UbuntuNews.de – Der Ubuntu News-Ticker › picomol

#!/bin/bash # this simple Linux shell script uses the "jq" command line # JSON data processor pls. install "jq" first (sudo apt # install jq) then save the skript with an editor as i.e. # "btc" under a path for executables, (i.e. ~/.local/bin/) # and make it executable ("sudo chmod +x btc"). The script # uses market data from the kraken api; pls. feel free to # use any other api. The script displays the current price # of Bitcoin and Ether in USD and EUR. If you don't like # the colors, try playing around with the "tput setaf x" # (color of characters) and "tput setab x" (background # color); you might find the information frome here: # https://stackoverflow.com/questions/5947742/how-to-change-the-output-color-of-echo-in-linux # useful. Enjoy! JSN1=$(curl -s "https://api.kraken.com/0/public/Ticker?pair=XBTUSD") JSN2=$(curl -s "https://api.kraken.com/0/public/Ticker?pair=XBTEUR") JSN3=$(curl -s "https://api.kraken.com/0/public/Ticker?pair=ETHUSD") JSN4=$(curl -s "https://api.kraken.com/0/public/Ticker?pair=ETHEUR") QRAW1=$(echo $JSN1 | jq ".result.XXBTZUSD.c[0]") QRAW2=$(echo $JSN2 | jq ".result.XXBTZEUR.c[0]") QRAW3=$(echo $JSN3 | jq ".result.XETHZUSD.c[0]") QRAW4=$(echo $JSN4 | jq ".result.XETHZEUR.c[0]") RGX='\"\([0-9]\+\)\.[0-9]\+\"' Q1=$(echo $QRAW1 | sed "s/${RGX}$/\1/g") Q2=$(echo $QRAW2 | sed "s/${RGX}$/\1/g") Q3=$(echo $QRAW3 | sed "s/${RGX}$/\1/g") Q4=$(echo $QRAW4 | sed "s/${RGX}$/\1/g") RED=`tput setaf 1` GREEN=`tput setaf 2` WHITEBACK=`tput setab 7` CYANBACK=`tput setab 6` BOLD=`tput bold` RESET=`tput sgr0` echo "${WHITEBACK}${BOLD}${RED}Bitcoin: $""$Q1"" €""$Q2${RESET}"" ${BOLD}${CYANBACK}${GREEN}Ether: $""$Q3"" €""$Q4${RESET}" 

• implementation of BIP 146 as an HF (LOW_S, NULLFAIL)
• fix some UI inconsistencies introduced by the Coin Freeze feature
• migrate and separate QT settings for BUCash nodes
• only request blocks via HEADERS and not by INV (BIP 130)
• various improvements to Xthin code
• add a flag to return txns count rather than list them all for getblock RPC
• change Bitcoin Cash ticker from BCC to BCH

• Raspberry Pi (I used a spare Pi 2 that I just took from an old baby monitor)
• Micro SD Card (I just used a spare 8GB card)
• Wifi Adapter (if it's not a Pi 3)
• HDMI cable (I used this one from Monoprice)
• MonitoTV (I used this one from Newegg)
• Monitor Mount (I used this one from Monoprice)

• Download the latest version of raspberry pi from raspberrypi.org and flash the microSD card with your program of choice (I use win32diskimager).
• Once you boot up your Pi, go to raspi-config.
• Once in Raspi-config there are a few steps. You'll need to 1) expand the file system, 2) enable SSH, 3) auto boot to desktop and 4) change the internationalisation options. I left the account as pi for mine since this will only be a local device with no outside access. However, most places recommend you change the account/password from default for security reasons.
• OPTIONAL: I found for the monitor I used, I had to enable overscan in order for the image to fill the screen.
• STRONGLY ENCOURAGED: It's probably best to set a static IP address for the Pi. You have two options to do this. You can either set a dhcp reservation on the router or modify the /etc/network/interfaces file on the Pi itself. In ther interfaces file, you'll need to modify the line that says:
  

  iface eth0 inet dhcp 

• to something like the below (with the data filled out). A good set of instructions are here:
  

  iface eth0 inet static address x.x.x.x netmask x.x.x.x network x.x.x.x broadcast x.x.x.x gateway x.x.x.x 

• Reboot the device
  
• Once the device booted up, I began setting everything via putty.
  
• OPTIONAL: I personally removed wolfram alpha and libreoffice. I wasn't going to use either for this pi, and found that it would free up about 1GB. The commands for this is:
  

  sudo apt-get purge wolfram-engine sudo apt-get purge libreoffice* sudo apt-get clean sudo apt-get autoremove 

• Run the usual update process of:
  

  sudo apt-get upgrade && sudo-apt get update 

• I decided to use chromium to display the webpage, but it is up to you which browser you want to use (IceWeasel, Midori, etc...). To download chromium, enter the following commands:
  

  wget http://ports.ubuntu.com/pool/universe/c/chromium-browsechromium-browser-l10n_48.0.2564.82-0ubuntu0.15.04.1.1193_all.deb wget http://ports.ubuntu.com/pool/universe/c/chromium-browsechromium-browser_48.0.2564.82-0ubuntu0.15.04.1.1193_armhf.deb wget http://ports.ubuntu.com/pool/universe/c/chromium-browsechromium-codecs-ffmpeg-extra_48.0.2564.82-0ubuntu0.15.04.1.1193_armhf.deb sudo dpkg -i chromium-codecs-ffmpeg-extra_48.0.2564.82-0ubuntu0.15.04.1.1193_armhf.deb sudo dpkg -i chromium-browser-l10n_48.0.2564.82-0ubuntu0.15.04.1.1193_all.deb chromium-browser_48.0.2564.82-0ubuntu0.15.04.1.1193_armhf.deb 

