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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。
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AppInventor写二进制文件 - App应用开发 - 清泛IT社区,为创新赋能!

...二进制文件:https://www.fun123.cn/reference/iot/bytearray.html 蓝牙等组件返回的字节列表(list),目前不能直接追加到拓展中,可以采用遍历字节列表,然后将字节逐一将追加到拓展中,最后调用拓展方法保存为二进制文件。
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2026 新年第一篇:即将全面支持苹果iOS App编译生成,纯血鸿蒙计划中,编译...

...身不可用,iOS 支持很多常用功能作为内置 Blocks/组件:蓝牙支持(Bluetooth)NFC(Near Field Communication)物联网扩展(例如 micro:bit)AI 扩展基础支持(如 PersonalImageClassifier 等) 这些是在 iOS 原生支持层面集成的,而非通过插件机...
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- App应用开发 - 清泛IT社区,为创新赋能!

...还是可以正常接收到数据的,而且这个错只是第一次链接蓝牙的时候,获取数据,会报这个错,后面就不会了。 A:也就是说 uuid 和特征 id 是有效的? 我找到原因了,之前用AI助手检查问题,他直接把我的程序改了,改回...
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Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java?

... answered Feb 16 '16 at 2:05 yanghaognyanghaogn 67155 silver badges1414 bronze badges ...
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Are HLists nothing more than a convoluted way of writing tuples?

... answered Aug 6 '12 at 10:05 Miles SabinMiles Sabin 22.6k66 gold badges5858 silver badges9595 bronze badges ...
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How to convert a selection to lowercase or uppercase in Sublime Text

... The Vee 10.4k55 gold badges2222 silver badges5050 bronze badges answered Sep 12 '13 at 20:36 arturomparturomp 25k1010 gold b...
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C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术

...7,32767); m_allmsg.ReplaceSel(msg); }else{ MessageBox("无法连接到服务器!"); closesocket(sock); WSACleanup(); } } GetDlgItem(IDC_DISCONNECT)->EnableWindow(TRUE); GetDlgItem(IDC_SEND)->EnableWindow(TRUE); GetDlgItem(IDC_CHANGENAME)->EnableWindow(TRUE)...
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Select unique or distinct values from a list in UNIX shell script

...s too. – Mingye Wang Dec 9 '15 at 5:05 I figured out that uniq seams to process only adjacent lines (at least by defau...
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Copy a table from one database to another in Postgres

... answered May 23 '13 at 8:05 thomaxthomax 6,98233 gold badges4343 silver badges6060 bronze badges ...