Mirror Windows Desktop on Android Tablet Screen

please i don't have funds please help Mirror Windows Desktop on Android Tablet Screen (and Conversely) At this project I want to create two applications: Windows application And Android application. By these applications I want to see specific region at windows desktop on android screen, also I want to see android screen on windows desktop. Some similar programs are available such as : iDisplay and Vysor Tablet and Windows are connected by USB cable and USB Tethering mode is activated on Tablet. By activating the USB Tethering on Tablet, both sides (Tablet and Windows) make a local network. At windows side some orders such as : Turn on (or off) the sim1 data, Turn on (or off) the sim2 data ,Turn on (or off) wifi, Take a photo or record video & …. are created by saving a text file. For instance at specific folder I save a text file with this content: Turnon#Date#1 Android application must read this text file and run the order. If you have any question please contact me. Cheers