Eve Energy App Andriod
Sorry, I realized I didnt replace the UUID strings. So I used the original BLEGATT app to get the services and characteristics for my module. After that I replaced them into my android app. I used the first available service for both read and write functions in the BluetoothServiceLE.java. I used the first 2 characteristics for the respective first service. One characteristic for read and the next one for write.
I can read but I cant write anything, I get Failed to Write Characteristic. Plus I dont get the jjj or 0xAA on the android app screen, I just get the bt device identifier when clicking on read, but nothing except the Failed Write logcat log when I tap on the write button. I wish I could go back and erase my previous posts. I was able to get the write to work bychanging the write characteristic to the second option. Hello, thank you very much: great tutorial!
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Could please help me? I have a proble with read function: i can write from android app to ARDUINO but I can not read information sent from ARDUINO to ANDROID APP.
I changed the 3 UUID that you wrote inside the GATT SERVICE and teh GATT CHARACTERISTICS:mCustomServicemReadCharacteristicmWriteCharacteristicI have this message from ANDROID: “Failed to write characteristic”. I do not change nothing inside the class SampleGattAttribute. I follow step by step you tutorial: I do not understand what I wrong.Thank you in advance.
Hi, I’m trying to connect via BLE 4.2 from my android device (android-6.0) to my EDK-NINA-B112 (a Development kit for the NINA-B112, which uses a nRF52832 chip). When I use the code of the tutorial, I get to the “scanning screen”, but I do not find any bluetooth devices at all. If I try using apps on the Google play store, I do however find my bluetooth device, and I can easily connect and send messages from and to the device.Is it a problem on the code site not supporting some of these components I just have been describing? Or might it be a problem between the android studio compiling and debugging on my phone?I can debug the code, put breakpoints in the scanning function, and it goes into the scanning function as it should, but it does not find any devices. I have also tried just running the app one the phone without debugging ofc. Hi, my name is Nick and I have implemented this BluetoothLeGatt code in my Android Studio.
It shows no errors. So I click run. It finishes with message: “Gradle Build successful”. I then can see the ADB and can choose. First time I had the Nexus 5X with API 22 on it. It ran the application but failed to load the UI on the virtuell device.
Toast message: BLE not supported. Seconde Toast message: Bluetooth not supported.
That is the Nexus 5X API 22 in Android Studio on Win10 Home edition. So the virtuell device loads but I can’t really do anything with it. I then chose to load the app on my real Android Phone the OneplusOne which started out with KitKat 4.4.4 but got upgraded twice and is now running Marshmallow 6.0.1. Its loading the app on the phone but it doesn’t show the UI with buttons on it. Like your phone is showing: Write Char, Read Char, no data.
That is not showing on the virtuell device nor on my real phone. It does show the top menu Bar with the BLE logo on the left. To the right it shows the scan button. I can click it but it won’t find my Bluetooth device.
The BLE device is from Adafruit, the Feather 32u4 with the Nordic chip nRF51822 on it. Again, on my real phone it won’t show the UI with the 2 buttons on it either. The build on the real phone is successful but with those Notes:Note: C:UsersNickHAndroidStudioProjectsBluetoothLeGattwritingreadingBluetoothLeGattwritingApplicationsrcmainjavacomexampleandroidbluetoothlegattDeviceScanActivity.java uses or overrides a deprecated API.Note: Recompile with -Xlint:deprecation for details.Note: C:UsersNickHAndroidStudioProjectsBluetoothLeGattwritingreadingBluetoothLeGattwritingApplicationsrcmainjavacomexampleandroidbluetoothlegattSampleGattAttributes.java uses unchecked or unsafe operations.Note: Recompile with -Xlint:unchecked for details. Thats a great tutorial, thank you so much!! However, I have a problem with the code; you previously mentioned that the UUIDs are hard coded, in the beginning I left them as is, but I had an error of “Custom BLE Service not found”. Therefore I showed the UUIDs of my edison and changed the one which was hard coded in the getService method and replaced it with my UUID: Generic Access Profile. So it worked and I don’t get that error anymore.
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Eve Energy App Android Phone
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