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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...
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...
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...
align text center with android
... peter.bartospeter.bartos
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How to search by key=>value in a multidimensional array in PHP
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edited Mar 5 '14 at 15:39
Aaron Harun
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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...
What does Maven do, in theory and in practice? When is it worth to use it? [closed]
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Crt
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answered Nov 11 '12 at 21:03
SledSled
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Remove a JSON attribute [duplicate]
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edited Aug 2 '09 at 19:40
answered Aug 2 '09 at 19:35
Jo...
How to parse JSON using Node.js? [closed]
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edited Sep 17 '18 at 12:34
Hank Chan
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answered Apr 20 '11 at 7:13
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Const in JavaScript: when to use it and is it necessary?
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There are two aspects to your questions: what are the technical aspects of using const instead...
