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AppInventor2如何通过socket给网络发16进制的数据? - App应用开发 - 清泛I...

...方法,可以赐教吗?软件只能发ASCLL码?没办法收发HEX,蓝牙组件的有写字节功能,TCP网络组件没有。 答: 发送文本消息时,hexaStringMode设为 false;发送16制消息时,hexaStringMode设为 true,例如:0x012 —> “303132” 字符串...
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APP INVENTOR硬件交互学习教程02——资源介绍 - 创客硬件开发 - 清泛IT社区...

...外发射和接收,方便进行红外解码,红外发射实验 6.蓝牙模块插座,方便扩展配置 7.一路继电器,可以进行大功率设备控制实验 8.一路蜂鸣器,可以进行一些报警实验。 9.其他扩展外设模块,WS2812,舵机,RF模块...
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【客户反馈】增加直接改项目名称的功能 - 用户反馈 - 清泛IT社区,为创新赋能!

...有些思路在名字上有体现会比较好。比如我一开始只做了蓝牙模块控制,名字ble,后面又加wifi,项目名称改的话就是wifi+ble。 ---------------------- 感谢反馈,采纳此条建议,改名功能推进中,敬请期待!已支持并上线:https://b...
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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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How to save and restore multiple different sessions in Vim?

... 507 You want something like :mksession ~/mysession.vim Then later you can source that vim file ...
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What is the difference between the 'COPY' and 'ADD' commands in a Dockerfile?

... 507 COPY is Same as 'ADD', but without the tar and remote URL handling. Reference straight f...
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How does this giant regex work?

...; That etc is a whole mess of php code encoded in base 64. Functions are error-escaped. eval($_POST) everywhere. – bob-the-destroyer Jul 25 '10 at 6:22 ...
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为AppInventor2开发自己的拓展(Extension) - App Inventor 2 拓展 - 清泛IT社区,为创新赋能!

...VIOR,      description = "操作成功后不显示提示信息,默认 false。")  public boolean SuppressToast() {    return suppressToast;  }  @DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_BOOLEAN,  &n...
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Can I export a variable to the environment from a bash script without sourcing it?

... answered May 17 '13 at 21:32 V HV H 7,40922 gold badges2323 silver badges4343 bronze badges ...
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MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区,为创新赋能!

... Labs的Kevin Ashton为了把宝洁的供应链上的RFID标签和互联网连接起来,在1999年第一个提出了IoT这个概念。发明人TCP协议的发明人是Vinton Cerf(下图左,曾在IBM工作过两年)和Robert Elliot Kahn(下图右)。 MQTT的发明人是IBM的Andy Stanf...