大约有 1,100 项符合查询结果(耗时:0.0082秒) [XML]

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APP INVENTOR硬件交互学习教程03——巧借arduino nano 配置HC-05 - 创客硬...

1.HC-05模块有两种模式 配置模式:进入方式,上电前按住模块按键,通电LED慢闪即进入配置模式,默认波特率38400,数据为8,停止位1 通信模式:不按下按键,上电就是这个模式,默认串口波特率9600,数据位8,停止位1 2.ardu...
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BLE &APP交互学习教程02——接收指令 - 创客硬件开发 - 清泛IT社区,为创新赋能!

BLE模块性价比高,无需配对就可以连接使用,本节开始,我们来学习使用BLE接收并显示。1.界面设计 2.逻辑设计 3.APP工程 4.小结 BLE模块的发送和接收短接,APP发送来的数据模块接收后显示在输入框内。
https://bbs.tsingfun.com/thread-3129-1-1.html 

米思齐(Mixly) × App Inventor2 接入调研报告:技术路线、接入步骤与教程...

...路线(按场景选型) • 经典蓝牙 SPP:Arduino + HC-05/06 模块 → App Inventor2 BluetoothClient 组件 → 难度★★ • BLE 蓝牙:ESP32 / 掌控板 / Micro:bit → BluetoothLE 扩展 → 难度★★★ • WiFi(TCP/UDP):ESP32/ESP8266 → Web 组件或 WiFi 扩展 → ...
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Quora如何在快速开发中保持高品质代码 - 项目管理 - 清泛网 - 专注C/C++及内核技术

...,这样便能长期受益。 我们实现了一个简单的系统,在模块/目录等级的代码“ownership”上添加标签,例如: __reviewer__ = 'vanessa, kornel' 如果提交新变更,系统就自动会分析文件(或其上层目录),将新审查者的名字添加到提...
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PHP中9大缓存技术总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...容'); $get = $memcache->get($key); //获取信息 ?> 7、apache缓存模块 apache安装完以后,是不允许被cache的。如果外接了cache或squid服务器要求进行web加速的话,就需要在htttpd.conf里进行设置,当然前提是在安装apache的时候要激活mod_cache...
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App Inventor 2 经典蓝牙(SPP) 硬件接入:hc05 · App Inventor 2 中文网

...,但是hc05尤为常见,这里以hc05为例,介绍一下经典蓝牙模块如何接入AppInventor。 HC05 简单介绍 它有六个引脚,引脚的作用如下: 通过厂商App连接串口测试,发现HC-05模块是经典蓝牙2.0,并不支持蓝牙5.0(...
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How to compare binary files to check if they are the same?

... I ended up using hexdump to convert the binary files to there hex representation and then opened them in meld / kompare / any other diff tool. Unlike you I was after the differences in the files. hexdump tmp/Circle_24.png > tmp/hex1.txt h...
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Hash String via SHA-256 in Java

...tes(StandardCharsets.UTF_8)); byte[] digest = md.digest(); String hex = String.format("%064x", new BigInteger(1, digest)); System.out.println(hex); } } In the snippet above, digest contains the hashed string and hex contains a hexadecimal ASCII string with left zero padding. ...
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Why are hexadecimal numbers prefixed with 0x?

Why are hexadecimal numbers prefixed as 0x ? I understand the usage of the prefix but I don't understand the significance of why 0x was chosen. ...
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Assembly code vs Machine code vs Object code?

...entation of machine code: mov eax, 77 jmp anywhere Machine code is pure hexadecimal code: 5F 3A E3 F1 I assume you mean object code as in an object file. This is a variant of machine code, with a difference that the jumps are sort of parameterized such that a linker can fill them in. An assem...