bluetooth-lowenergy

来源： https://stackoverflow.com/questions/63336568/bluetooth-le-characteristic-values-only-read-once

来源： https://stackoverflow.com/questions/62910744/bluetooth-low-energy-characteristic-access-only-works-once

来源： https://stackoverflow.com/questions/51249335/how-to-extract-sfloat-value-from-bluetooth-le-data-for-1822-pulseoximeter-using

问题 Is it possible to transmit and receive beacon signals at the same time using an android device acting as a beacon? 回答1: Yes, on Android 5+ devices that support beacon transmission (see the list here), you can both send and receive beacon transmissions simultaneously. You can see a demonstration of this using the Android Locate app. Simply turn on a transmitter, then switch to locating beacons. If you do this on two Android phones at the same time, they will both see eachother's transmission.

问题 Is it possible to transmit and receive beacon signals at the same time using an android device acting as a beacon? 回答1: Yes, on Android 5+ devices that support beacon transmission (see the list here), you can both send and receive beacon transmissions simultaneously. You can see a demonstration of this using the Android Locate app. Simply turn on a transmitter, then switch to locating beacons. If you do this on two Android phones at the same time, they will both see eachother's transmission.

问题 I am working with the CC2650STK SensorTag. I have downloaded this open source app from GitHub: https://github.com/googlesamples/android-BluetoothLeGatt However, the app does not scan my BLE device and show on the list. If anyone can guide me or help me modify this code so that it can scan for my CC2650STK device. Your help is appreciated 回答1: Make sure that you set the following permissions: ACCESS_COARSE_LOCATION BLUETOOTH BLUETOOTH_ADMIN Hope this helps, 回答2: Try to use SensorTag App source

问题 I am working with the CC2650STK SensorTag. I have downloaded this open source app from GitHub: https://github.com/googlesamples/android-BluetoothLeGatt However, the app does not scan my BLE device and show on the list. If anyone can guide me or help me modify this code so that it can scan for my CC2650STK device. Your help is appreciated 回答1: Make sure that you set the following permissions: ACCESS_COARSE_LOCATION BLUETOOTH BLUETOOTH_ADMIN Hope this helps, 回答2: Try to use SensorTag App source

问题 Also, If I get a notification, is there a way to click it programmatically and bring the pairing request to to front? 回答1: for reference to explain why and what, please have a look here: Bluetooth pairing request on notification bar? The solution is quite easy if you know it and if it fits into your application: private void feintBluetoothDeviceDiscovery() { BluetoothAdapter btAdapter = BluetoothAdapter.getDefaultAdapter(); btAdapter.startDiscovery(); btAdapter.cancelDiscovery(); } Call

问题 Also, If I get a notification, is there a way to click it programmatically and bring the pairing request to to front? 回答1: for reference to explain why and what, please have a look here: Bluetooth pairing request on notification bar? The solution is quite easy if you know it and if it fits into your application: private void feintBluetoothDeviceDiscovery() { BluetoothAdapter btAdapter = BluetoothAdapter.getDefaultAdapter(); btAdapter.startDiscovery(); btAdapter.cancelDiscovery(); } Call

问题 I'm trying to use my Raspberry Pi 3B to communicate with a BLE enabled device which dosen't require a PIN. I first tried with Ionic on iOS using cordova BLE central (https://github.com/don/cordova-plugin-ble-central), which worked as expected, here is the exchanged packets : iOS (PacketLogger) May 21 07:59:36.825 Note 0x0000 Product: iPhone9,3 May 21 07:59:36.825 Note 0x0000 Software: Version 13.4 (Build 17E255) May 21 08:09:42.178 Config 0x0041 315X Connected: C4:64:E3:9B:04:44 - Handle: