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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!

...户反馈,BLE好像有20字节(字符)限制,难道要破开多次传输?如果用专门的安卓调试软件就没问题,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...
https://bbs.tsingfun.com/thread-1560-1-1.html 

BLE 模块 透传问题 - 创客硬件开发 - 清泛IT社区,为创新赋能!

问一下老师  1.这个蓝牙传输一次,是一个多字节包?还是单一个字节?                      2.我想传文件,是否要先设变量读进数据?有哪位老师给讲一下。 根据 ble ...
https://www.tsingfun.com/it/te... 

WCF:使用Array替代List - 更多技术 - 清泛网 - 专注C/C++及内核技术

...Array-instead-of-List-in-WCF 最近我正在开发一个在消息报文中传输image的函数,因此习惯性地在消息类中建立了一个类似这样的属性:public List<byte> Image { get; set; } Image数据通过duplex channel传到客户端,你能想象我是多么惊讶地看到服...
https://bbs.tsingfun.com/thread-1602-1-1.html 

请教一个有关WEB 客户端 1的问题 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

我做了一个测试,借助WEB 客户端 1 通过 URL将参数传输给下图中地址并调用一个PHP文件,但是出现了错误信息“ERROR 1101:unable to get a response with the specified url" 我直接通过浏览器传输,显示结果正确。借助WEB浏览框如下图所示那...
https://bbs.tsingfun.com/thread-1969-1-1.html 

- App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...一下测试,如果有限制,则要考虑源头压缩图片后再base64传输。 注:图片base64一般在原文件大小基础上膨胀50%左右。 --------------------- PS:300KB以上也测试成功了,图片分辨率较高,不过速度非常非常慢,分钟级别。。。可...
https://bbs.tsingfun.com/thread-2216-1-1.html 

在APP Inventor的BLE组件使用RequestMTU方法之后,发送的字符数依旧限制在2...

目前APP是能连接上蓝牙,也能传输数据,但是发送和接受的数据都是20字节的分包。使用BLE调试宝,在里面修改MTU,返回的值是512,并且是修改成功的,但是在编程中使用RequestMTU方式设置512,,并且读取返回值也是512,然后调用...
https://bbs.tsingfun.com/thread-2263-1-1.html 

用户反馈ble广播数据收不到 - 用户反馈 - 清泛IT社区,为创新赋能!

...tk=lQbTeqbXx8Z CZ225 「主从一体蓝牙模块串口无线通信高速透传输模组BLE5.3低功耗BT36」 点击链接直接打开 或者 淘宝搜索直接打开 清泛: 我其他 ble 硬件应该也能收发广播 清泛: 后面试试 MCU&amp;物联网: 你用其他ble硬件...
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Apache: client denied by server configuration

...to access a directory. It is turned on by DEFAULT in the httpd.conf that ships with Apache. You can see the enabling of the feature with the directive Require all denied This basically says to deny access to all users. To fix this problem, either remove the denied directive (or much better) add t...
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How to detect when WIFI Connection has been established in Android?

... really very useful. It works fine but in my case it come in onReceive multiple time in my case 4 times so my code execute multiple time. I do some modification and make as per my requirement and now it comes only 1 time Here is java class for Broadcast. public class WifiReceiver extends Broadcas...
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Is there a setting on Google Analytics to suppress use of cookies for users who have not yet given c

... they opt-in. window['ga-disable-UA-XXXXXX-Y'] = false; //...snip... //set a cookie to express that the user has opted-in to tracking, for future pageviews _gaq.push(['_trackPageview']); // now run the pageview that you 'missed' } Opt Out With this approach, you'd allow...