大约有 3,000 项符合查询结果(耗时:0.0118秒) [XML]

https://www.fun123.cn/referenc... 

App Inventor 2 扩展 · App Inventor 2 中文网

...馈 App Inventor 2 扩展 « 返回首页 App Inventor 2 扩展 Initial Release 1.0 (Introduced as part of MIT App Inventor Release nb149) DRAFT: September 27, 2015 Updated: June 9, 2017 Updated: M...
https://bbs.tsingfun.com/thread-1828-1-1.html 

Error 507: unable to connect. is the device turned on? 无法连接,设备...

英文资料显示,可能是蓝牙设备问题未开机之类的,也可能是连接相关的代码写的不对,用的错误的地址连接等。 一般来说多是使用 hc05 经典蓝牙连接出现的问题,配对后没通电开机,会报这个错误。配对后硬件发生变...
https://bbs.tsingfun.com/thread-2380-1-1.html 

micro:bit 连接报错 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...运行故障 java.lang.ExceptionInInitializerError at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.subscribeBluetoothLEint.java:357) at edu.mit.appinventor.ble.BluetoothLEintSBLEReadOperation.run(BluetoothLEint.java:325) at android.os.Handler.handleCallback(Handler.java:1013) at androi...
https://stackoverflow.com/ques... 

How to print Unicode character in Python?

...o write results to a file. This solved it for me. – Pål Thingbø Oct 18 '17 at 8:52 Thank you so much. Spent hours go...
https://stackoverflow.com/ques... 

How does one unit test routes with Express?

...ered Nov 17 '15 at 8:30 Marcus RådellMarcus Rådell 54244 silver badges1111 bronze badges ...
https://stackoverflow.com/ques... 

Ruby: How to get the first character of a string

How can I get the first character in a string using Ruby? 13 Answers 13 ...
https://stackoverflow.com/ques... 

Excel to CSV with UTF8 encoding [closed]

...characters with random junk characters. Tested for characters including é,è,â... Don't know if it's real UTF8 but the characters aren't mangled. – user56reinstatemonica8 Jul 30 '13 at 16:28 ...
https://bbs.tsingfun.com/thread-1808-1-1.html 

mac地址错误如何解决 - 创客硬件开发 - 清泛IT社区,为创新赋能!

我照着视频内容做的蓝牙连接模块,可是连接的时候显示蓝牙mac地址错误,换了几个不同的蓝牙设备都是这样。请教一下为什么会这样,怎么解决。连接的参数错误,要传当前的选中项目,而非全部设备的列表:
https://bbs.tsingfun.com/thread-1864-1-1.html 

AI伴侣的权限问题 - App应用开发 - 清泛IT社区,为创新赋能!

...权限,对此查看它所有的权限,如下图,发现没有相关的蓝牙一系列权限的总开关,图里的附近设备里的选项的点进去都是一些解释,没有涉及开启的功能 我也去查看别的一些软件,如下图,它的所有权限是有个读取设备...
https://bbs.tsingfun.com/thread-2352-1-1.html 

Mind+ 掌控板、ESP32开发板等硬件如何接入AppInventor? - 创客硬件开发 - ...

...通信方式,及使用什么组件。一般不外乎2种方式: 1、蓝牙(经典蓝牙),使用 蓝牙客户端 组件。Mind+ 参考代码如下: 2、WIFI(TCP服务器),使用ClientSocketAI2Ext 拓展。