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Coding in Other (Spoken) Languages
...rd of that language, stuff could have been called var_123, var_562 or func_333 as well (and probably it would have been easier for me to remember the names or at least to have a chance of spelling them right without copying and pasting). Since this was a short, self-contained snippet, I used an onli...
【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛,有思想、有深度
文章源自:http://doc.iotxx.com/index.php?title=BLE技术揭秘
BLE技术揭秘
BLE是低功耗蓝牙的英文缩写(Bluetooth Low Energy),是蓝牙4.0版本起开始支持的新的、低功耗版本的蓝牙技术规范。蓝牙技术联盟(Bluetooth SIG)在2010年发布了跨...
How to clear Facebook Sharer cache?
... they will be counted for each version, right?
– André Laszlo
Feb 13 '18 at 23:59
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一分钟读懂低功耗蓝牙(BLE) MTU交换数据包 - 创客硬件开发 - 清泛IT社区,...
...耗蓝牙连接数据包”)
做个对比就可以知道BLE MTU 比较小(不过新的BLE 标准MTU 已经大幅提升,详见即将发表在VIEWTOOL BBS上的后续文章)。
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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...
创建并发送BLE蓝牙广播 - 创客硬件开发 - 清泛IT社区,为创新赋能!
在MIT App Inventor社区的一篇帖子中,用户尝试使用最新的BLE扩展来创建和发送蓝牙广播,但遇到了一些问题。Evan Patton指出,Android的BLE子系统需要使用16位UUID,并提供了一个测试版的BLE扩展,解决了广播发送失败的问题。
以下...
App Inventor 2 物联网入门的两个方向:BLE直连硬件 vs MQTT云端通信,你的...
... 2 来说,物联网有两条成熟的路径:一条走低功耗蓝牙(BLE),手机直连传感器或执行器,不依赖网络;另一条走 MQTT 协议,通过 WiFi 接入消息服务器,手机和设备之间隔着一朵"云"。两者各有适用场景,选错了确实事倍...
低功耗蓝牙(BLE) 和 经典蓝牙(SPP) 的区别 · App Inventor 2 中文网
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低功耗蓝牙(BLE) 和 经典蓝牙(SPP) 的区别
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低功耗蓝牙(BLE) vs 经典蓝牙(SPP)
区别项
低功耗蓝牙(BLE)
经典蓝牙(SPP 串行...
Does PostgreSQL support “accent insensitive” collations?
...critics known to Unicode, and expand ligatures correctly (Thomas
Munro, Léonard Benedetti)
Bold emphasis mine. Now we get:
SELECT unaccent('Œ Æ œ æ ß');
unaccent
----------
OE AE oe ae ss
Pattern matching
For LIKE or ILIKE with arbitrary patterns, combine this with the module pg_trgm ...
BLE(二)信道&数据包&协议栈格式 - 创客硬件开发 - 清泛IT社区,...
文章源自:https://www.gandalf.site/2018/11/ble_23.html
参考低功耗蓝牙(BLE)安全初探
0x1 信道BLE的物理通道即“频道,分别是‘f=2402+k*2 MHz, k=0, … ,39’,带宽为2MHz”的40个RF Channel。
其中,有3个信道是advertising channel(广播通道)...
