Transform a phone to a keyboard, touchpad or mouse, with MouseServer
MouseServer lets you control your PC or play a game using your smartphone as a keyboard, mouse or touchpad. The program is free, light and safe. To achieve this you need to have two apps, one installed in your PC and another one in your phone.
MouseServer provides a password and displays the IP address of your computer to let you make a connection of your phone to the PC.
When connection is established you can use your phone to control your PC as if you had a mouse, a gestures touchpad or a keyboard.
You may know about dedicated devices such as small keyboards with a touchpad that are able to control a PC. Now you can transform your phone to such a device.