BT connection improved. Requstes to enable BT. 5 speed implementation.

UI improvements

Android/.idea/modules.xml

@@ -2,7 +2,7 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
-      <module fileurl="file://$PROJECT_DIR$/VaporizR2.iml" filepath="$PROJECT_DIR$/VaporizR2.iml" />
+      <module fileurl="file://$PROJECT_DIR$/Android.iml" filepath="$PROJECT_DIR$/Android.iml" />
       <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
     </modules>
   </component>

Android/.idea/vcs.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
   </component>
 </project>

Android/app/build.gradle

@@ -6,8 +6,8 @@ android {
         applicationId "yehor.vialov.vaporizr2"
         minSdkVersion 25
         targetSdkVersion 26
-        versionCode 1
+        versionCode 2
-        versionName "1.0"
+        versionName "1.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {

Android/app/src/main/java/yehor/vialov/vaporizr2/MainActivity.java

@@ -29,9 +29,9 @@ public class MainActivity extends AppCompatActivity {
     SeekBar motorB;
     TextView txtA;
     TextView txtB;
-    private final static int MOTOR_FULL_FORWARD_COMMAND = 4;
+    private final static int MOTOR_FULL_FORWARD_COMMAND = 10;
     private final static int MOTOR_FULL_BACKWARD_COMMAND = 0;
-    private final static int MOTOR_STOP_COMMAND = 2;
+    private final static int MOTOR_STOP_COMMAND = 5;
     ImageView imEngine;
 
     @Override
@@ -41,10 +41,10 @@ public class MainActivity extends AppCompatActivity {
 
         txtStatus = (TextView) findViewById(R.id.txtStatus);
 
-        motorA = (SeekBar)findViewById(R.id.motorB);
+        motorA = (SeekBar)findViewById(R.id.motorA);
         motorA.setProgress(MOTOR_STOP_COMMAND);
         motorA.setMax(MOTOR_FULL_FORWARD_COMMAND);
-        motorB = (SeekBar)findViewById(R.id.motorA);
+        motorB = (SeekBar)findViewById(R.id.motorB);
         motorB.setProgress(MOTOR_STOP_COMMAND);
         motorB.setMax(MOTOR_FULL_FORWARD_COMMAND);
         motorA.setEnabled(false);
@@ -134,22 +134,19 @@ public class MainActivity extends AppCompatActivity {
     private void connectToCar() {
         new Thread() {
             public void run() {
+                boolean enableBTRequested = false;
                 while (btSocket==null || !btSocket.isConnected()) {
+                    BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
+                    if (adapter == null) {
                         runOnUiThread(new Runnable() {
                             @Override
                             public void run() {
-                            txtStatus.setText("Connecting...");
+                                txtStatus.setText("Bluetooth is not supported");
                                 imEngine.setVisibility(View.VISIBLE);
                             }
                         });
-
+                    } else {
-                    BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
+                        if (!adapter.isEnabled() && !enableBTRequested) {
-                    if (adapter == null) {
-                        // Device does not support Bluetooth
-                        finish(); //exit
-                    }
-
-                    if (!adapter.isEnabled()) {
                             runOnUiThread(new Runnable() {
                                 @Override
                                 public void run() {
@@ -158,9 +155,18 @@ public class MainActivity extends AppCompatActivity {
                                 }
                             });
                             //make sure the device's bluetooth is enabled
+                            enableBTRequested = true;
                             Intent enableBluetooth = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
                             startActivityForResult(enableBluetooth, REQUEST_ENABLE_BT);
-                    } else {
+                        } else if (adapter.isEnabled()) {
+                            runOnUiThread(new Runnable() {
+                                @Override
+                                public void run() {
+                                    txtStatus.setText("Connecting...");
+                                    imEngine.setVisibility(View.VISIBLE);
+                                }
+                            });
+                            enableBTRequested = false;
                             final UUID SERIAL_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"); //UUID for serial connection
                             String mac = "98:D3:31:F5:2D:2F"; //my laptop's mac adress
                             BluetoothDevice device = adapter.getRemoteDevice(mac); //get remote device by mac, we assume these two devices are already paired
@@ -206,6 +212,7 @@ public class MainActivity extends AppCompatActivity {
                                 e.printStackTrace();
                             }
                         }
+                    }
                     try {
                         Thread.sleep(5000);
                     } catch (InterruptedException e) {
@@ -217,8 +224,26 @@ public class MainActivity extends AppCompatActivity {
     }
 
