Stick your old phone or tablet on the arm of the sofa and you can use it as a remote control, especially if you have an Apple TV or Android TV box (where setup is pretty much instant). Otherwise ...

If you lose your Amazon Fire TV remote, you can use your old tablet as a replacement ... There are many automotive diagnostics apps for Android you can install on your device that can provide ...

there is a way to add this feature by transforming an old Android tablet that you might have lying around into a head unit that even works on older cars. You will need an Android phone to be used ...

First, the application. The Octo4a project lets you use an old Android phone as a 3D printer server, web interface, and even time-lapse camera to make those nice movies where the print seems to ...