Return Arduino Console in Android Studio APP

shyriu42 · Jan 12, 2021

Hello I tried to create an android application to drive led strips, I got an Android studio project that I modified to achieve my goals. Which works pretty well. I would like to be able to display what the console of an arduino nano returns to me in a textView.

Code (Javascript):

TextView textViewData=findViewById(R.id.TextViewData);

textViewData.setText(Reception);

but all my trying to include code with InputStream inputStream; do not work, the application crashes or freezes.
Could someone help me because I have no knowledge of Java I managed to do this with intuition and probably a lot of luck.

thanks in advance.

Code (Javascript):

package com.pegase.sapin;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.view.Menu;

import android.view.MenuItem;

import android.bluetooth.BluetoothSocket;

import android.content.Intent;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

import android.widget.Toast;

import android.app.ProgressDialog;

import android.bluetooth.BluetoothAdapter;

import android.bluetooth.BluetoothDevice;

import android.os.AsyncTask;

import android.widget.SeekBar;

import android.widget.ToggleButton;

import android.widget.EditText;

import android.widget.SeekBar.OnSeekBarChangeListener;

import java.io.InputStream;

import java.io.OutputStream;

import java.io.IOException;

import java.util.UUID;

public class SapinControl extends AppCompatActivity {

SeekBar Volume;

SeekBar Ring1VitesseSeekBar;

SeekBar Ring2VitesseSeekBar;

SeekBar Ring3VitesseSeekBar;

SeekBar Ring4VitesseSeekBar;

SeekBar Ring1LumiereSeekBar;

SeekBar Ring2LumiereSeekBar;

SeekBar Ring3LumiereSeekBar;

SeekBar Ring4LumiereSeekBar;

EditText editText;

Button sendButton;

Button btn, btn2, btn3, btn4, btn5, btn6, btn7, btn8, btn9, btn10, btn11, btn12, btn13, btn14, btn15, btn16, btn17, btn18, btn19, btn20, btn21, btn22, btn23, btn24, btnDis;

ToggleButton simpleToggleButton1, simpleToggleButton2, simpleToggleButton3, simpleToggleButton4;

String address = null;

private ProgressDialog progress;

BluetoothAdapter myBluetooth = null;

BluetoothSocket btSocket = null;

private boolean isBtConnected = false;

//SPP UUID. Look for it

static final UUID myUUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

Intent newint = getIntent();

address = newint.getStringExtra(DeviceList.EXTRA_ADDRESS); //receive the address of the bluetooth device

//view of the ledControl

setContentView(R.layout.activity_sapin_control);

//call the widgtes

btn = (Button) findViewById(R.id.Button);

btn2 = (Button) findViewById(R.id.Button2);

btn3 = (Button) findViewById(R.id.Button3);

btn4 = (Button) findViewById(R.id.Button4);

btn5 = (Button) findViewById(R.id.Button5);

btn6 = (Button) findViewById(R.id.Button6);

btn7 = (Button) findViewById(R.id.Button7);

btn8 = (Button) findViewById(R.id.Button8);

btn9 = (Button) findViewById(R.id.Button9);

btn10 = (Button) findViewById(R.id.Button10);

btn11 = (Button) findViewById(R.id.Button11);

btn12 = (Button) findViewById(R.id.Button12);

btn13 = (Button) findViewById(R.id.Button13);

btn14 = (Button) findViewById(R.id.Button14);

btn15 = (Button) findViewById(R.id.Button15);

btn16 = (Button) findViewById(R.id.Button16);

btn17 = (Button) findViewById(R.id.Button17);

btn18 = (Button) findViewById(R.id.Button18);

btn19 = (Button) findViewById(R.id.Button19);

btn20 = (Button) findViewById(R.id.Button20);

btn21 = (Button) findViewById(R.id.Button21);

btn22 = (Button) findViewById(R.id.Button22);

btn23 = (Button) findViewById(R.id.Button23);

btn24 = (Button) findViewById(R.id.Button24);

btnDis = (Button) findViewById(R.id.Button30);

// initiate toggle button

//toggle button W wheelcolor

simpleToggleButton1 = (ToggleButton) findViewById(R.id.simpleToggleButton1);

simpleToggleButton2 = (ToggleButton) findViewById(R.id.simpleToggleButton2);

simpleToggleButton3 = (ToggleButton) findViewById(R.id.simpleToggleButton3);

simpleToggleButton4 = (ToggleButton) findViewById(R.id.simpleToggleButton4);

