[Python] Chinese NLP資料

不知道有沒有分類錯誤？ 反正就是一個整理

https://github.com/crownpku/Awesome-Chinese-NLP

[Ubuntu] EDIMAX EW-7811UTC

不能在 Ubuntu 隨插即用，還需要編譯一下 QQ

sudo apt-get update
sudo apt-get install linux-headers-generic build-essential git
git clone https://github.com/gnab/rtl8812au.git
cd ~/rtl8812au
make
sudo make install
sudo modprobe 8812au

參考:https://ubuntuforums.org/showthread.php?t=2228244

[Ubuntu] 影音相關

淡江張老師推薦，最近有空來試一下...

錄製: OBS (https://obsproject.com/)
OBS 功能齊全，但硬體要求高些，家裡電腦顯卡等級不夠，我改用 Vokoscreen (http://www.kohaupt-online.de/hp/)

剪輯影音: OpenShot (http://www.openshot.org/)
剪輯音訊: Audacity (http://www.audacityteam.org/)

[RPi] Camera2.1 Reverse

總會有人逆向工程挖出一些東西
https://github.com/DrYerzinia/RaspberryPiCamerav21

[AI] Dialogflow

喔，hackmd 實在是太不穩了，常常會連不上 QQ，只好在這邊做紀錄


Day16[Line ChatBot]Dialogflow介紹 ==> 中文可是長的不一樣
https://ithelp.ithome.com.tw/articles/10195879

dialogflow教學 ==> 最新可是長的不一樣
https://www.youtube.com/watch?v=1yPLqDaN4A4

谈 Bot Framework 中的上下文（Contexts）设计 ==> 寫得很完整，可是還沒時間看 QQ
https://www.jianshu.com/p/d6c324e8ccae

聊天機器人教學：使用Dialogflow (API.AI)開發 iOS Chatbot App ==> 英文幫助不大
https://www.appcoda.com.tw/chatbot-dialogflow-ios/

• Invocation: It is similar to saying hello to a friend
• Intents: Intents include elements and logic to parse user’s information. This maps what the user says with response. Intents have several components: contexts, user says, events, action, and response.
• User says: Different variations of how the same question can be asked by a user. The more variation is added, the better agent can understand
• Entities: These are the knowledge repository that the agent would use to answer the user’s question. There are a variety of entities: system entities to include information about time etc, weather/location entities etc.
• Fulfillment Request: Dialogflow sends the request to fetch data needed. (sent to webhook) Webhook determines how it would like to respond and send back to dialog.
• Response: The backend system including webhook, entities, intents, user says, etc would produce a set of response
• Context: Contexts are used to store parameter values for different types of intent. Contexts can be used to repair broken conversation or to branch conversations.

reference: https://chatbotslife.com/getting-started-with-dialogflow-and-building-my-first-bot-newbies-guide-d025d4eed3b2

[RPi] New Pi3B+ Wireless issues

剛拿到 Pi 3B+ 想要設定 WiFi，發現沒有 wlan0 界面! 而且啟動內建的 WiFi 指令變了(Stretch)

sudo rfkill block 0  => 停用
sudo rfkill unblock 0   => 啟用

參考: * https://www.raspberrypi.org/forums/viewtopic.php?t=208164 * https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=207882&p=1285278#p1285278

[Ubuntu] 電腦一直當機

最近一直當機，之前用 10.10 還好，換了 16.04 常常 SWAP 搞到當機。剛剛出來這個訊息，不知道是不是有關？ https://bugs.launchpad.net/ubuntu/+source/tp-smapi/+bug/1744891

[RPi] RS485

這篇應該是可以用 QQ https://techsparx.com/energy-system/modbus/linux-modbus-usb-rs485.html

[Google] google-assistant

INFO:root:Connecting to embeddedassistant.googleapis.com
WARNING:root:Device config not found: [Errno 2] No such file or directory: '/home/pi/.config/googlesamples-assistant/device_config.json'
INFO:root:Registering device
ERROR:root:Failed to register device: {
  "error": {
    "code": 403,
    "message": "Could not create the device instance. Account doesn't have permission to perform this operation for project myAIY. See https://developers.google.com/assistant/sdk/guides/library/python/embed/register-device",
    "status": "PERMISSION_DENIED"
  }
}

[RF] LoRa一些計算

https://home.zhaw.ch/~rumc/wcom2/unterlagen/wcom2chap3CSS.pdf

[Voice] Jasper

一些語音辨識相關技術
https://www.cnblogs.com/hzl6255/p/8215551.html

[RF] hackrf 相關問題

昨天要 demo 的時候突然又不會動，只好把之前查的文章紀錄一下吧

https://github.com/rpp0/gr-lora/issues/42
https://wiki.gnuradio.org/index.php/Guided_Tutorial_GNU_Radio_in_Python
https://github.com/rpp0/gr-lora
https://github.com/rpp0/gr-lora/wiki/Capturing-LoRa-signals-using-an-RTL-SDR-device
https://www.tiny-dev.com/decoding-lora-with-hackrf-gnuradio/
https://www.thethingsnetwork.org/forum/t/how-to-build-your-first-ttn-node-arduino-rn2483/1574

https://www.youtube.com/watch?v=UAHQRHQD75U
https://www.youtube.com/watch?v=Y7PAkBiNYqM

CSS
https://home.zhaw.ch/~rumc/wcom2/unterlagen/wcom2chap3CSS.pdf



名詞解釋
https://blog.stackprogramer.xyz/en/bb-gain-vs-if-gain-vs-rf-gain/
https://revspace.nl/DecodingLora
https://docs.exploratory.engineering/lora/dr_sf/


AES 加解密
https://stackoverflow.com/questions/12524994/encrypt-decrypt-using-pycrypto-aes-256

LoRaWAN
https://ubidots.com/blog/explaining-lorawan/

TTN 問題
https://www.thethingsnetwork.org/forum/t/limitations-data-rate-packet-size-30-seconds-uplink-and-10-messages-downlink-per-day-fair-access-policy/1300


天線
http://www.cypress.com/file/136236/download

[RF] 簡單使用gqrx

http://gqrx.dk/doc/practical-tricks-and-tips

[RF] 參考文章

這篇講了蠻多基本的東西
https://www.survival.org.au/radio.php

[RF] LoRa頻段使用

理論上，LoRa 在不同的 SF 和 BW 就可以使用同一個頻段

但因為數學計算上，不是所有組合都是正交(orthogonal)的，因此以下幾個組合會收到資訊(但內容不正確)

SF: 07 & BW: 125kHz
SF: 09 & BW: 250kHz
SF: 11 & BW: 500kHz

http://www.sghoslya.com/p/lora_6.html


要錯開的組合參考

[RF] 教學網站

圖文都不錯
https://www.taitradioacademy.com/topic/how-does-modulation-work-1-1/

[Maker] 電子badge

電子 badge
https://www.electromaker.io/blog/article/make-an-animated-conference-badge-with-inkyphat