Creating an application on the android based smartphone device requires some kind of programming facility. It is decided for this project, the program App Inventor is used. This App inventor is a web based platform by Massachusetts Institute of technology which allows public users to make and bake their own application for their smartphone device. Basically this web interface provides relevant tools to create an application from scratch such as a main screen to decide how the application will look like. This initially empty screen is then filled out with buttons, links, interactive controls and etc. to provide interaction with user. The programming is for setting up everything together is done through block programming method. When everything is completed the created application can be uploaded straight to the smartphone device for testing. It is identified that there is a specific tool in the App inventor that specialized on making an application for robotic related integration.
The basic mainframe of the control application for this project is having joystick controls and buttons on the screen similar to the transmitter device. These joysticks and buttons can be operated through touch detection on the screen. In addition to that the application should be able to detect inputs from the accelerometer when tilting the device. This motion detection will then be used for controlling the drone. Finally, the application will have Bluetooth connection mechanism so that the smartphone will be connected to a corresponding Bluetooth module while running the application.
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