     private void sendCommand() {
-        String m1 = Integer.toString(motorA.getProgress());
+        int motorASpeed, motorBSpeed;
-        String m2 = Integer.toString(motorB.getProgress());
+        String m1, m2;
+        int mAProgress = motorA.getProgress();
+        int mBProgress = motorB.getProgress();
+        if (mAProgress < 5) {
+            m1 = "b";
+            motorASpeed = 5 - mAProgress;
+        } else {
+            m1 = "f";
+            motorASpeed = mAProgress - 5;
+        }
+        if (mBProgress < 5) {
+            m2 = "b";
+            motorBSpeed = 5 - mBProgress;
+        } else {
+            m2 = "f";
+            motorBSpeed = mBProgress - 5;
+        }
+        m1 += Integer.toString(motorASpeed);
+        m2 += Integer.toString(motorBSpeed);
         txtA.setText(m1);
         txtB.setText(m2);
         try {

Android/app/src/main/res/drawable/thumb_image.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
+
+    <item>
+        <shape>
+            <size
+                android:height="80dp"
+                android:width="20dp" />
+
+            <solid android:color="@android:color/transparent" />
+        </shape>
+    </item>
+    <item android:drawable="@android:drawable/ic_notification_overlay"/>
+
+</layer-list>

Android/app/src/main/res/layout/activity_main.xml

@@ -7,45 +7,41 @@
     tools:context="yehor.vialov.vaporizr2.MainActivity">
 
     <SeekBar
-        android:id="@+id/motorA"
+        android:id="@+id/motorB"
         style="@style/Widget.AppCompat.SeekBar.Discrete"
-        android:layout_width="0dp"
+        android:layout_width="232dp"
         android:layout_height="0dp"
         android:layout_marginBottom="8dp"
-        android:layout_marginEnd="8dp"
         android:layout_marginStart="8dp"
         android:layout_marginTop="8dp"
         android:max="500"
         android:min="0"
         android:progress="255"
         android:rotation="270"
-        android:thumb="@android:drawable/ic_notification_overlay"
+        android:thumb="@drawable/thumb_image"
         app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toStartOf="@+id/guideline"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
     <SeekBar
-        android:id="@+id/motorB"
+        android:id="@+id/motorA"
         style="@style/Widget.AppCompat.SeekBar.Discrete"
-        android:layout_width="0dp"
+        android:layout_width="232dp"
         android:layout_height="0dp"
         android:layout_marginBottom="8dp"
         android:layout_marginEnd="8dp"
-        android:layout_marginStart="8dp"
         android:layout_marginTop="8dp"
         android:max="500"
         android:min="0"
         android:progress="255"
         android:rotation="270"
-        android:thumb="@android:drawable/ic_notification_overlay"
+        android:thumb="@drawable/thumb_image"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="@+id/guideline"
         app:layout_constraintTop_toTopOf="parent" />
 
     <TextView
-        android:id="@+id/txtA"
+        android:id="@+id/txtB"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginBottom="8dp"
@@ -55,7 +51,7 @@
         app:layout_constraintStart_toStartOf="parent" />
 
     <TextView
-        android:id="@+id/txtB"
+        android:id="@+id/txtA"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginBottom="8dp"

Arduino/VaporizR2/VaporizR2.ino

@@ -14,61 +14,80 @@ const int offsetA = 1;
 const int offsetB = -1;
 
