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Jasonchenlijian / FastBle

Android Bluetooth Low Energy (BLE) Fast Development Framework. It uses simple ways to filter, scan, connect, read ,write, notify, readRssi, setMTU, and multiConnection.
Apache License 2.0
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如何根据多个mac地址扫描 #518

Open cetuer opened 3 years ago

cetuer commented 3 years ago

如何根据多个mac地址扫描蓝牙设备，貌似只能配置一个mac

massimilianochiodi commented 3 years ago

You can scan by applying the filter for a service or characteristic

Example for java :

public static final UUID BLUETOOTH_WALLBOX_SERVICE = UUID.fromString( "331a36f5-2459-45ea-9d95-6142f0c4b307");

UUID[] listauuid = new UUID[] {Costanti.BLUETOOTH_WALLBOX_SERVICE};
String device_name = "";
String device_mac = "";
BleScanRuleConfig scanRuleConfig = new BleScanRuleConfig.Builder()
.setServiceUuids( listauuid )
.setDeviceName(true, device_name )
.setDeviceMac( device_mac )
.setAutoConnect(false)
.setScanTimeOut(BLUETOOTH_WALLBOX_SCANPERIOD)
.build();
BleManager.getInstance().initScanRule(scanRuleConfig);

BleManager.getInstance().scan(new BleScanCallback() {
massimilianochiodi commented 3 years ago

BLUETOOTH_WALLBOX_SCANPERIOD = 5000; !

cetuer commented 3 years ago

You can scan by applying the filter for a service or characteristic

Example for java :

public static final UUID BLUETOOTH_WALLBOX_SERVICE = UUID.fromString( "331a36f5-2459-45ea-9d95-6142f0c4b307");

UUID[] listauuid = new UUID[] {Costanti.BLUETOOTH_WALLBOX_SERVICE};
String device_name = "";
String device_mac = "";
BleScanRuleConfig scanRuleConfig = new BleScanRuleConfig.Builder()
.setServiceUuids( listauuid )
.setDeviceName(true, device_name )
.setDeviceMac( device_mac )
.setAutoConnect(false)
.setScanTimeOut(BLUETOOTH_WALLBOX_SCANPERIOD)
.build();
BleManager.getInstance().initScanRule(scanRuleConfig);

BleManager.getInstance().scan(new BleScanCallback() {

不知道为什么，我的蓝牙设备不能直接得到UUID，只能通过解析ScanRecord得到，通过UUID过滤是不成功的

massimilianochiodi commented 3 years ago

Your device probably has a dynamic UUID, that is, it can change or it has hidden uuid Or it is not yet a 'commercial' device or correctly registered with the bluetooth consortium...

It is not a problem that cannot be solved: 1) you must know the advertising record perfectly 2) you must always read all nearby devices during the scan, because you have to compare all scan records (adverstising record) Then surely only by knowing your enemy can you win the battle!

Can you tell me which is your device? Maybe, I can help you, you see ... I wrote the app for the wallbox of one of the most important car manufacturers in the world that uses a custom bluetooth.

cetuer commented 3 years ago

Your device probably has a dynamic UUID, that is, it can change or it has hidden uuid Or it is not yet a 'commercial' device or correctly registered with the bluetooth consortium...

It is not a problem that cannot be solved:

  1. you must know the advertising record perfectly
  2. you must always read all nearby devices during the scan, because you have to compare all scan records (adverstising record) Then surely only by knowing your enemy can you win the battle!

Can you tell me which is your device? Maybe, I can help you, you see ... I wrote the app for the wallbox of one of the most important car manufacturers in the world that uses a custom bluetooth.

我使用安卓原生的api进行扫描发现身边所有的蓝牙设备获得的name和uuis全都是null，只有address有值，如图所示： 其中scanFilters我没有添加任何项目，buildDefaultScanSettings函数使用默认参数 image image 日志输出如下： image 我参考了厂家给出的实例apk，按照这个方法解析ScanRecord类获得的字节码就能得到UUID，其中scanData数组是ScanRecord.getBytes()方法获得的值 image 所以根据uuid来扫描设备永远扫描不到任何设备，只有根据address才可以

kingiis commented 3 years ago

如何根据多个mac地址扫描蓝牙设备，貌似只能配置一个mac

你可以默认搜索,找到就用 断开就走回调断开。 当一个设备太频繁的时候 Android这边会把你踢掉。板子那边会出现卡死的情况