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BLE UUID是对的但连接闪退：java.lang.IllegalArgumentException: UUID str...
请问UUID是对的 连接闪退，
下面是报错日志
java.lang.ExceptionInInitializerError
at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.subscribe(BluetoothLEint.java:357)
at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.run(BluetoothLEint.java:325)
at android.os....
micro:bit 连接报错 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...应的mrico：bit地址了，在连上的一瞬间后直接闪退，并且报错了。
运行故障
java.lang.ExceptionInInitializerError at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.subscribeBluetoothLEint.java:357) at
edu.mit.appinventor.ble.BluetoothLEintSBLEReadOperation.run(Blue...
- App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...表。
但是：经过实际测试，该方法可能不准确，或者报错。具体可以自己尝试。
2、最准确、靠谱的方式：问ble硬件厂商要，大部分人（包括我在内）都是这么获取到的服务id和特性id的。
3、软件探测：
nFC Connect低功耗...
Service and Characteristic are not published by the connected device -...
Service and Characteristic are not published by the connected device，报错如下：
问题原因：硬件/蓝牙芯片问题导致的，比如A硬件测试好的，换了B硬件没有修改uuid，就出现这个报错。
由于B硬件没有发布这些特征，就会报这个错误。
How to create a GUID/UUID in Python
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The uuid module, in Python 2.5 and up, provides RFC compliant UUID
generation. See the module docs and the RFC for details. [source]
Docs:
Python 2: http://docs.python.org/2/library/uuid.html
Python 3:
https://docs.python....
App Inventor 2 低功耗蓝牙 BlueToothLE 拓展 · App Inventor 2 中文网
...-> 连接指定设备（也可指定MAC地址连接）-> 设备指定服务uuid和特征uuid 发送 / 接收 数据。
广播
现在常规便宜芯片并无蓝牙协议栈，只能通过人工拼包用最简单的蓝牙广播方式通信，可以做到手机与设备进行简单的交互。
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When should I use uuid.uuid1() vs. uuid.uuid4() in python?
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uuid1() is guaranteed to not produce any collisions (under the assumption you do not create too many of them at the same time). I wouldn't use it if it's important that there's no connection between the uuid and the computer,...
How can I use UUIDs in SQLAlchemy?
Is there a way to define a column (primary key) as a UUID in SQLAlchemy if using PostgreSQL (Postgres)?
9 Answers
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Is there any difference between a GUID and a UUID?
...und, and I was wondering if there are any differences between a GUID and a UUID?
6 Answers
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Create a GUID in Java
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Have a look at the UUID class bundled with Java 5 and later.
For example:
If you want a random UUID you can use the randomUUID method.
If you want a UUID initialized to a specific value you can use the UUID constructor or the fromString met...