Create FreeTAKUAS.md

Author: brothercorvo

docs/docs/tools/FreeTAKUAS.md

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+![freeTAKUAS_Logo](https://user-images.githubusercontent.com/60719165/124395705-edc52180-dcdb-11eb-879b-725d486eaa43.png)
+
+# Introduction
+FreeTAK UAS (FTUAS) is an Android application that can:
+* control any DJI drone supported by the current DJI SDK
+* Stream the position of the drone to all the connected TAK clients
+* Stream the video Feed to all the connected TAK clients
+
+# Requirements
+* FreeTAK UAS app
+* DJI compatible drone
+* FTS v 1.9 (or better): the application will NOT support the legacy TAK server.
+* the FTS REST API service must be activated
+* You have a valid REST Token (created in the FTS UI under System User) 
+* FTH Video Service (or compatible RTMP server) if you want to stream live videos
+
+# Installation
+Assuming that you have installed and configured your [FTS](https://freetakteam.github.io/FreeTAKServer-User-Docs/Installation/PyPi/Linux/Install.html) and the  [video service](https://github.com/FreeTAKTeam/FreeTAKHub/blob/main/README.md), download the APK installation file on your phone / tablet and follow the instructions.
+if the installation is suvcessful you should have a new Icon
+
+![image](https://user-images.githubusercontent.com/60719165/124396013-9d4ec380-dcdd-11eb-8cf9-bf1deaa7adc0.png)
+
+
+# Usage
+
+## Connection
+![image](https://user-images.githubusercontent.com/60719165/124395573-3e884a80-dcdb-11eb-8a89-9f6b4a8df202.png)
+* start your drone
+* start your controller
+* connect the phone with FTUAS to the controller
+* a popup will ask wich application you want to open
+* select FTUAS and configure the following:
+  * FTS IP and Port
+  * Video Server IP and port
+  * the Drone name
+  * Now click on UAS [READY]
+
+## Interface
+![image](https://user-images.githubusercontent.com/60719165/124395601-64155400-dcdb-11eb-8142-67e14c08d712.png)
+the FTUAS interface is typical of DJI the following is special:
+* As soon you switch to it  the drone will start streaming the camera
+* As soon you switch to it the drone will share his position with the FTS server, that will foward to all the connected clients
+* the "Red Dot" in the middle can be tappped to create a geoObject of type "Unknow" call target and send to all the connected clients 
+* the vertical aim of the "Red Dot" can be changed by moving the gimbal
+* in some model, it's also possible to aim the gimbal independent from the position of the drone by dragging the position on screen
+* In the current version, the aim is not perfect so expect some delta
+
+## ATAK Interface
+### Map
+![image](https://user-images.githubusercontent.com/60719165/124395620-77c0ba80-dcdb-11eb-88dd-f3eac3468962.png)
+In ATAK the drone shows:
+* a white zone (field of view)
+* a Sensor Point of Interest (SPI)
+* the position and name of the drone
+
+### Menu
+![image](https://user-images.githubusercontent.com/60719165/124395651-9fb01e00-dcdb-11eb-892f-20e3eb8a3484.png)
+to visualize the video tap the drone's icon and then the video icon
+
+### Video Player
+![image](https://user-images.githubusercontent.com/60719165/124395672-be161980-dcdb-11eb-9aea-162bd605080e.png)
+In alternative open the ATAK video player and search for the name of your drone
+
+NOTICE: in the current version, every time a new video endpoint will be created, this must be manually deleted. 
+
+