read failed, socket might closed or timeout, read ret: -1 · Issue #18 · edufolly/flutter_bluetooth_serial · GitHub
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android - Getting a strange NPE in one of my Bluetooth classes, it didn't happen before - Stack Overflow
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Bluetooth conection problem/Fail Message in the Browser - #13 by Anke - Bugs and Other Issues - MIT App Inventor Community
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android-arduino-bluetooth/android/BluetoothDemo/app/src/main/java /edu/stanford/me202/bluetoothdemo/BluetoothThread.java at master · hmartiro/ android-arduino-bluetooth · GitHub
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