大约有 13,400 项符合查询结果(耗时:0.0088秒) [XML]

https://bbs.tsingfun.com/thread-1548-1-1.html 

BLE通信数据不能超过20字节? - 创客硬件开发 - 清泛IT社区,为创新赋能!

...没问题,用AI2就截断了,只有20字符。 答复: 1-在 ESP32 代码中,我放置了这一行:BLEDevice::setMTU(192); 2- 在应用程序中,我将调用 Request MTU 放在 .Connected 块上,请求相同的 192 字节; 就我而言,当我必须发送< 23字节的...
https://bbs.tsingfun.com/thread-2908-1-1.html 

有没有其他方式 在app上接收jpeg数据流变成视频? - App应用开发 - 清泛IT...

...方案:WebViewer 直接加载 MJPEG URL ⭐ 最简单有效,适合 ESP32-CAM、IP 摄像头等场景: 组件: WebViewer1 属性: HomeURL = "http://192.168.4.1/stream" EnableJavaScript = True 原理:MJPEG 本质是服务器连续发送 JPEG 帧,WebViewer 自动渲染成视...
https://www.fun123.cn/reference/iot/UDP.html 

App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网

...者开发动机 对于一个项目,应该开发一个与 ESP8266(项目)通信的 Android 应用程序。为了轻松开发应用程序,选择了 MIT App Inventor 2。 项目中可用的 ESP8266 设备的 IP 地址不应固定。应用程序本身应该确定哪些设备当前...
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How to recognize USB devices in Virtualbox running on a Linux host? [closed]

... I had a similar problem trying to connect my ESP8266 and ESP32 to a VirtualBox, this worked for me, thanks all. 1) sudo adduser $USER vboxusers 2) VirtualBox 6.1.6 Oracle VM ...
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How can I see the assembly code for a C++ program?

...bp) #, readme movl -16(%ebp), %eax # pid, pid movl %eax, 4(%esp) # pid, movl $.LC0, (%esp) #, call printf # share | improve this answer | f...
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Best way to do nested case statement logic in SQL Server

... a user-defined function may server better, at least to hide the logic - esp. if you need to do this in more than one query share | improve this answer | follow ...
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What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an

...ons of the i386 System V ABI (used on Linux) require 16-byte alignment of %esp before a call, like the x86-64 System V ABI has always required. Callees are allowed to assume that and use SSE 16-byte loads/stores that fault on unaligned. But historically, Linux only required 4-byte stack alignment,...
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Purpose of ESI & EDI registers?

...ASM in 1985). Among these are REP STOSB REP MOVSB REP SCASB Which are, respectively, operations for repeated (= mass) storing, loading and scanning. What you do is you set up SI and/or DI to point at one or both operands, perhaps put a count in CX and then let 'er rip. These are operations that w...
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What does 'foo' really mean?

...vity: Used very generally as a sample name for absolutely anything, esp. programs and files (esp. scratch files). First on the standard list of metasyntactic variables used in syntax examples (bar, baz, qux, quux, corge, grault, garply, waldo, fred, plugh, xyzzy, thud). [JARGON]...
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The difference between fork(), vfork(), exec() and clone()

...nkage int sys_fork(struct pt_regs regs) { return do_fork(SIGCHLD, regs.esp, &regs, 0); } asmlinkage int sys_clone(struct pt_regs regs) { unsigned long clone_flags; unsigned long newsp; clone_flags = regs.ebx; newsp = regs.ecx; if (!newsp) newsp = regs.esp; r...