Project Android device screen on your laptop

Whenever you need to demonstrate something to everyone present in the classroom or meeting room, you connect the laptop with projector and project the laptop screen. This is simple, you either use RGB cable or HDMI port.

What if you have developed some Android application and want to demonstrate it to a large audience. There is no HDMI port in Android device.

Here is the solution.

Now you can project your android device's screen on your laptop which in turn can be projected on wall or a larger screen.

 

ADB  should be pre-installed in your system. USB debugging should be enabled from settings. 

1. Now download the jar file from http://droid-at-screen.org/download.html (version 1.1 worked for me).

2. Make sure you have Android SDK on the system you want to project on and debugging option enabled on the android device.

3. Connect your android device to the system using USB cable.

4. Navigate to the directory where jar file downloaded in step one is placed.

5. Make the jar file executable. 

chmod +777 filename.jar

6. Run the jar file - 

$ ./droidAtScreen-1.1.jar 

7. Now your Android device's screen should be visible on laptop.

If things doesn't go as expected, follow these steps -

run this command and see if your device is recognized by system -

$ sudo adb devices 

If no device is listed as the output, run the following command

$ sudo adb start-server

Now your device should be recognized by adb.