docs: Added automatic scalling for graphs

README.md

@@ -124,6 +124,50 @@ Sign up for the latest updates and test new features early by joining our beta p
 | Gas Sensor             | Detects gases, including NH3, NOx, alcohol, benzene, smoke and CO2| :heavy_check_mark: |
 | Robotic Arm Controller | Allows to control 4 servo motors of the robotic arm independently | :heavy_check_mark: |
 
+## Robotic Arm Control
+
+The Robotic Arm feature in the PSLab Android app allows users to control a servo-based robotic arm using the Pocket Science Lab hardware. This is ideal for educational robotics, DIY automation, and remote experiments.
+
+# Key Capabilities
+
+-Manual control of servo motors using sliders.
+
+-Set angles precisely for each servo.
+
+-Create custom movement profiles (position sets).
+
+-Save/load profiles from local storage using internal database.
+
+-Export/import profiles in JSON format.
+
+-Replay saved profiles for automation.
+
+# How to Use the Robotic Arm Screen
+
+-Connect the PSLab device via USB.
+
+-Go to Instruments > Robotic Arm.
+
+-Use the sliders to move each servo (e.g., Base, Shoulder, Elbow, Gripper).
+
+-Set desired positions for all servos.
+
+-Tap Save Profile to store the current servo positions.
+
+-Use Load Profile to retrieve saved movements.
+
+-Tap Play to replay the selected profile.
+
+# Saving and Loading Profiles
+
+-Save: Stores the current servo angles into a named profile in local database.
+
+-Load: Loads the servo angles from a selected profile and updates the UI.
+
+-Export: Saves profile(s) to a .json file.
+
+-Import: Load external JSON files to restore or share profiles.
+
 ## How to set up the Android app in your development environment
 
 ### Application Flavors

app/src/main/java/io/pslab/activity/CreateConfigActivity.java

@@ -159,7 +159,12 @@ private void createCheckboxList() {
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         if (item.getItemId() == android.R.id.home) {
-            finish();
+            finish();rea
+        }else if (item.getItemId() == R.id.compass_help_icon) {
+
+            Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://your-documentation-link.com"));
+            startActivity(browserIntent);
+            return true;
         }
         return super.onOptionsItemSelected(item);
     }

app/src/main/java/io/pslab/activity/RoboticArmActivity.java

@@ -225,13 +225,20 @@ protected void onCreate(Bundle savedInstanceState) {
         seekArc1.setOnSeekArcChangeListener(new SeekArc.OnSeekArcChangeListener() {
             @Override
             public void onProgressChanged(SeekArc seekArc, int i, boolean b) {
+                int angle;
                 if (editEnter) {
+                    angle = degree;
                     degreeText1.setText(String.valueOf(degree));
                     editEnter = false;
                 } else {
+                    angle = (int) (i * 3.6);
                     degreeText1.setText(String.valueOf((int) (i * 3.6)));
                 }
                 degreeText1.setCursorVisible(false);
+
+                if (scienceLab != null && scienceLab.isConnected()) {
+                    scienceLab.servoWrite(0, angle); 
+                }
             }
 
             @Override
@@ -248,13 +255,19 @@ public void onStopTrackingTouch(SeekArc seekArc) {
         seekArc2.setOnSeekArcChangeListener(new SeekArc.OnSeekArcChangeListener() {
             @Override
             public void onProgressChanged(SeekArc seekArc, int i, boolean b) {
+                int angle;
                 if (editEnter) {
+                    angle = degree;
                     degreeText2.setText(String.valueOf(degree));
                     editEnter = false;
                 } else {
+                    angle = (int) (i * 3.6);
                     degreeText2.setText(String.valueOf((int) (i * 3.6)));
                 }
                 degreeText2.setCursorVisible(false);
+                if (scienceLab != null && scienceLab.isConnected()) {
+                    scienceLab.servoWrite(1, angle); 
+                }
             }
 