• You will need a program called unclutter to remove the mouse cursor during the display
  

  sudo apt-get install unclutter 

• At this point, you will want to disable the screen saver. Head to /etc/xdg/lxsession/LXDE-pi/autostart and you'll want to comment out (add a #) to the line that says
  

  @xscreensaver -no-splash 

  and you'll want to add these lines to the bottom of the file
  

  @xset s off @xset -dpms @xset s noblank @sed -i 's/"exited_cleanly": false/"exited_cleanly": true/' ~/.config/chromium-browseDefault/Preferences 

• OPTIONAL: I decided to have my Pi turn on/off the hdmi on a regular schedule (I don't need the dashboard during the night hours). Follow this guide to create the files. He has the path to where the files are to be saved at the top of each file. Modify the /etc/cron.d/raspi-monitor-scheduler to your preferences. I have mine turn on at 6am, off at 8:30am, on at 5pm, and off at 11pm during the weekdays.
  
• Create a folder in your home pi directory for the html files for your dashboard.
  

  sudo mkdir /home/pi/html/ 

• Finally create a new desktop file to tell the Pi to automatically load Chromium upon boot:
  

  sudo nano ~/.config/autostart/autoChromium.desktop 

• with the following text
  

  [Desktop Entry] Type=Application Exec=/usbin/chromium-browser --noerrdialogs --disable-session-crashed-bubble --disable-infobars --kiosk file:///home/pi/html/Dashboard.html Hidden=false X-GNOME-Autostart-enabled=true Name[en_US]=AutoChromium Name=AutoChromium Comment=Start Chromium when GNOME starts 

• IMPORTANT: I pointed Chromium to load a file that I called Dashboard.html. It's your call on what you want to name the file, but make sure you point it to the right one.
  

• This is entirely your choice to what you want to display (and how). I included a calendar, news widget, stock ticker, to do list, traffic, and weather. There are a lot of ways to do this, and I'd even encourage borrowing from the magic mirror project. But, I'll provide links for my approach.
  
• I built it as a main page (Dashboard.html) with the page elements being pulled through via iframes. I found it easier to align and space things this way since I was combining so many different elements.
  
• I only added a few elements in the html heading to add a background image (vs. white) and to have the webpage "auto-refresh". Since I am only interacting via ssh, it was easier than writing a script to hit f5 or leaving the page completely static.
  

• My Folder structure looks like
  

1. Background.png
   
2. Dashboard.html
   
3. News.html
   
4. Map.html
   
5. Stocks.html
   
6. ToDo.html
   
7. Weather.html
   
8. Calendar.html
   

• Background.png - I used this as my background. I just searched for something that I liked that is 1920 x 1080.
• News - I used Feed Grabbr for my news feed. Their service is free if you have 1 widget with <3 RSS feeds. My minor gripes is that they only refresh every 9h for the free service (which, frankly, is totally fair) and its only one format unless you pay (again, totally fair).
• Map - I used Google Maps to show a local map with traffic. The most difficult process here is that you need to create an API key to pull the data. As long as you have 25k requests/day or less, the service is free.
• Stocks - I used Trading View for coming up with a stock widget. I used a single tab with a few stocks that I follow (+ the VIX, S&P 500, and the 10yr Treasury). It seems to have a fairly comprehensive reach of data (from FRED, to bitcoin, to futures/forex). I personally ignored the chart since I won't be interacting with the board.
• To Do - I used FeedWind to come up with a short RSS widget that pulls in my to do list from Remember the Milk. I decided on this one since it was free and fairly customizable.
• Weather - I decided to use Forecast.io for a weather widget.
• Calendar - I used this link for a google calendar embed. Personally, I took off everything but the time zone in the headings. I really don't like the "baby blue" and am looking at replacing this one next.
  
• To wrap it up, my html code looks like the below. I fiddled with the sizing, but I'm sure someone can come up with a more elegant solution.
  

         top section   bottom section 
      -  -   

• implementation of BIP 146 as an HF (LOW_S, NULLFAIL)
• fix some UI inconsistencies introduced by the Coin Freeze feature
• migrate and separate QT settings for BUCash nodes
• only request blocks via HEADERS and not by INV (BIP 130)
• various improvements to Xthin code
• add a flag to return txns count rather than list them all for getblock RPC
• change Bitcoin Cash ticker from BCC to BCH

• Binance
• Bitfinex
• Bithumb
• Bitstamp
• Bittrex
• Coinbase
• Coinone
• Gdax
• Gemini
• Hitbtc
• Kraken
• Kucoin
• Poloniex

• implementation of BIP 146 as an HF (LOW_S, NULLFAIL)
• fix some UI inconsistencies introduced by the Coin Freeze feature
• migrate and separate QT settings for BUCash nodes
• only request blocks via HEADERS and not by INV (BIP 130)
• various improvements to Xthin code
• add a flag to return txns count rather than list them all for getblock RPC
• change Bitcoin Cash ticker from BCC to BCH

1. We love automated trading, so we made ourselves a bot.
2. We love the bot, so we built a platform to sell & run it for multiple people
3. We suck at marketing, so we're selling it all to someone who doesn't.