Send and Receive HEX String using USB to Serial Adapter -- 2

This Android application should enable an Android CPU to communicate with a Robot Controller board. To achieve that, a simple application is to be developed which can send and receive HEX strings using USB to Serial Adapter connected with an Android Development Board. The application should be able to: 1. Detect the connected USB Adapter. 2. Set Baud Rate (one of the following: 115200, 625000, 1250000) 3. Send entered HEX String in text box, when a button is pressed (To the Robot Controller Board, via USB to Serial Adapter). 4. Show the received HEX String (From the Robot Controller Board). Following image files have been added: 1. A diagram of the system 2. Application layout