             @Override
@@ -271,13 +284,19 @@ public void onStopTrackingTouch(SeekArc seekArc) {
         seekArc3.setOnSeekArcChangeListener(new SeekArc.OnSeekArcChangeListener() {
             @Override
             public void onProgressChanged(SeekArc seekArc, int i, boolean b) {
+                int angle;
                 if (editEnter) {
+                    angle = degree;
                     degreeText3.setText(String.valueOf(degree));
                     editEnter = false;
                 } else {
+                    angle = (int) (i * 3.6);
                     degreeText3.setText(String.valueOf((int) (i * 3.6)));
                 }
                 degreeText3.setCursorVisible(false);
+                if (scienceLab != null && scienceLab.isConnected()) {
+                    scienceLab.servoWrite(2, angle);
+                }
             }
 
             @Override
@@ -294,13 +313,19 @@ public void onStopTrackingTouch(SeekArc seekArc) {
         seekArc4.setOnSeekArcChangeListener(new SeekArc.OnSeekArcChangeListener() {
             @Override
             public void onProgressChanged(SeekArc seekArc, int i, boolean b) {
+                int angle;
                 if (editEnter) {
+                    angle = degree;
                     degreeText4.setText(String.valueOf(degree));
                     editEnter = false;
                 } else {
+                    angle = (int) (i * 3.6);
                     degreeText4.setText(String.valueOf((int) (i * 3.6)));
                 }
                 degreeText4.setCursorVisible(false);
+                if (scienceLab != null && scienceLab.isConnected()) {
+                    scienceLab.servoWrite(3, angle); 
+                }
             }
 
             @Override

app/src/main/java/io/pslab/activity/SensorActivity.java

@@ -78,7 +78,7 @@ protected void onCreate(@Nullable Bundle savedInstanceState) {
         sensorAddr.put(0x77, "BMP180");
         sensorAddr.put(0x5A, "MLX90614");
         sensorAddr.put(0x1E, "HMC5883L");
-        sensorAddr.put(0x68, "MPU6050");
+        sensorAddr.put(0x69, "MPU6050");
         sensorAddr.put(0x40, "SHT21");
         sensorAddr.put(0x39, "TSL2561");
         sensorAddr.put(0x69, "MPU925x");

app/src/main/java/io/pslab/activity/SensorDataLoggerActivity.java

@@ -149,7 +149,7 @@ public void onItemClick(AdapterView<?> parent, View view, int position, long id)
         sensorAddress.put(0x77, "BMP180");
         sensorAddress.put(0x5A, "MLX90614");
         sensorAddress.put(0x1E, "HMC5883L");
-        sensorAddress.put(0x68, "MPU6050");
+        sensorAddress.put(0x69, "MPU6050");
         sensorAddress.put(0x40, "SHT21");
         sensorAddress.put(0x39, "TSL2561");
     }

app/src/main/java/io/pslab/activity/SettingsActivity.java

@@ -57,6 +57,14 @@ protected void onCreate(Bundle savedInstanceState) {
             actionBar.setTitle(title);
         }
 
+        Button myButton = findViewById(R.id.myButton);
+    myButton.setOnClickListener(new View.OnClickListener() {
+        @Override
+        public void onClick(View v) {
+            Toast.makeText(CompassActivity.this, "Button clicked!", Toast.LENGTH_SHORT).show();
+        }
+    });
+
         Fragment fragment;
         switch (title) {
             case PSLabSensor.LUXMETER_CONFIGURATIONS:
@@ -95,12 +103,29 @@ protected void onCreate(Bundle savedInstanceState) {
             getSupportFragmentManager().beginTransaction().add(R.id.content, fragment).commit();
         }
     }
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.activity_compass_help_menu, menu);
+        return true;
+    }
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
-        if (item.getItemId() == android.R.id.home) {
-            finish();
-        }
+        int id = item.getItemId();
+
+    if (id == android.R.id.home) {
+        finish();
+        return true;
+    } else if (id == R.id.compass_record_data) {
+
+        Toast.makeText(this, "Recording current compass data...", Toast.LENGTH_SHORT).show();
+        return true;
+    } else if (id == R.id.compass_help_icon) {
+
+        Toast.makeText(this, "Opening compass help...", Toast.LENGTH_SHORT).show();
+        return true;
+    }
+
         return super.onOptionsItemSelected(item);
     }
 

app/src/main/java/io/pslab/communication/SensorList.java

@@ -25,7 +25,7 @@ public SensorList() {
         sensorList.put(0x5A, new String[]{"MLX90614 PIR temperature"});
         sensorList.put(0x1E, new String[]{"HMC5883L magnetometer", "LSM303 magnetometer"});
         sensorList.put(0x77, new String[]{"BMP180/GY-68 altimeter", "MS5607", "MS5611"});
-        sensorList.put(0x68, new String[]{"MPU-6050/GY-521 accel+gyro+temp", "ITG3200", "DS1307", "DS3231"});
+        sensorList.put(0x69, new String[]{"MPU-6050/GY-521 accel+gyro+temp", "ITG3200", "DS1307", "DS3231"});
         sensorList.put(0x69, new String[]{"ITG3200"});
         sensorList.put(0x76, new String[]{"MS5607", "MS5611"});
         sensorList.put(0x6B, new String[]{"LSM9DSO gyro"});

app/src/main/java/io/pslab/communication/sensors/MPU6050.java

@@ -25,7 +25,7 @@ public class MPU6050 {
     private int GR = 3;
     private int NUMPLOTS = 7;
     public String[] PLOTNAMES = {"Ax", "Ay", "Az,'Temp", "Gx", "Gy", "Gz"};
-    private int ADDRESS = 0x68;
+    private int ADDRESS = 0x69;
     private String name = "Accel/gyro";
     private ArrayList<KalmanFilter> K = new ArrayList<>();          //K is the list of KalmanFilter object
     private I2C i2c;

app/src/main/java/io/pslab/communication/sensors/MPU925x.java

@@ -27,7 +27,7 @@ public class MPU925x {
     private int GR = 3;
     private int NUMPLOTS = 7;
     public String[] PLOTNAMES = new String[]{"Ax", "Ay", "Az", "Temp", "Gx", "Gy", "Gz"};
-    private int ADDRESS = 0x68;
+    private int ADDRESS = 0x69;
     private int AK8963_ADDRESS = 0x0C;
     private int AK8963_CNTL = 0x0A;
     public String name = "Accel/gyro";

app/src/main/java/io/pslab/fragment/AccelerometerDataFragment.java

@@ -417,6 +417,9 @@ private void writeLogToFile(long timestamp, float readingX, float readingY, floa
             accelerometerSensor.writeHeaderToFile = true;
         }
     }
+    public LineChart getChart() {
+        return chart; 
+    }
 
     private void visualizeData() {
         for (int i = 0; i < accelerometerViewFragments.size(); i++) {
@@ -435,7 +438,16 @@ private void visualizeData() {
                 LineData data = new LineData(dataSet);
 
                 fragment.setChartData(data);
+
                 fragment.setYaxis(highLimit);
+                // ✅ Auto-scaling Y-axis
+                LineChart chart = fragment.getChart(); // Assuming you have this getter method
+                chart.setAutoScaleMinMaxEnabled(true);
+                chart.getAxisLeft().resetAxisMaximum();
+                chart.getAxisLeft().resetAxisMinimum();
+
+                chart.notifyDataSetChanged();
+                chart.invalidate();
             }
         }
         Long currentTime = System.currentTimeMillis();

app/src/main/java/io/pslab/fragment/BaroMeterDataFragment.java

@@ -112,8 +112,6 @@ private enum BARO_SENSOR {INBUILT_SENSOR, BMP180_SENSOR}
     private ArrayList<Entry> altitudeEntries;
     private ArrayList<BaroData> recordedBaroArray;
     private BaroData sensorData;
-    private float currentMin = 2;
-    private float currentMax = 0.5f;
     private YAxis y;
     private YAxis y2;
     private Unbinder unbinder;
@@ -166,12 +164,18 @@ public void onResume() {
             updateGraphs();
             sum = 0;
             count = 0;
-            currentMin = 2;
-            currentMax = 0.5f;
+            // REMOVE these fixed axis values to allow auto-scaling
+            // currentMin = 2;
+            // currentMax = 0.5f;
             pressureEntries.clear();
             altitudeEntries.clear();
             mChart.clear();
             mChart.invalidate();
+            // Auto-scaling: reset min/max if using MPAndroidChart
+            mChart.getAxisLeft().resetAxisMinimum();
+            mChart.getAxisLeft().resetAxisMaximum();
+            mChart.getAxisRight().resetAxisMinimum();
+            mChart.getAxisRight().resetAxisMaximum();
             initiateBaroSensor(sensorType);
         } else if (returningFromPause) {
             updateGraphs();