 SoftwareSerial BTSerial(3, 2); // RX | TX
-String reader;
+Motor motorA = Motor(AIN1, AIN2, PWMA, offsetA, STBY);
-Motor motor1 = Motor(AIN1, AIN2, PWMA, offsetA, STBY);
+Motor motorB = Motor(BIN1, BIN2, PWMB, offsetB, STBY);
-Motor motor2 = Motor(BIN1, BIN2, PWMB, offsetB, STBY);
 
 void setup()
 {
   //Serial.begin(9600);
   //Serial.println("Ready:");
   BTSerial.begin(9600);  // HC-05 default speed in AT command more
-  brake(motor1, motor2);
 }
 
 void loop()
 {
-  char m1 = '9';
+  char motorADirection = 'f';
-  char m2 = '9';
+  char motorBDirection = 'f';
+  char motorASpeed = '0';
+  char motorBSpeed = '0';
+  int motorAVelocity = 0;
+  int motorBVelocity = 0;
   //Serial.println("There is "+String(BTSerial.available())+" available");
-  if (BTSerial.available()==2) {
+  if (BTSerial.available() == 4) {
-      m1 = BTSerial.read();
+      motorADirection = BTSerial.read();
-      m2 = BTSerial.read();
+      motorASpeed = BTSerial.read();
-      //Serial.println("Receved: "+String(m1)+";"+String(m2));
+      motorBDirection = BTSerial.read();
-      switch (m1) {
+      motorBSpeed = BTSerial.read();
+      //Serial.println("Receved: "+String(motorADirection)+String(motorASpeed)+String(motorBDirection)+String(motorBSpeed));
+      switch (motorASpeed) {
         case '0':
-          motor1.drive(-255);
+          motorAVelocity = 0;
           break;
         case '1':
-          motor1.drive(-170);
+          motorAVelocity = 100;
           break;
         case '2':
-          motor1.drive(0);
+          motorAVelocity = 140;
           break;
         case '3':
-          motor1.drive(170);
+          motorAVelocity = 180;
           break;
         case '4':
-          motor1.drive(255);
+          motorAVelocity = 200;
+          break;
+        case '5':
+          motorAVelocity = 225;
           break;
       }
-      switch (m2) {
+      switch (motorBSpeed) {
         case '0':
-          motor2.drive(-255);
+          motorBVelocity = 0;
           break;
         case '1':
-          motor2.drive(-170);
+          motorBVelocity = 100;
           break;
         case '2':
-          motor2.drive(0);
+          motorBVelocity = 140;
           break;
         case '3':
-          motor2.drive(170);
+          motorBVelocity = 180;
           break;
         case '4':
-          motor2.drive(255);
+          motorBVelocity = 200;
+          break;
+        case '5':
+          motorBVelocity = 225;
           break;
       }
+      if (motorADirection == 'b') {
+        motorAVelocity = 0 - motorAVelocity;
+      }
+      if (motorBDirection == 'b') {
+        motorBVelocity = 0 - motorBVelocity;
+      }
+      //Serial.println("A: "+String(motorAVelocity)+"; B: "+String(motorBVelocity));
+      motorA.drive(motorAVelocity);
+      motorB.drive(motorBVelocity);
   }
 
 }

Arduino/motor_test/motor_test.ino

@@ -0,0 +1,34 @@
+#include <SparkFun_TB6612.h>
+
+#include <SoftwareSerial.h>
+
+#define AIN1 4
+#define BIN1 8
+#define AIN2 5
+#define BIN2 7
+#define PWMA 11
+#define PWMB 10
+#define STBY 6
+
+const int offsetA = 1;
+const int offsetB = -1;
+
+Motor motor1 = Motor(AIN1, AIN2, PWMA, offsetA, STBY);
+Motor motor2 = Motor(BIN1, BIN2, PWMB, offsetB, STBY);
+
+void setup()
+{
+  Serial.begin(9600);
+  Serial.println("Ready:");
+}
+
+void loop()
+{
+  int v = 0;
+  while(v<=255) {
+    motor2.drive(v);
+    Serial.println("Speed: "+String(v));
+    delay(100);
+    v = v+1;
+  }
+}