bluetooth 4 0 ble

code can be clearly viewed and conveniently called. The tool class is BleManager. Private effecthadapter mblustmthadapter; Private effecthdevice mblustmthdevice; Private effecthgatt mblustmthgatt; Private boolean isScanning = false; // The objects defined above are useful in the following methods. (We recommend that you read the articles no matter who you are reading, first, we should familiarize ourselves with the meaning and basic functions of the above or some

[Bluetooth Low-Power BLE] Introduction, low-power ble Introduction As the blog directory, set the topic first, and add the link after writing! I. Basic USE OF THE CC254X Chip 1. Bluetooth Low-Power BLE controls GPIO to light LEDs 2. Use of

[" + descriptor.getuuid () + "]:n" + response); } @Override public void Ondescriptorwriterequest (final bluetoothdevice device, int RequestID, Bluetoothgattdescripto R Descriptor, Boolean Preparedwrite, Boolean responseneeded, int offset, byte[] value) {//Get data sent by the client Stri ng valuestr = arrays.tostring (value); LOG.I (TAG, String.Format ("ondescriptorwriterequest:%s,%s,%s,%s,%s,%s,%s,%s", Device.getname (), Device.getAddress ( ), RequestID, Descriptor.getuuid (), Pre

First, Key concepts:Generic Attribute profile (GATT)through BLE connection, read and write the profile General specification of the attribute class small data. All BLE application profiles are now based on GATT. Attribute Protocol (ATT)GATT is based on the ATT protocol. The ATT has been specifically optimized for BLE devices by using as little data as possible du

Original URL: http://www.cnblogs.com/savagemorgan/p/3722657.htmlFirst, Key concepts:Generic Attribute profile (GATT)Through BLE connection, read and write the profile General specification of the attribute class small data. All BLE application profiles are now based on GATT.Attribute Protocol (ATT)GATT is based on the ATT protocol. The ATT has been specifically optimized for

First, Key concepts:Generic Attribute profile (GATT)Through BLE connection, read and write the profile General specification of the attribute class small data. All BLE application profiles are now based on GATT.Attribute Protocol (ATT)GATT is based on the ATT protocol. The ATT has been specifically optimized for BLE devices by using as little data as possible dur

, authentication and properly end) is only 3ms. Standard Bluetooth technology requires hundreds of milliseconds to complete the same connection cycle. Again, the longer the wireless is switched on, the more battery energy is consumed. Ii. Key Concepts: (1) Generic Attribute profile (GATT) Profile general specification for reading and writing attribute-class data through BLE

interface programmingThe Androidble interface is provided above the android4.3 version.1. Determine if the current system supports BLEGetpackagemanager (). Hassystemfeature (Packagemanager. Feature_bluetooth_le)Returns true representation support.2. Get the Bluetooth adapter classUsers use the BLE API through a unified Bluetooth adapter class Bluetoothadapter.G

Byte to hexadecimal string public static string bytes2hexstring (byte[] bytes) { string ret = ' "; for (byte abyte:bytes) { String hex = integer.tohexstring (Abyte 0xFF); if (hex.length () = = 1) { hex = ' 0 ' + hex; } RET + hex.touppercase (Locale.china); } return ret; } /** * Converts a 16-binary string to a byte array * * @param message * @return byte array /public static by

device runs properly and needs to determine if the device supports BLE feature when the code is running: if (! Getpackagemanager (). Hassystemfeature (Packagemanager.feature_bluetooth_le)) { 　　// does not support ble finish ();}(1) Implement the BluetoothAdapter.LeScanCallback interface, the BLE device search results will be returned through this callback

This article describes how to implement Ble Bluetooth, a small program. The source code download is provided, which has good reference value. Next let's take a look at the small Editor. This article mainly introduces the implementation of Ble Bluetooth, a small program. The source code download is provided, which has g

;}};Privatevoidwritecharacteristic(){.....mgattcharacsetintensity.SetValue(Data);mgattcharacsetintensity.Setwritetype(bluetoothgattcharacteristic.Write_type_default);Mbluetoothgatt.writecharacteristic(mgattcharacsetintensity);return;} Edit:i has a comparison with iPhone (a ble transfer data app from AppStore), the BLE transfer data are very quick (less t Han 0.5 sec), so impressive. How can we work around t

This article describes the android BLE Bluetooth 4.0, that is, API level >= 18, and Bluetooth 4.0 mobile phone can be used, if the phone system version API level First send the official demo, interested in the past to see: http://developer.android.com/guide/topics/connectivity/bluetooth-le.html. Android system more tha

This article describes the android BLE Bluetooth 4.0, that is, API level >= 18, and Bluetooth 4.0 mobile phone can be used, if the phone system version API level first send the official demo, interested in the past to see: http://developer.android.com/guide/topics/connectivity/bluetooth-le.html. Android system more tha

+ -]); LOG.D ("BLE", Bytestohex (Scanrecord)); LOG.D ("BLE","Name:"+ Ibeaconname +"\nmac:"+ Mac +"\nuuid:"+ UUID +"\nmajor:"+ Major +"\nminor:"+ minor +"\ntxpower:"+ Txpower +"\nrssi:"+ Rssi); LOG.D ("BLE","Distance:"+calculateaccuracy (Txpower,rssi)); } } };Static Final Char[] Hexarray ="0123456789ABCDEF". ToCharArray ();Private StaticStringBytestohex

 Bluetooth 4.0/ble protocol Stack Learning notes (i) Required Software tools: 1. BLE protocol stack (ble-cc254x-1.4.0) 2. IAR development software (IAR Embedded Workbench8.20.2) Note: The 1.4.0 protocol stack uses the 8.20.2 version of IAR, the 1.3.2 protocol stack, etc., using the 8.10.4 IAR version.

The ibeacon module used in this article is April Beacon, as to what is ibeacon. This article does not explain, the specific please self-examination. The information that a April beacon carries is as follows 0201061AFF4C0002159069BDB88C11416BAC3F33468C2788A3044B0378C60C09417072696C426561636F6E051250002003020A0000000000000000000000 What do you mean, exactly? Bytes the follow in first ad STRUCTURE01 flags AD type06 Flags Value 0x1A = 000011010 bit 0