AndroGens for SegaMega Drive. Well, for complete immersion, buy a universal game controller for Android. In one word - Have fun!

Solution #10. Electronic reader

Why not get a good e-reader without all the extra bells and whistles? Install Google Play Books on your old device. Amazon Kindle or Pocket. And your pocket library is ready. And be sure to turn off all data services, or even better, put the device in airplane mode. This will save a lot of energy and prolong your reading pleasure.

Solution #11. Music center for your car

Tired of the standard CD drive in your car that spits out discs? Send him on indefinite leave and install an old tablet in his place. Minimal modifications will be required: just power it to the cigarette lighter through a regular adapter and connect stereo speakers to it via Bluetooth or a 3.5mm plug from the headset. And now, the new audio center is ready. And if you also install a good music player, then you will have access to not only mp3 files, but also higher quality ones. For example, FLAC.

Solution #12. Cool alarm clock or desk calendar

Still using a Chinese alarm clock? It’s better to give it to your grandmother and use your old smartphone on an elegant stand. Apps like Timely Alarm Clock turn your smartphone into a modern alarm clock.

If your gadget has Android 4.2 or higher, then you can use something like Beautiful Widgets. In addition to its alarm functions, this app will delight you with a charming screen that can be customized to your liking, as well as an interactive weather forecast when unlocked.

Both of these apps have a "night mode" that dims the screen brightness when the screensaver is running. But as soon as you touch it, the screen will shine again at full power.

You can also turn your device into an excellent electronic calendar that will look good at your workplace. Simply, use a calendar application. We advise you to pay attention to Cal: Any.do. This application will replace not only your calendar, but also your diary.

Solution #13 Laptop touchpad

Are you annoyed by the small touchpad on your laptop? Yes, and it is located inconveniently - you constantly touch it with your fingers. So why not use your old smartphone and get a wireless touchpad for your laptop. All you need is WiFi and the Gmote app. 2.0. Just install it on your device, configure it according to the instructions, set a password and... that's it. You have the real one in your hands remote control for your laptop. This is very convenient, especially when you often deal with presentations.

Solution #14. Save it for an emergency

Even from a locked phone without a SIM card, you can call emergency services anywhere in the world. Therefore, when going on a trip, charge your old phone and put it in your travel bag. In an emergency, your main phone may die. And then, it is your old man who will come to the rescue.

Solution #15. Exchange for something new

Oddly enough, this is quite possible. Now in many large cities there are special points for exchanging old mobile phones for new ones. Of course, with an extra charge. But it still turns out cheaper than buying a new one from scratch. Moreover, large retail chains Similar promotions are carried out periodically.

Well, if you don’t have anything like this in your city, turn to the World Wide Web for help.

Solution #16. Give

There will always be those who actually collect unnecessary things for those in need. For example, this is how I tore my favorite Sony PlayStation console from my heart in favor of children from families with limited financial resources. Surf social networks. There you will definitely find trustworthy groups like “Give It Free.” And then, your old “phone” will start a new life and bring a lot of joy to another person who needs it more.

Smartphones and tablets have been around for years, which means you may have gone through several generations of devices. More and more outdated models are collected in desk drawers, which are usually of no use, they only take up space and collect dust.

However, a practical person can find a use for them. An Android device, regardless of age, has considerable potential, so you can breathe new life into them. Tips on how to do this are given below.

1. Wireless trackpad and joystick for computer

At correct selection software and a few minutes of setup, you can turn your old Android device into a controller for controlling Windows, Linux, or macOS computers.

You'll need an app called Unified Remote and a connection via Wi-Fi or Bluetooth. Free version The application allows you to control the mouse and keyboard, playback of multimedia content and power-related commands. Full version costs $4 and add individual elements controls for each program and other advanced features.

You need to download the server software for a computer, after which the device will be ready to work as a wireless controller.

2. Remote computer terminal

If you want to access your home computer from other locations, an old Android smartphone or tablet can help. Through its screen you will see your computer screen.

The easiest way to do this is to use a free program Google Chrome Remote Desktop, which works with Windows systems, Linux, Chrome OS and macOS. Install the Chrome Remote Desktop app in your computer's browser and follow the instructions to establish a connection. You can only connect to devices where you are logged in to the same account. Google entry. For security purposes, you will need to create a PIN code.

Once this is done, install a companion application on your Android device, through which you can connect to your computer's desktop using a PIN code.

3. Universal remote control

Even the oldest Android devices have enough power to act as a remote control at home or work. This will allow you to manage various devices and multimedia components without special devices and free up your main smartphone, which will be useful for other things.

