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App Inventor 2 源码商店

... 蓝牙BLE硬件接入及IO控制 ...
https://bbs.tsingfun.com/thread-2216-1-1.html 

在APP Inventor的BLE组件使用RequestMTU方法之后,发送的字符数依旧限制在2...

目前APP是能连接蓝牙,也能传输数据,但是发送和接受的数据都是20字节的分包。使用BLE调试宝,在里面修改MTU,返回的值是512,并且是修改成功的,但是在编程中使用RequestMTU方式设置512,,并且读取返回值也是512,然后调用...
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。
https://www.tsingfun.com/it/tech/1708.html 

Discuz 找回密码时提示参数错误 - 更多技术 - 清泛网 - 专注C/C++及内核技术

Discuz 找回密码时提示参数错误source module member member_getpasswd.php第32行找到$uid = $_GET['uid'];在下方添加一行$sign = $_GET['sign'];tem...source\module\member\member_getpasswd.php 第32行找到 $uid = $_GET['uid']; 在下方添加一行 $sign = $_GET['sign']; t...
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How to include route handlers in multiple files in Express?

...rest api this pattern and put to the plesk hosting server, I am getting a error – MSM Feb 16 at 10:21 add a comment  |  ...
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How to change credentials for SVN repository in Eclipse?

... http://subclipse.tigris.org/wiki/PluginFAQ#head-d507c29676491f4419997a76735feb6ef0aa8cf8: Usernames and passwords Subclipse does not collect or store username and password credentials when defining a repository. This is because the JavaHL and SVNKit client adapters are int...
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Getting a File's MD5 Checksum in Java

...eInputStream? Sounds like you used FileInputStream, which would cause this error. – erickson Dec 17 '12 at 17:16 ...
https://bbs.tsingfun.com/thread-2263-1-1.html 

用户反馈ble广播数据收不到 - 用户反馈 - 清泛IT社区,为创新赋能!

...货 https://e.tb.cn/h.6aRrSlnXdQZHKA3?tk=lQbTeqbXx8Z CZ225 「主从一体蓝牙模块串口无线通信高速透传输模组BLE5.3低功耗BT36」 点击链接直接打开 或者 淘宝搜索直接打开 清泛: 我其他 ble 硬件应该也能收发广播 清泛: 后面试试 MCU&amp...
https://www.tsingfun.com/it/cpp/1700.html 

为什么编译好的libcurl静态lib用不了? - C/C++ - 清泛网 - 专注C/C++及内核技术

...如上图编译静态成静态lib,使用这个静态lib的时候,就会提示link2001未定义的外部符号,头文件、lib文件均已正常导入。解决 编译Dll能用,但如上图编译静态成静态lib,使用这个静态lib的时候,就会提示link2001未定义的外部...
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Name node is in safe mode. Not able to leave

...d: bin/hadoop dfsadmin -safemode leave You are getting Unknown command error for your command as -safemode isn't a sub-command for hadoop fs, but it is of hadoop dfsadmin. Also after the above command, I would suggest you to once run hadoop fsck so that any inconsistencies crept in the hdfs mig...