trackr bluetooth device

Today, someone sent me a very beautiful Bluetooth speaker, in the evening to come back can not wait to try,Try it first with the phone, it's ready, and the sound quality is very good. Thinking about it and seeing it on the computer., pairing is a success, that is, the voice can not be issued from the Bluetooth speaker, and finally a nightThe following temporary solution was found.===========================

OverviewSince Android 5.0, Google has added support for Android phones as a low-power Bluetooth peripheral, the service side. Enables mobile phones to communicate with each other through low-power Bluetooth.Development stepsIn fact, this function only needs to be divided into setting up the broadcast and setting up a server two parts to completeSetting up the serverThe main operation of this step is bluetoothgattserver.1. Define a Bluetoothgattserverc

The Android system will first read the value of the btm_def_local_name, and if it is empty, use "Ro.product.model" as the Bluetooth device name.system/bt/btif/src/btif_dm.cc#define PROPERTY_PRODUCT_MODEL "ro.product.model"......static char* btif_get_default_local_name() { if (btif_default_local_name[0] == '\0') { int max_len = sizeof(btif_default_local_name) - 1; if (BTM_DEF_LOCAL_NAME[0] != '\0') {

1. Start the bluetooth device Sudo/etc/init. d/Bluetooth restart Or Sudo/etc/init. d/bluez-utils restart 2. Use hcitool Dev to view Bluetooth devices on the computer Teapot @ teapot :~ $ Hcitool Dev Devices: Hci0 00: 16: Cf: DB: B4: BF Teapot @ teapot :~ $ 3. Install the

Windows Vista system, once connected to the Bluetooth device will be in the computer residue of an icon, how to delete it? Operation Steps: Double-click on the bottom right of the screen to notify the area of the Bluetooth icon or right-click, as shown in the following image, in the Bluetooth

Recently in the porting QQ IoT protocol, you need to read the device MAC address.Read the CC2541 device MAC address method, there is a direct read Mac register, you can also call the protocol stack API. This takes the form of a call API.1 /*use the protocol stack API to read MAC addresses*/2 StaticUint8 macaddr[b_addr_len]={0};//MAC address3uint8_t macstr[ -] = {0};4 5 Gaprole_getparameter (gaprol

native code, while in the green is Java code. The top thread: inputdevicereader is the control center of the entire input process (in Android 4. x, this thread is in inputmanager. cpp ). This thread reads the input devices in the/dev/input directory of Linux Through eventhub: getevent () to obtain the hardware key input. Based on a key layout map associated with each input device, the key input is mapped to a key that can be recognized by Android.Cod

Today, I used bluez's lib to write a small Program Debugging, running through. Have a preliminary understanding of Bluetooth programming in Linux. This function is used to search for other Bluetooth devices and obtain their friendly device names. # Include # Include # Include # Include # Include # Include Int main (INT argc, char ** argv){Inquiry_info

1. A callback method is sent to the Bluetooth device when it sends write datacallback after data is written-(void) Peripheral: (cbperipheral *) Peripheral Didwritevalueforcharacteristic: (cbcharacteristic *) Characteristic error: (nullable nserror *) error Because the device on our side is a blood pressure meter, it is sent to the peripheral to start the meas

If Bluetooth is paired and connected manually, get the connected device:1. Check the connection status:Java code int A2DP = Bluetoothadapter.getprofileconnectionstate (BLUETOOTHPROFILE.A2DP); int headset = bluetoothadapter.getprofileconnectionstate (Bluetoothprofile.headset); int health = bluetoothadapter.getprofileconnectionstate (bluetoothprofile.health); 2, depending on whether th

In Android, the listening of Bluetooth device buttons is the same as the listening of general system buttons, but it only processes different keyevents. Here we will talk about the value of the previous and next keyevents sent by bluetooth, Listen to and perform corresponding processing. Public Boolean onkeydown (INT keycode, keyevent event) {Switch (keycode)