diff --git a/ShimmerAndroidInstrumentDriver/shimmerBasicExample/build.gradle b/ShimmerAndroidInstrumentDriver/shimmerBasicExample/build.gradle
index e231b57c..cd9c2422 100644
--- a/ShimmerAndroidInstrumentDriver/shimmerBasicExample/build.gradle
+++ b/ShimmerAndroidInstrumentDriver/shimmerBasicExample/build.gradle
@@ -46,13 +46,20 @@ dependencies {
 
      androidTestCompile 'com.android.support:support-annotations:25.3.1'
     compile(group: 'com.shimmersensing', name: 'ShimmerAndroidInstrumentDriver', version: '3.0.72Beta', ext: 'aar')
-    implementation (group: 'com.shimmersensing', name: 'ShimmerBluetoothManager', version:'0.9.42beta'){
-        // excluding org.json which is provided by Android
-        exclude group: 'io.netty'
-        exclude group: 'com.google.protobuf'
-        exclude group: 'org.apache.commons.math'
-    }
-    implementation (group: 'com.shimmersensing', name: 'ShimmerDriver', version:'0.9.138beta'){
+//    implementation (group: 'com.shimmersensing', name: 'ShimmerBluetoothManager', version:'0.9.42beta'){
+//        // excluding org.json which is provided by Android
+//        exclude group: 'io.netty'
+//        exclude group: 'com.google.protobuf'
+//        exclude group: 'org.apache.commons.math'
+//    }
+//    implementation (group: 'com.shimmersensing', name: 'ShimmerDriver', version:'0.9.138beta'){
+//        // excluding org.json which is provided by Android
+//        exclude group: 'io.netty'
+//        exclude group: 'com.google.protobuf'
+//        exclude group: 'org.apache.commons.math'
+//    }
+
+    implementation (group: 'com.shimmersensing', name: 'ShimmerDriverDev', version:'JA-79 v0.1'){
         // excluding org.json which is provided by Android
         exclude group: 'io.netty'
         exclude group: 'com.google.protobuf'
diff --git a/ShimmerAndroidInstrumentDriver/shimmerBasicExample/src/main/java/shimmerresearch/com/shimmerbasicexample/MainActivity.java b/ShimmerAndroidInstrumentDriver/shimmerBasicExample/src/main/java/shimmerresearch/com/shimmerbasicexample/MainActivity.java
index e753e065..a01fc911 100644
--- a/ShimmerAndroidInstrumentDriver/shimmerBasicExample/src/main/java/shimmerresearch/com/shimmerbasicexample/MainActivity.java
+++ b/ShimmerAndroidInstrumentDriver/shimmerBasicExample/src/main/java/shimmerresearch/com/shimmerbasicexample/MainActivity.java
@@ -7,6 +7,9 @@
 import android.os.Message;
 import android.util.Log;
 import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.Spinner;
 import android.widget.Toast;
 
 import com.shimmerresearch.android.Shimmer;
@@ -21,16 +24,17 @@
 import java.io.File;
 import java.io.FileWriter;
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.Collection;
-import java.util.Timer;
-import java.util.TimerTask;
+import java.util.List;
 
 import static com.shimmerresearch.android.guiUtilities.ShimmerBluetoothDialog.EXTRA_DEVICE_ADDRESS;
 
-public class MainActivity extends Activity {
+public class MainActivity extends Activity implements AdapterView.OnItemSelectedListener {
 
     private final static String LOG_TAG = "ShimmerBasicExample";
     Shimmer shimmer;
+    Spinner spinner;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -38,6 +42,41 @@ protected void onCreate(Bundle savedInstanceState) {
         setContentView(R.layout.activity_main);
 
         shimmer = new Shimmer(mHandler);
+        spinner = (Spinner) findViewById(R.id.crcSpinner);
+        spinner.setEnabled(false);
+        // Spinner click listener
+        spinner.setOnItemSelectedListener(this);
+        List<String> categories = new ArrayList<String>();
+        categories.add("Disable crc");
+        categories.add("Enable 1 byte CRC");
+        categories.add("Enable 2 byte CRC");
+        // Creating adapter for spinner
+        ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, categories);
+        dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+        // attaching data adapter to spinner
+        spinner.setAdapter(dataAdapter);
+    }
+
+    @Override
+    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+        if(spinner.isEnabled()){
+            switch(position) {
+                case 0:
+                    shimmer.disableBtCommsCrc();
+                    break;
+                case 1:
+                    shimmer.enableBtCommsOneByteCrc();
+                    break;
+                case 2:
+                    shimmer.enableBtCommsTwoByteCrc();
+                    break;
+                default:
+            }
+        }
+    }
+
+    public void onNothingSelected(AdapterView<?> parent) {
+        // Another interface callback
     }
 
     public void connectDevice(View v) {
@@ -107,16 +146,36 @@ public void handleMessage(Message msg) {
 
                     switch (state) {
                         case CONNECTED:
+                            if(shimmer.getFirmwareVersionCode() >= 8){
+                                if(!spinner.isEnabled()){
+                                    switch(shimmer.getBtCommsCrcModeIfFwSupported()) {
+                                        case OFF:
+                                            spinner.setSelection(0);
+                                            break;
+                                        case ONE_BYTE_CRC:
+                                            spinner.setSelection(1);
+                                            break;
+                                        case TWO_BYTE_CRC:
+                                            spinner.setSelection(2);
+                                            break;
+                                        default:
+                                    }
+                                }
+                                spinner.setEnabled(true);
+                            }
                             break;
                         case CONNECTING:
                             break;
                         case STREAMING:
+                            spinner.setEnabled(false);
                             break;
                         case STREAMING_AND_SDLOGGING:
                             break;
                         case SDLOGGING:
                             break;
                         case DISCONNECTED:
+                            spinner.setEnabled(false);
+                            spinner.setSelection(0);
                             break;
                     }
                     break;
diff --git a/ShimmerAndroidInstrumentDriver/shimmerBasicExample/src/main/res/layout/activity_main.xml b/ShimmerAndroidInstrumentDriver/shimmerBasicExample/src/main/res/layout/activity_main.xml
index aba5d886..ee519f01 100644
--- a/ShimmerAndroidInstrumentDriver/shimmerBasicExample/src/main/res/layout/activity_main.xml
+++ b/ShimmerAndroidInstrumentDriver/shimmerBasicExample/src/main/res/layout/activity_main.xml
@@ -43,7 +43,10 @@
         android:layout_height="wrap_content"
         android:onClick="connectDevice"
         android:text="Connect" />
-
+    <Spinner
+        android:id="@+id/crcSpinner"
+        android:layout_width="200dp"
+        android:layout_height="wrap_content" />
     <Button
         android:id="@+id/button6"
         android:layout_width="200dp"