stl subnail

Ref : https://github.com/MLAB-project/stl-thumbnailer

GoBike ios project

Ref : https://github.com/TerryCK/GoBike

video stream2 on rpi

Ref : https://github.com/Tomtomgo/raspberry_livestream


Ref : http://engineer2you.blogspot.tw/2016/10/rasbperry-pi-ffmpeg-install-and-stream.html

Ref : https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=133871&p=1011437

ffmpeg youtube rtmp

ffmpeg -thread_queue_size 512 -f v4l2 -i /dev/video0  -ar 44100 -ac 2 -acodec pcm_s16le -f s16le -ac 2 -i /dev/zero -acodec aac -ab 128k -strict experimental -aspect 16:9 -vcodec h264 -preset veryfast -crf 25 -pix_fmt yuv420p -g 60 -vb 820k -maxrate 820k -bufsize 820k -profile:v baseline -r 30 -f flv rtmp://a.rtmp.youtube.com/live2/"your api key"

如何解決FTP連線時出現無法取得目錄列表的問題

Ref : http://blog.bestdaylong.com/2012/08/ftp.html

install vesta on centos

Ref : http://idroot.net/tutorials/how-to-install-vesta-control-panel-on-centos-7/

check server port on centos

Ref : https://support.rackspace.com/how-to/checking-listening-ports-with-netstat/


sudo netstat -plnt

install mqtt on centos

Ref : https://www.digitalocean.com/community/tutorials/how-to-install-and-secure-the-mosquitto-mqtt-messaging-broker-on-centos-7


把   home-oojah-mqtt.repo copy到   /etc/yum.repos.d/

然後執行

sudo yum install mosquitto
 sudo yum install mosquitto-clients

CentOS

Download the repository config file for your CentOS version from below and copy it to /etc/yum.repos.d/ You’ll now be able to install and keep mosquitto up to date using the normal package management tools.

The available packages are: mosquitto, mosquitto-clients, libmosquitto1, libmosquitto-devel, libmosquittopp1, libmosquittopp-devel, python-mosquitto.

• CentOS 7
• CentOS 6

sudo yum -y install epel-release

 sudo yum install mosquitto
 sudo yum install mosquitto-clients




mosquitto_pub -h 192.168.0.103 -t test -m "forward"

mqtt on rpi

Ref : https://learn.adafruit.com/diy-esp8266-home-security-with-lua-and-mqtt/configuring-mqtt-on-the-raspberry-pi

Ref : http://www.instructables.com/id/Installing-MQTT-BrokerMosquitto-on-Raspberry-Pi/


用 stretch 的 iso

This is what I did as per your instructions:
To use the new repository you should first import the repository package signing key:

wget http://repo.mosquitto.org/debian/mosquitto-repo.gpg.key
sudo apt-key add mosquitto-repo.gpg.key
Then make the repository available to apt:

cd /etc/apt/sources.list.d/
Then one of the following, depending on which version of debian you are using:

sudo wget http://repo.mosquitto.org/debian/mosquitto-stretch.list


Then update apt information:

sudo apt-get update


 sudo apt-get install python-pip

sudo pip install paho-mqtt

1. sudo apt-get install mosquitto mosquitto-clients python-mosquitto

sudo systemctl restart mosquitto


--------------------------------------------------------------


import os
import string
import paho.mqtt.client as mqtt
import time


localBroker = "192.168.1.120"           # Local MQTT broker
localPort = 1883                        # Local MQTT port
localUser = "mosquitto"                 # Local MQTT user
localPass = "mosquitto"                 # Local MQTT password
localTopic = "test"             # Local MQTT topic to monitor
localTimeOut = 120                      # Local MQTT session timeout


if "__main__" == __name__:

   # The callback for when the client receives a CONNACK response from the server.
   def on_connect(client, userdata, flags, rc):
                print("Connected with result code "+str(rc))

                # Subscribing in on_connect() means that if we lose the connection and
                # reconnect then subscriptions will be renewed.
                client.subscribe(localTopic)

   # The callback for when a PUBLISH message is received from the server.
   def on_message(client, userdata, msg):
                #(sensorID, sensorVoltage) = string.split(msg.payload)
                 print(msg.payload)

   client = mqtt.Client()
   client.on_connect = on_connect
   client.on_message = on_message
   client.connect(localBroker, localPort, localTimeOut)

   client.loop_forever()
   quit()

----------------------------------------------------------------------------------------------------------

mosquitto_pub -h 192.168.1.120 -t test -m "hello world"

install centos

Ref : https://blog.gtwang.org/linux/centos-7-installation-tutorial/

pppoe on centos

Ref : http://shaocian.blogspot.tw/2012/07/centos-pppoe-rp-pppoe.html

react native introduction

Ref : https://www.appcoda.com.tw/react-native-introduction/

資料學習

Ref : https://www.gitbook.com/book/mcknote/brohrer/details

git 指令大全

基礎設定

查詢版本
git version
 
查詢設定列表
git config --list
 
輸入姓名
git config --global user.name "你的名字"
 
輸入email
git config --global user.email "你的email"

新增本地/遠端數據庫

在本地資料夾新增數據庫
git init
 
複製遠端數據庫
git clone 遠端數據庫網址

增加/刪除檔案

增加檔案進入索引
git add 檔案名稱
 
增加全部檔案進入索引
git add .
 
查詢狀態
git status
 
顯示歷史紀錄
git log
 
將索引提交到數據庫
git commit -m '更新訊息'

還原指令

還原工作目錄與索引，會跟最後一次 commit 保持一樣
git reset --hard 
 
全部檔案取消索引
git reset HEAD 
 
單一檔案取消索引
git reset HEAD 檔案名稱 
 
恢復單一檔案到最新 commit 狀態
git checkout 檔案名稱 
 
刪除最近一次 commit 
git reset --hard "HEAD^" 
 
上面語法如果刪除錯了可以再用此語法還原
git reset --hard ORIG_HEAD 
 
刪除最近一次 commit，但保留異動內容
git reset --soft "HEAD^" 
 
commit 後發現有幾個檔案忘了加入進去，想要補內容進去時
git commit --amend 

分支

顯示所有本地分支
git branch
 
新增分支
git bracnch 分支名稱
 
切換分支
git checkout 分支名稱
 
合併指定分支到目前的分支
git merge 分支名稱
 
刪除分支
git branch -d 分支名稱

遠端數據庫操作

複製遠端數據庫
git clone 遠端數據庫網址
 
查詢遠端數據庫
git remote
 
將本地分支推送到遠端分支
git push 遠端數據庫名稱 遠端分支名稱
 
將遠端分支拉下來與本地分支進行合併
git pull

標籤

查詢標籤
git tag
 
查詢詳細標籤
git tag n
 
刪除標籤
git tag -d 標籤名稱
 
新增輕量標籤
git tag 標籤名稱
 
新增標示標籤
git tag -am "備註內容" 標籤名稱

暫存

暫時儲存當前目錄
git stash
 
瀏覽 stash 列表
git stash list 
 
還原暫存
git stash pop
 
清除最新暫存
git stash drop
 
清除全部暫存
git stash clear