First download to your old smartphone or tablet required applications, such as Nest, Hue, etc. Add tools that allow you to manage audio and video streams. There are several ways:

• Connect your smartphone or tablet using the Google Chromecast keychain. You can then keep the old devices on your desk and use them as a hub to wirelessly control content, like YouTube videos, to be displayed on your TV screen.
• Install an application that turns your Android device into a remote control for your TV, set-top box, or DVD player. If your mobile device has an infrared sensor, it may have its own programmable application or use the Smart IR Remote program. If infrared sensor no, look in the store Google Play Store certain management programs. Panasonic, Sony, DirectTV, Android TV, etc. have such programs.
• Create a complete media server with Plex, then use your old devices as a remote control to stream local content to your TV. The media server is free, although subscriptions are available for $5 per month, $40 per year, and $120 forever.

4. Scientific research

Old, clunky Android devices can contribute to world science by helping to predict earthquakes and find cures for diseases. All this can be done through a program at the University of California at Berkeley called BOINC.

You need to download the free application, select the project you like and configure the device to work with it. As long as the device is turned on, plugged in and has access to Wi-Fi, scientists from different institutions will be able to use its computing capabilities to analyze data. More information about BOINC projects can be found on Wikipedia. One thing to keep in mind is that your electricity bills may rise.

5. Security camera

Who needs fancy surveillance cameras when you have an unnecessary old Android smartphone. Using third-party apps, the camera on your device allows you to monitor your home, office, or anywhere else. There may even be advanced features like video recording and motion detection.

Download the free IP Webcam app or the $3.99 Pro version and follow the instructions. Then you can watch through the device’s camera and any compatible browser.

6. Video conferencing station

Set up your old Android device with your choice of video chat app: Skype, Hangouts Meet, Google Duo, or more. Place it in the docking station on your desk and have a permanent hotspot for meetings at work and with friends.

If you have enough old smartphones and tablets, you can create a video conferencing system for an entire office. Each device must be assigned to a separate account by account name or user name.

7. Kitchen command center

Old devices will come in handy not only in the office, but also in the kitchen. You need to use a third-party launcher like Action Launcher or Nova Launcher to simplify your home screen and add simple gestures like double-tapping anywhere on the screen to launch Android voice search. This allows you to operate devices hands-free. More modern devices Support voice activation and Google Assistant.

Next, you need to place the right apps on your home screen. Netflix (relevant for the USA) and other video streaming services will turn the tablet into a TV with a cooking channel. Recipe apps can be helpful, as can cloud-connected note-taking services such as Google Keep, Evernote, or OneNote. Through them you can quickly view own recipes and edit shopping lists with synchronization for other family members to see.

8. Expanding cellular capabilities

When using Google Project Fi (which is not relevant for Russia) as a wireless service for your current smartphone, you can take advantage of a small little-known bonus: get an additional SIM card with the ability to send traffic to other devices without overpaying.

You need to order a card on the Project Fi website, install it in an old smartphone or tablet, if it has a connector, and the device will have online access. You need to pay for the data consumed by the device per month, as in a regular Fi tariff plan, so the auxiliary device will complement the main one.

This opens up a number of interesting possibilities: the old smartphone can be used if the new one is lost, broken or discharged; you can make it an access point so as not to drain the battery of your main smartphone; give to children; make and receive calls through the main or alternative number.

9. Window to the world

You don't have best view from an office or apartment window? Make your old Android device show more interesting landscapes.

First, install the EarthCam Webcams app from the Play Store. Here you can access live broadcasts from cameras from all over the world. Select the one you want and click on the full-screen broadcast icon.

There are quite a few cameras online specifically for mobile devices. Launch your browser and find the appropriate view.

10. Digital photo frame

Nobody wants to lose valuable memories. Buy an inexpensive stand, plug your tablet into the charger, and turn it into a photo frame with cloud access for your home or office.

If you use Google Photos, open the app, click on any photo in your main library or album, and click on the three dots button in the upper right corner, selecting Slideshow. The program will scroll through all available photos, so in your spare time you can indulge in memories.

11. E-book

Turn off notifications from Gmail and other annoying apps; you can even switch to airplane mode and read without any distractions.

12. Desk calendar

You can place the device on the table instead of a calendar. Will do pre-installed application Google Calendar with productivity-oriented elements is also good free program Cal from Any.do with a rich graphical interface.

13. Vehicle command center

Eliminate smartphone distractions in the car by turning your older model into an always-on command center. Find a convenient holder and secure it in a safe place. Connect it to your car's jack and to your stereo speakers (via Bluetooth or 3.5mm headphone jack). Then you can use your main smartphone as a network access point or download music and maps in advance for navigation to the device via Wi-Fi.

Put Android app Auto and get a simple interface with large buttons and voice commands.

14. Educational tool for children

An old tablet may seem old to you, but by technological standards it is still quite good, so you can give it to your children for learning and education.

Tablets running Android 4.3 and later have a Restricted Profile feature. Open Settings > Users > Add user.

Select to add a restricted profile. You will be prompted to connect or disable access to each installed application, which will make it possible to choose which programs children can use.

If your older device is running Android 7.0 or later (unlikely), Google Family Link will give you more controls, including time limits and daily activity reports. The program is currently available by invitation only; You can try to get an invitation on the Family Link website.

