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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！
...使用调用.WriteBytes
After a lot of hours I found the problem in my app.
How I proceeded:
1- At ESP32 code I put this line: BLEDevice::setMTU(192);
2- At app I put the call Request MTU on the .Connected block asking for the same 192 bytes;
In my case, when I have to send a payload < 23...
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！
...来源中文文档：https://www.fun123.cn/reference/iot/bluetoothle.html
App Inventor 2 发表于 2024-11-07 17:28
RequestMTU – 为 BluetoothLE 连接请求新的最大传输单元 (MTU)。此功能仅在两个设备都支持蓝牙 4.2 或更高 ...
谢谢，但是我设置了MTU为1...
- AI 助手 - 清泛IT社区，为创新赋能！
...了 set TextBox.Text to (someNumber + something) 等操作。
路径B：App中用了 if not (is text empty? TextBox1.Text) 然后直接拿 TextBox1.Text 去设置其他组件的属性（比如传入数字函数或设置到数值相关的属性）。此时 Kawa 内部把 text 值先隐式转成 nu...
android get real path by Uri.getPath()
...s with path of images i try create a custom gallery as facebook and other apps. This is because you can use just local files ( real files, not virtual or temporary) , i solve all problems with this library.
https://github.com/nohana/Laevatein (this library is to take photo from camera or choose f...
What is an AngularJS directive?
...umentation and several tutorials, and I have been quite surprised at how unapproachable the documentation is.
5 Answers
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Windows 7, 64 bit, DLL problems
... on my Windows 7 64-bit development box that also has all those Microsoft applications (Visual Studio 2008 + 2010, TFS, SDK, Microsoft Office)...
And it's still running just fine.
...
Reverse Range in Swift
...onstruct which can be used to iterate and increment by arbitrary integers. Apple also stated that floating point support is coming.
Sourced from his answer:
for x in stride(from: 0, through: -8, by: -2) {
println(x) // 0, -2, -4, -6, -8
}
for x in stride(from: 6, to: -2, by: -4) {
println...
Run single test from a JUnit class using command-line
I am trying to find an approach that will allow me to run a single test from a JUnit class using only command-line and java.
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How to store date/time and timestamps in UTC time zone with JPA and Hibernate
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hibernate.jdbc.time_zone appears to be ignored or has no effect when used with PostgreSQL
– Alex R
Apr 29 '19 at 0:26
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Using the “animated circle” in an ImageView while loading stuff
I am currently using in my application a listview that need maybe one second to be displayed.
6 Answers
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