which classes to use in real time android app?

[Yaniv Sheinfeld]

I need to develop an app that will communicate with a device through serial connection. the app will constantly send and receive messages to the device .

I need some help to get started. which classes will I need to use here? any help will be appreciated as I'm a beginner

[Ulf Dittmer]

Welcome to the Ranch.

What kind of device is this? Most Android devices have USB connectors, but serial connectors are rare. My guess is that a library like https://github.com/mik3y/usb-serial-for-android or https://code.google.com/p/android-serialport-api/ would be involved.

[Yaniv Sheinfeld]

first of all thank you for the reply

the device is connected to the tablet with a usb connection (it will have some sort of adapter rs232 to usb).

the device will constantly send messages to the tablet through this connection and the tablet will alert when something happens .

just like a smartphone GPS is constantly receiving the car speed and alerts when say you are over the speed limit..