How do I receive data from Arduino to MIT?

[Ang_Han_Quan]

I am using an Arduino Uno board with a HC-05 Bluetooth module. How do I receive data from Arduino Uno to the MIT App inventor to display different messages on the app based on Arduino's reply? For example, pressing button 1 on Arduino will display message A on the app, while pressing button B on Arduino will display message B on the app.
Thank you.

[Juan_Antonio]

HC-05 Bluetooth. Arduino. Change baud rate 38400. Send random to app

Hello friends, To carry out applications with Bluetooth between Arduino and App Inventor, the HC-06 module is usually used. This module can only work as a client, enough for most of the projects that you will see in the tutorials, it is the most used and recommended. Default 9600. [bluetooth1] Another similar module is the HC-05, this can function as a server or a client. You may have to set the speed using AT commands to adapt it to App Inventor. It comes with 38400 baud and you will have t…