//Vitesse et lumiere

Ring1VitesseSeekBar = (SeekBar) findViewById(R.id.Ring1SpeedSeekBar);

Ring2VitesseSeekBar = (SeekBar) findViewById(R.id.Ring2SpeedSeekBar);

Ring3VitesseSeekBar = (SeekBar) findViewById(R.id.Ring3SpeedSeekBar);

Ring4VitesseSeekBar = (SeekBar) findViewById(R.id.Ring4SpeedSeekBar);

Ring1LumiereSeekBar = (SeekBar) findViewById(R.id.Ring1BrightSeekBar);

Ring2LumiereSeekBar = (SeekBar) findViewById(R.id.Ring2BrightSeekBar);

Ring3LumiereSeekBar = (SeekBar) findViewById(R.id.Ring3BrightSeekBar);

Ring4LumiereSeekBar = (SeekBar) findViewById(R.id.Ring4BrightSeekBar);

//Volume MP3

Volume = (SeekBar) findViewById(R.id.VolumeseekBar);

new ConnectBT().execute(); //Call the class to connect

//commands to be sent to bluetooth

btn.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 1 1" + "\r\n";

SendMessage(message);

}

});

btn2.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 1 2" + "\r\n";

SendMessage(message);

}

});

btn3.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 1 3" + "\r\n";

SendMessage(message);

}

});

btn4.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 1 4" + "\r\n";

SendMessage(message);

}

});

btn5.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 1 5" + "\r\n";

SendMessage(message);

}

});

btn6.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 2 1" + "\r\n";

SendMessage(message);

}

});

btn7.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 2 2" + "\r\n";

SendMessage(message);

}

});

btn8.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 2 3" + "\r\n";

SendMessage(message);

}

});

btn9.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 2 4" + "\r\n";

SendMessage(message);

}

});

btn10.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 2 5" + "\r\n";

SendMessage(message);

}

});

btn11.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 3 1" + "\r\n";

SendMessage(message);

}

});

btn12.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 3 2" + "\r\n";

SendMessage(message);

}

});

btn13.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 3 3" + "\r\n";

SendMessage(message);

}

});

btn14.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 3 4" + "\r\n";

SendMessage(message);

}

});

btn15.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 3 5" + "\r\n";

SendMessage(message);

}

});

btn16.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 4 1" + "\r\n";

SendMessage(message);

}

});

btn17.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 4 2" + "\r\n";

SendMessage(message);

}

});

btn18.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 4 3" + "\r\n";

SendMessage(message);

}

});

btn19.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 4 4" + "\r\n";

SendMessage(message);

}

});

btn20.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "P 4 5" + "\r\n";

SendMessage(message);

}

});

btn21.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "ON" + "\r\n";

SendMessage(message);

}

});

btn22.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "OFF" + "\r\n";

SendMessage(message);

}

});

btn23.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "D" + "\r\n";

SendMessage(message);

}

});

btn24.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String message = "E" + "\r\n";

SendMessage(message);

}

});

sendButton = (Button) findViewById(R.id.simpleToggleButton1);

sendButton.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

String message = "W 1 " + simpleToggleButton1.getText() + "\r\n";

//Toast.makeText(getApplicationContext(), status, Toast.LENGTH_SHORT).show(); // display the current state of toggle button's

SendMessage(message);

}

});

sendButton = (Button) findViewById(R.id.simpleToggleButton2);

sendButton.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

String message = "W 2 " + simpleToggleButton2.getText() + "\r\n";

//Toast.makeText(getApplicationContext(), status, Toast.LENGTH_SHORT).show(); // display the current state of toggle button's

SendMessage(message);

}

});

sendButton = (Button) findViewById(R.id.simpleToggleButton3);

sendButton.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

String message = "W 3 " + simpleToggleButton3.getText() + "\r\n";

//Toast.makeText(getApplicationContext(), status, Toast.LENGTH_SHORT).show(); // display the current state of toggle button's

SendMessage(message);

}

});

sendButton = (Button) findViewById(R.id.simpleToggleButton4);

sendButton.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

String message = "W 4 " + simpleToggleButton4.getText() + "\r\n";

//Toast.makeText(getApplicationContext(), status, Toast.LENGTH_SHORT).show(); // display the current state of toggle button's

SendMessage(message);

}

});

//Progression seekbar vitesse

Ring1VitesseSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

int progress = 0;

// Notification that the user has started a touch gesture.

public void onStartTrackingTouch(SeekBar Ring1SpeedSeekBar) {

}

// When Progress value changed.