app/src/main/java/io/pslab/fragment/GyroscopeDataFragment.java

@@ -423,6 +423,9 @@ private void writeLogToFile(long timestamp, float readingX, float readingY, floa
             gyroSensor.writeHeaderToFile = true;
         }
     }
+    public LineChart getChart() {
+        return chart; // Make sure your LineChart variable is named 'chart'
+    }
 
     private void visualizeData() {
         for (int i = 0; i < gyroscopeViewFragments.size(); i++) {
@@ -441,7 +444,17 @@ private void visualizeData() {
                 LineData data = new LineData(dataSet);
 
                 fragment.setChartData(data);
-                fragment.setYaxis(highLimit);
+                // REMOVE this line as it is forcing fixed Y-axis:
+                // fragment.setYaxis(highLimit);
+
+                // NEW: Enable auto-scaling
+                LineChart chart = fragment.getChart();
+                chart.setAutoScaleMinMaxEnabled(true);
+                chart.getAxisLeft().resetAxisMaximum();
+                chart.getAxisLeft().resetAxisMinimum();
+
+                chart.notifyDataSetChanged();
+                chart.invalidate();
             }
         }
         Long currentTime = System.currentTimeMillis();

app/src/main/java/io/pslab/fragment/LuxMeterDataFragment.java

@@ -109,8 +109,6 @@ private enum LUX_SENSOR {INBUILT_SENSOR, BH1750_SENSOR, TSL2561_SENSOR}
     private ArrayList<Entry> entries;
     private ArrayList<LuxData> recordedLuxArray;
     private LuxData sensorData;
-    private float currentMin = 10000;
-    private float currentMax = 0;
     private YAxis y;
     private Unbinder unbinder;
     private long previousTimeElapsed = (System.currentTimeMillis() - startTime) / updatePeriod;
@@ -162,11 +160,18 @@ public void onResume() {
             updateGraphs();
             sum = 0;
             count = 0;
-            currentMin = 10000;
-            currentMax = 0;
+            // REMOVE these fixed axis values to allow auto-scaling
+            // currentMin = 10000;
+            // currentMax = 0;
             entries.clear();
             mChart.clear();
             mChart.invalidate();
+             // Auto-scaling: reset min/max if using MPAndroidChart
+             mChart.getAxisLeft().resetAxisMinimum();
+             mChart.getAxisLeft().resetAxisMaximum();
+             mChart.getAxisRight().resetAxisMinimum();
+             mChart.getAxisRight().resetAxisMaximum();
+             initiateBaroSensor(sensorType);
             initiateLuxSensor(sensorType);
         } else if (returningFromPause) {
             updateGraphs();

app/src/main/java/io/pslab/fragment/ThermometerDataFragment.java

@@ -108,8 +108,6 @@ private enum THERMOMETER_SENSOR {INBUILT_SENSOR, SHT21_SENSOR}
     private ArrayList<Entry> entries;
     private ArrayList<ThermometerData> recordedThermoArray;
     private ThermometerData sensorData;
-    private float currentMin = 125;
-    private float currentMax = -40;
     private YAxis y;
     private Unbinder unbinder;
     private long previousTimeElapsed = (System.currentTimeMillis() - startTime) / updatePeriod;
@@ -166,6 +164,13 @@ public void onResume() {
             entries.clear();
             mChart.clear();
             mChart.invalidate();
+            // Auto-scaling: reset min/max if using MPAndroidChart
+            mChart.getAxisLeft().resetAxisMinimum();
+            mChart.getAxisLeft().resetAxisMaximum();
+            mChart.getAxisRight().resetAxisMinimum();
+            mChart.getAxisRight().resetAxisMaximum();
+            initiateBaroSensor(sensorType);
+            initiateLuxSensor(sensorType);
             initiateThermoSensor(sensorType);
         } else if (returningFromPause) {
             updateGraphs();