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BLE数据收发 20个字节的限制问题 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...的最大传输单元 (MTU)。此功能仅在两个设备都支持蓝牙 4.2 或更高版本时才受支持。如果 MTU 更改成功,则 MTUChanged 事件将被触发。默认 MTU 为 20。 来源中文文档:https://www.fun123.cn/reference/iot/bluetoothle.html App Inventor 2  发...
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App日志及内置WebView的调试方法 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...进入开发者模式; 3、进入设置-系统-开发者选项; 4、启用USB调试,允许使用ADB与模拟器通信; 5、打开命令行,通过以下adb命令连接模拟器:(手机的话,插上数据线就行了) adb connect 127.0.0.1:7555复制代码 6、输入adb devi...
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Modbus硬件控制01——什么是Modbus - 创客硬件开发 - 清泛IT社区,为创新赋能!

...对应部分,一般来说大部分的设备都是Modbus-RTU协议的。4.通讯过程4.通讯过程Modbus是主从方式通信,也就是说,不能同步进行通信,总线上每次只有一个数据进行传输,即主机发送,从机应答,主机不发送,总线上就没有数据通...
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align text center with android

... peter.bartospeter.bartos 10.2k22 gold badges4444 silver badges6060 bronze badges ...
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How to search by key=>value in a multidimensional array in PHP

... | edited Mar 5 '14 at 15:39 Aaron Harun 21.7k88 gold badges4242 silver badges6161 bronze badges ...
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Can you add new statements to Python's syntax?

...stmt: 'until' test ':' suite */ REQ(n, until_stmt); if (NCH(n) == 4) { expr_ty expression; asdl_seq *suite_seq; expression = ast_for_expr(c, CHILD(n, 1)); if (!expression) return NULL; suite_seq = ast_for_suite(c, CHILD(n, 3)); if...
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What does Maven do, in theory and in practice? When is it worth to use it? [closed]

... Crt 3,31833 gold badges3030 silver badges4141 bronze badges answered Nov 11 '12 at 21:03 SledSled 15.7k2121 gold badges...
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Remove a JSON attribute [duplicate]

... | edited Aug 2 '09 at 19:40 answered Aug 2 '09 at 19:35 Jo...
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How to parse JSON using Node.js? [closed]

... edited Sep 17 '18 at 12:34 Hank Chan 78699 silver badges1515 bronze badges answered Apr 20 '11 at 7:13 ...
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Const in JavaScript: when to use it and is it necessary?

... 468 There are two aspects to your questions: what are the technical aspects of using const instead...