Spacedesk is a multi-display program that lets you use an Android screen as a secondary display for your computer. To make it work, you'll need to install the spacedesk server on your computer (Windows 32 and 64-bit) and the spacedesk client on your mobile device (Android, iOS, Windows, and Web). Both devices must be connected locally over Wi-Fi, LAN, or USB and support the TCP/IP network protocol. You can duplicate, extend, or connect multiple screens, whether they're computers, mobile devices, or Chromebooks.
Use your Android as a second screen
First, you'll need to install the spacedesk server on your Windows computer. Then, install the spacedesk client on a mobile device. After that, make sure both devices are connected locally. The easiest way to connect them is via a USB cable or wireless LAN (same network/Wi-Fi).
At this point, you'll need to open Spacedesk on Windows. There you'll see the computer name, the connection status, and the version of the spacedesk driver. At the bottom, in separate tabs, you'll find the local network interface and network connections.
Now, go to your mobile device and open Spacedesk. You'll see your computer in the utility's interface. When you select it, the screen will extend automatically (the phone acts as a secondary display).
If you need to change the screen settings, you can do so from Windows settings. The phone's screen supports touch input, so you can replace the mouse.
Spacedesk's feature for extending your computer's screen with a mobile device is really very good. The service is similar to Sidecar in Mac OS X, but without encryption on the transmission, so we recommend not using it on public networks.
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