In this tutorial we will see how to turn on the smartphone torch using the Arduino board.
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.
For the assembly you can see the following article:
Here is the program that allows you to connect the Arduino board to the smartphone and send a message containing the order to turn on the smartphone torch.
const int btnPin = A0; //the push button is connected to pin A0 of the Adruino
int btnVal = 0;
if(btnVal<200) // We press the push button
hc06.print("allumer"); //send message to smartphone
hc06.print("eteindre"); //send message to smartphone
We are going to create a mobile application named ‘allumer_torche_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:
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: