giomurru
commented
8 years ago Hi Pedro, I can't test it right now because I recently changed place where I live and I don't have the ble mini and arduino with me. I see that my latest commit on the project says "Everything works on Android except the fact that data is not transmitted correctly". I am sorry to say, I wasn't able to solve the problem because by knowledge of Android architecture is limited compared to the one of iOS I have. If you are able to solve the problem you are welcome to submit a pull request in github, please.
Thank you for your time,
Giovanni
On Sun, Jul 10, 2016 at 6:45 PM, Pedro Lopes notifications@github.com wrote:
Everything works, i.e., I can connect the phone (running your code in Unity, on an android) and my arduino which has a BT LE module. (I see the blue LED that signifies the connection worked).
However, the function _SendData, crashes in runtime with: 07-10 18:38:28.493 4294-4318/? I/Unity: AndroidJavaException: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.bluetooth.BluetoothGattCharacteristic.setValue(byte[])' on a null object reference java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.bluetooth.BluetoothGattCharacteristic.setValue(byte[])' on a null object reference at com.gmurru.bleframework.BleFramework._SendData(BleFramework.java:605) at com.unity3d.player.UnityPlayer.nativeRender(Native Method) at com.unity3d.player.UnityPlayer.a(Unknown Source) at com.unity3d.player.UnityPlayer$b.run(Unknown Source) at UnityEngine.AndroidJNISafe.CheckException () [0x00000] in <filename unknown>:0 at UnityEngine.AndroidJNISafe.CallVoidMethod (IntPtr obj, IntPtr methodID, UnityEngine.jvalue[] args) [0x00000] in
:0 at UnityEngine.AndroidJavaObject._Call (System.String methodName, System.Object[] args) [0x00000] in :0 at UnityEngine.AndroidJavaObject.Call (System.String methodName, System.O Is this the proper way to send a few bytes through the BT connection? Do I have to initialize a service first? (I do that in my Android Studio app, was trying to replicate in Unity)
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Everything works, i.e., I can connect the phone (running your code in Unity, on an android) and my arduino which has a BT LE module. (I see the blue LED that signifies the connection worked).
However, the function _SendData, crashes in runtime with:
07-10 18:38:28.493 4294-4318/? I/Unity: AndroidJavaException: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.bluetooth.BluetoothGattCharacteristic.setValue(byte[])' on a null object reference java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.bluetooth.BluetoothGattCharacteristic.setValue(byte[])' on a null object reference at com.gmurru.bleframework.BleFramework._SendData(BleFramework.java:605) at com.unity3d.player.UnityPlayer.nativeRender(Native Method) at com.unity3d.player.UnityPlayer.a(Unknown Source) at com.unity3d.player.UnityPlayer$b.run(Unknown Source) at UnityEngine.AndroidJNISafe.CheckException () [0x00000] in <filename unknown>:0 at UnityEngine.AndroidJNISafe.CallVoidMethod (IntPtr obj, IntPtr methodID, UnityEngine.jvalue[] args) [0x00000] in <filename unknown>:0 at UnityEngine.AndroidJavaObject._Call (System.String methodName, System.Object[] args) [0x00000] in <filename unknown>:0 at UnityEngine.AndroidJavaObject.Call (System.String methodName, System.OIs this the proper way to send a few bytes through the BT connection? Do I have to initialize a service first? (I do that in my Android Studio app, was trying to replicate in Unity)