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BLE（五）移动端工具 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...Bluedroid，但仍可使用BlueZ调试工具（需自行编译，或网上下载），且hcidump输出的数据与开发者模式里的蓝牙HCI日志基本一样，源码如下：
https://android.googlesource.com/platform/external/bluetooth/bluez/+/android-4.1.2_r1
hcidump抓取 log :
打开蓝...
App Inventor 2 动态创建组件功能 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...需要通过拓展实现：
拓展 com.yusufcihan.DynamicComponents.aix 下载地址：
https://www.fun123.cn/reference/ ... mic_components.html
当然也可以通过模板直接创建一个demo程序，基础代码已具备，步骤如下：
项目 -> 导入模板：
选择相应的...
App Inventor 2 中文网 · 升级日志
...新建中文项目名。 全新 解决中文名项目的上传下载问题。 项目指南 关于我们 中文文档 © 2023 - document.write(new Date().getFullYear()); 跟着学（上海）教育科技有限公司 沪ICP备2020034476号-2 沪公网安备3101170200...
MQTT相关知识研究笔记 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...tps://blog.csdn.net/xiaolong11 ... e/details/134280836
Mosquitto 安装包下载：https://mosquitto.org/download/
2、与Node-RED有啥区别？Node-RED 是一种编程工具，用于以新颖有趣的方式将硬件设备、API 和在线服务连接在一起。
Node-RED 是一个流程化的...
TaifunFlashlight 手电筒/闪光灯拓展 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...灯
过程
打开闪光灯
关闭闪光灯
示例程序
.aix 下载：
为什么条码扫描器开始工作时，通过taifunflashlight打开的手电筒就自动关闭了，能否在条码扫描器工作的同时手电筒也能同时工作？这样在黑暗的地方扫码时...
How to check if a float value is a whole number
...not sure how you loaded your test, but this works fine on my machine using Python3.7.
– Zchpyvr
Nov 5 '19 at 14:39
add a comment
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How do you send a HEAD HTTP request in Python 2?
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For completeness to have a Python3 answer equivalent to the accepted answer using httplib.
It is basically the same code just that the library isn't called httplib anymore but http.client
from http.client import HTTPConnection
conn = HTTPConnection(...
List of tables, db schema, dump etc using the Python sqlite3 API
...g."
(EDIT: I have been getting periodic vote-ups on this, so here is the python3 version for people who are finding this answer)
import sqlite3
db_filename = 'database.sqlite'
newline_indent = '\n '
db=sqlite3.connect(db_filename)
db.text_factory = str
cur = db.cursor()
result = cur.execute(...
How do I read text from the (windows) clipboard from python?
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It seems to be the most simple solution for WSL with python3.6
– enoted
Sep 9 at 10:55
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Making a request to a RESTful API using python
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Under python3, the following was spit out 'JSON must be str not bytes'. This is fixed by decoding the output, i.e. json.loads(myResponse.content.decode('utf-8')). Also you should wrap key and jData key with str() so when the RESTf...