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App Inventor Arduino I2C LCD 1602 Display

Send a message from Arduino to smartphone

Purpose of this tutorial:

In this tutorial we will see how to send a message from the Arduino board to the smarthpone via bluetooth. This is why we are going to create two programs: a mobile application with App Inventor for the smartphone and a program for the Arduino board.

Necessary Components

  • Arduino
  • Smartphone
  • HC-06 Bluetooth
  • Push Button
  • Test plateC

  • Connecting wires

 

Mounting

Program

Here is the program that allows you to connect the Arduino card to the smartphone and send a message by bluetooth: if you press the push button, you send the word ‘Hi my name is Arduino card’ to the smartphone.

Creation of the application with App Inventor:

We create a mobile application named ‘receive_arduino’ with App Inventor which allows you to receive a message from the Arduino board.

We propose to create the design of the application, with the following visual:

Programming with App Inventor

To program the application, App Inventor offers us to use the Blocks space, which allows you to create a program in the form of a block diagram. Very easy to use but requiring a little programming logic.

Here is the program of the application created in the Blocks area of ​​the Inventor App:




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