Questions tagged [characteristics]
113 questions
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Gatttool "Characteristic Write Request failed:" How to reduce fail timeout for read/write?
I'm reading and writing the characteristics from my board using bluez-4.101. using gatttool.
sometimes i get Characteristic Write Request failed: or read failed.
Frequency of these errors is like 2/10, is there something that i can do to make full…
brajesh
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Reading Stick'n'Find BLE beacons
I am using a generic BLE plugin for PhoneGap when developing a BLE enabled application. It gives me beacons identification and RSSI, but reading more advanced attributes like battery status or TX power require specific communication with a beacon,…
user3523426
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Camera2 characteristics code example
guys who can give me an example how to use camera2 characteristics in android?
F.e. how to use CONTROL_EFFECT_MODE_SEPIA effect ?
Have tried to use characteristics.get(CameraCharacteristics.CONTROL_EFFECT_MODE_SEPIA), but it gave me an The method…
user0770
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Subscribe to a characteristic and catch the value Android
I´m developing an BLE app, based on the Gatt sample project provided by google: https://developer.android.com/samples/BluetoothLeGatt/index.html. So, I can send data writing in a characteristic successfully. Now I need to know when this…
Orlando
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implementing BLE app without knowing UUIDS
i am implementing an android app using BLE technology. the bluetooth device has been designed to measure the temperature. it uses cc2541 from TI.the hardware test using BTool Bluetooth low Energy Pc application v1.40.5 is interacting fine withe the…
user3893997
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Null pointer exception on writeCharacteristic Android
I am trying to perform a ble write to a microprocessor on an android application and something weird is happening.
To start, the log for the error is below:
Unhandled exception in callback
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thenry
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What does value = (null) means?
mond
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Name three important characteristics of a controller
I have a quick question about the controller.
I need to know three important characteristics of a controller?
