大约有 3,200 项符合查询结果(耗时:0.0181秒) [XML]

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低功耗蓝牙(BLE) 和 经典蓝牙(SPP) 的区别 - App Inventor 2 中文网 - 清泛...

BLE 和 SPP 怎么选?看应用场景:BLE适用于低功耗、轻量级的应用,例如穿戴设备、传感器网络等。而SPP适用于需要大容量数据传输的应用,例如音频设备、文件传输等。看功耗需求:如果你的应用对功耗有严格要求,需要长...
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BLE(三)APP开发步骤 - 创客硬件开发 - 清泛IT社区,为创新赋能!

文章源自:https://www.gandalf.site/2018/11/bleapp.html Android系统自4.3版本开始,引入了对BLE的支持,详见Bluetooth Low Energy。通过浏览当中的信息,我们可以得知在app开发环节,需要做到如下几件事情: 1. BLE相关权限声明 2. 操...
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BLE UUID是对的但连接闪退:java.lang.IllegalArgumentException: UUID str...

...错日志 java.lang.ExceptionInInitializerError at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.subscribe(BluetoothLEint.java:357) at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.run(BluetoothLEint.java:325) at android.os.Handler.handleCallback(Handler.java:958) at and...
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Setting the correct encoding when piping stdout in Python

...at you receive, and encode what you send. # -*- coding: utf-8 -*- print u"åäö".encode('utf-8') Another didactic example is a Python program to convert between ISO-8859-1 and UTF-8, making everything uppercase in between. import sys for line in sys.stdin: # Decode what you receive: lin...
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Mark current Line, and navigate through marked lines

...rks and walk quickly from one to another. – André Alçada Padez Apr 19 '12 at 18:17 if you tell me this is impossible...
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Why both no-cache and no-store should be used in HTTP response?

...he storage of the response in non-volatile media? – Lèse majesté Feb 27 '11 at 4:38 4 @Lèsemaj...
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蓝牙BLE硬件接入及IO控制 · App Inventor 2 源码商店

... 源码列表 / 蓝牙BLE硬件接入及IO控制      蓝...
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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!

...可以的话我就先买个离线版的,在线的太慢了 清泛: ble 广播用法不常见,也不太安全,目前就之前一个用户反馈要这个功能,应该是成功过的。这块我还没有实地测试,后续我会用硬件测试一下的 MCU&物联网: 我的有效...
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select * vs select column

...using string keys or property names if using ORM. – Lèse majesté Jul 5 '10 at 15:04 11 saw this...
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Arduino101(Genuino 101)&App Inventor – RGB LED控制 - 创客硬件开...

...88%b6/ 本文將介紹如何取得觸碰點的 RGB 參數之後透過 BLE 送給 Arduino 101 來點亮 RGB LED。 App InventorDesigner使用 Canvas 來取得觸碰點座標。兩個連線斷線用的按鈕:Btn_Connect /  Btn_DisConnect三個用來呈現RGB值的 Slider (無法拖...