@Override

public void onProgressChanged(SeekBar seekBar, int progressSpeed1, boolean fromUser) {

}

// Notification that the user has finished a touch gesture

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

int progress = (int) ((-0.004 * (seekBar.getProgress() * seekBar.getProgress()) + (seekBar.getProgress() * 2.18)) - 45);

progress = seekBar.getMax() - progress;

String message = "S 1 " + progress + "\r\n";

SendMessage(message);

//afficher la valeur a cote de la tirette

TextView textviewspeed1 = findViewById(R.id.TextviewSpeed1);

textviewspeed1.setText(String.valueOf(progress));

}

});

Ring2VitesseSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

int progress = 0;

// Notification that the user has started a touch gesture.

public void onStartTrackingTouch(SeekBar Ring2SpeedSeekBar) {

}

// When Progress value changed.

@Override

public void onProgressChanged(SeekBar seekBar, int progressSpeed2, boolean fromUser) {

}

// Notification that the user has finished a touch gesture

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

int progress = (int) ((-0.004 * (seekBar.getProgress() * seekBar.getProgress()) + (seekBar.getProgress() * 2.18)) - 45);

progress = seekBar.getMax() - progress;

String message = "S 2 " + progress + "\r\n";

SendMessage(message);

//afficher la valeur a cote de la tirette

TextView textviewspeed2 = findViewById(R.id.TextviewSpeed2);

textviewspeed2.setText(String.valueOf(progress));

}

});

Ring3VitesseSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

int progress = 0;

// Notification that the user has started a touch gesture.

public void onStartTrackingTouch(SeekBar Ring3SpeedSeekBar) {

}

// When Progress value changed.

@Override

public void onProgressChanged(SeekBar seekBar, int progressSpeed3, boolean fromUser) {

}

// Notification that the user has finished a touch gesture

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

int progress = (int) ((-0.004 * (seekBar.getProgress() * seekBar.getProgress()) + (seekBar.getProgress() * 2.18)) - 45);

progress = seekBar.getMax() - progress;

String message = "S 3 " + progress + "\r\n";

SendMessage(message);

//afficher la valeur a cote de la tirette

TextView textviewspeed3 = findViewById(R.id.TextviewSpeed3);

textviewspeed3.setText(String.valueOf(progress));

}

});

Ring4VitesseSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

int progress = 0;

// Notification that the user has started a touch gesture.

public void onStartTrackingTouch(SeekBar Ring4SpeedSeekBar) {

}

// When Progress value changed.

@Override

public void onProgressChanged(SeekBar seekBar, int progressSpeed4, boolean fromUser) {

}

// Notification that the user has finished a touch gesture

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

int progress = (int) ((-0.004 * (seekBar.getProgress() * seekBar.getProgress()) + (seekBar.getProgress() * 2.18)) - 45);

progress = seekBar.getMax() - progress;

String message = "S 4 " + progress + "\r\n";

SendMessage(message);

//afficher la valeur a cote de la tirette

TextView textviewspeed4 = findViewById(R.id.TextviewSpeed4);

textviewspeed4.setText(String.valueOf(progress));

}

});

//Progression seekbar Lumiere

Ring1LumiereSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

int progress = 0;

// Notification that the user has started a touch gesture.

public void onStartTrackingTouch(SeekBar Ring1SpeedSeekBar) {

}

// When Progress value changed.

@Override

public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

//progress = progressLum1;

}

// Notification that the user has finished a touch gesture

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

int progress = seekBar.getProgress();

String message = "B 1 " + progress + "\r\n";

SendMessage(message);

//afficher la valeur a cote de la tirette

TextView textviewlum1 = findViewById(R.id.TextviewLum1);

textviewlum1.setText(String.valueOf(progress));

}

});

Ring2LumiereSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

int progress = 0;

// Notification that the user has started a touch gesture.

public void onStartTrackingTouch(SeekBar Ring2SpeedSeekBar) {

}

// When Progress value changed.