15. Electronic watch

Want to know the time? Old smartphone The dock can display a customizable clock on your desktop or nightstand. The Google Clock app is excellent option for starters, especially if you want to set an alarm. Look at the "Screen Saver" option under "Display" in Settings operating system to automatically show the clock when you plug your device into a power outlet.

For even more visual appeal, install the free Timely app, which has not been developed since it was acquired by Google in 2014, but continues to offer quite a lot of advanced functionality.

16. Gaming device

Put your briefcase aside and relax while playing. An old Android device is suitable for those who are not the most demanding in terms of graphics and games.

To turn it into a gaming device, search the Play Store necessary games, you can also download an emulator for game consoles and connect joysticks.

17. Emergency device

Any smartphone is capable of calling emergency services, even if it is not connected to a cellular network. Store old device charged in a car or in a bag; if something bad happens and your current smartphone is dead or inaccessible, you will still be able to call an ambulance, the police, etc.

18. Test device

Android is a computer enthusiast's dream. Typically the system can be hacked (rooted) relatively easily to gain access to full list opportunities. When this is done, you can install additional applications and completely change the operating system firmware with other functions and additional settings.

However, this increases the risk of breaking something. If you experiment like this with your main smartphone or tablet, there is a chance of depriving them of their functionality, and in addition, rooting usually voids the device’s warranty.

All this is not scary on an old device. Try your hacking skills on it; To find out how to root, search the Internet for the model name and version of the Android operating system. There is a huge community of Android enthusiasts on the Internet, so you will surely find useful guides for your device.

19. Sell it

The simplest option. What is old to you is new to someone else. For such sales in our country there is a popular Avito website. There you can see what devices other sellers are offering and at what price.

Before selling, please reset your device to factory settings. You also need to remove the memory card, if installed.

20. Give it as a gift

Do you feel generous? You can give the device to friends, relatives, or post an ad on the Internet. You can also look for a charitable organization orphanage etc.

Due to the constant decline in the cost of cell phones and regular appearance New models of almost everyone can find several unused cell phones varying degrees obsolescence. If the phone, although outdated, is in good working order, then you can make some kind of remote notification system out of it, for example, a GSM alarm or GSM microphone. It’s another matter if you received the device incompletely or completely in the form of debris.

It seems that nothing useful can be extracted from such a device, but this is not the case. It's natural to shoot for reuse SMD elements are completely irrational. But anyone cell phone has a vibration motor.

Vibration motor

A vibration motor can be used in different ways; in the simplest case, it can become the main part of a simple vibration robot. The basis of such a robot is a board made of foil fiberglass, approximately 40 x 10 mm in size.

Two holes are made in the board, one for installing the battery, the other for the eccentric of the vibration motor. In essence, the board consists of two supply conductors from the power source to the vibration motor terminals.

On the bottom side, “legs” made of some elastic material, for example, foamed polymer (polyurethane foam, microporous rubber, etc.), are glued to the “body” of the robot.

The vibration motor is fixed using epoxy plasticine.

The contacts for the battery are made of brass foil.

Thus, we get the simplest design, which, due to the unequal height of its supports, unevenness and slope of the surface, will write out intricate trajectories. However, the vibration robot can be made more complex, for example, made to follow a line.

LCD screen

In addition to the vibration motor, you can use a liquid crystal screen. Find technical documentation on this particular screen may be difficult. But due to the peculiarities of the physics of operation, any liquid crystal screen has films that polarize light.

Polarization of light is a phenomenon that proves that electromagnetic (and, as a special case, light) waves are transverse, i.e., the vectors characterizing the electric and magnetic components of an electromagnetic wave are always directed perpendicular to the direction of propagation of the wave. An example of mechanical transverse waves are waves on the surface of water, where the liquid oscillates up and down, while the wave propagates horizontally. Without going into the physics of wave phenomena, I will simply note that in addition to transverse waves, there are longitudinal waves, an example of which is sound waves. IN longitudinal waves particles oscillate along the direction of wave propagation. However, you can read about all this in a good physics textbook, or at least here.

Now it is important for us that the coating of the liquid crystal screen can polarize light, i.e. From all possible electromagnetic oscillations, select only waves oriented in a certain way. Thus, the polarizer immediately weakens natural light by half.

After passing through the polarizer, only waves oscillating in a certain plane remained in the light beam. Now, if you place another polarizing film on the path of the light beam (it is called an analyzer), then by changing the mutual orientation of the polarizer and analyzer, you can smoothly change the brightness of the light beam. On last photo the light source is not completely extinguished, which indicates incomplete polarization of the light. The laser beam is initially fully polarized, so no analyzer is needed to change its brightness. Regarding practical application of this phenomenon, they are quite diverse. For example, reflected light is almost always partially polarized, so wearing polarized glasses or a polarizing filter on a camera lens greatly reduces glare.

Literature

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11. https://ru.wikipedia.org/wiki/Wave_polarization

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