@Override

public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

}

// Notification that the user has finished a touch gesture

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

int progress = seekBar.getProgress();

String message = "B 2 " + progress + "\r\n";

SendMessage(message);

//afficher la valeur a cote de la tirette

TextView textviewlum2 = findViewById(R.id.TextviewLum2);

textviewlum2.setText(String.valueOf(progress));

}

});

Ring3LumiereSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

int progress = 0;

// Notification that the user has started a touch gesture.

public void onStartTrackingTouch(SeekBar Ring3SpeedSeekBar) {

}

// When Progress value changed.

@Override

public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

}

// Notification that the user has finished a touch gesture

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

int progress = seekBar.getProgress();

String message = "B 3 " + progress + "\r\n";

SendMessage(message);

//afficher la valeur a cote de la tirette

TextView textviewlum3 = findViewById(R.id.TextviewLum3);

textviewlum3.setText(String.valueOf(progress));

}

});

Ring4LumiereSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

int progress = 0;

// Notification that the user has started a touch gesture.

public void onStartTrackingTouch(SeekBar Ring4SpeedSeekBar) {

}

// When Progress value changed.

@Override

public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

}

// Notification that the user has finished a touch gesture

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

int progress = seekBar.getProgress();

String message = "B 4 " + progress + "\r\n";

SendMessage(message);

//afficher la valeur a cote de la tirette

TextView textviewlum4 = findViewById(R.id.TextviewLum4);

textviewlum4.setText(String.valueOf(progress));

}

});

//Volume seekbar

Volume.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

int progress = 0;

// Notification that the user has started a touch gesture.

public void onStartTrackingTouch(SeekBar seekBar) {

}

// When Progress value changed.

@Override

public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

}

// Notification that the user has finished a touch gesture

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

int progress = seekBar.getProgress();

progress = (int) ((9 * Math.log(progress)));

String message = "V " + progress + "\r\n";

SendMessage(message);

//afficher la valeur a cote de la tirette

TextView textviewvol = findViewById(R.id.TextviewVol);

textviewvol.setText(String.valueOf(progress));

}

});

btnDis.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

Disconnect(); //close connection

}

});

}

private void Disconnect() {

if (btSocket != null) //If the btSocket is busy

{

try {

btSocket.close(); //close connection

} catch (IOException e) {

msg("Error");

}

}

finish(); //return to the first layout

}

private void SendMessage(String key) {

if (btSocket != null) {

try {

btSocket.getOutputStream().write(key.getBytes());

} catch (IOException e) {

msg("Error");

}

}

}

// fast way to call Toast

private void msg(String s) {

Toast.makeText(getApplicationContext(), s, Toast.LENGTH_LONG).show();

}

private class ConnectBT extends AsyncTask<Void, Void, Void> // UI thread

{

private boolean ConnectSuccess = true; //if it's here, it's almost connected

@Override

protected void onPreExecute() {

progress = ProgressDialog.show(SapinControl.this, "Connecting...", "Please wait!!!"); //show a progress dialog

}

@Override

protected Void doInBackground(Void... devices) //while the progress dialog is shown, the connection is done in background

{

try {

if (btSocket == null || !isBtConnected) {

myBluetooth = BluetoothAdapter.getDefaultAdapter();//get the mobile bluetooth device

BluetoothDevice dispositivo = myBluetooth.getRemoteDevice(address);//connects to the device's address and checks if it's available

btSocket = dispositivo.createInsecureRfcommSocketToServiceRecord(myUUID);//create a RFCOMM (SPP) connection

BluetoothAdapter.getDefaultAdapter().cancelDiscovery();

btSocket.connect();//start connection

}

} catch (IOException e) {

ConnectSuccess = false;//if the try failed, you can check the exception here

}

return null;

}

@Override

protected void onPostExecute(Void result) //after the doInBackground, it checks if everything went fine

{

super.onPostExecute(result);

if (!ConnectSuccess) {

msg("Connection Failed. Is it a SPP Bluetooth? Try again.");

finish();

} else {

msg("Connected.");

isBtConnected = true;

}

progress.dismiss();

}

}

}

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shyriu42 · Jan 19, 2021

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