Raspberry Pi

• small single board computers
• latest version is Raspberry Pi 3 Model B
  • CPU:1.2 GHz 64-bit quad-core ARM Cortex-A53
  • Architecture:ARMv8-A (64/32-bit)
  • Memory:1 GB

Installation

• Install the NOOBS (New Out Of Box Software)
  • Follow the guide below to install Raspberry Pi https://www.raspberrypi.org/learning/software-guide/
  • Download the NOOBS from https://www.raspberrypi.org/downloads/noobs/
  • Format the SD class from https://www.raspberrypi.org/learning/software-guide/quickstart/
  • Unzip the NOOBS_v2_4_4.zip and copy the files inside the NOOBS_v2_4_4 folder to SD card
  • NOOBS is not an OS. It is an OS installer that allow you to install
    • Raspbian
    • Pidora
    • Windows 10

Start the box

• Connect the HDMI, Keyboard, Mouse, LAN and Power Adapter
• Install the Raspbian as OS
• Enable the ssh

Update the Raspbian

• sudo apt-get -y update
• sudo apt-get -y upgrade
• sudo apt-get -y install tightvncserver

Check the version

pi@raspberrypi:~ $ cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)"
NAME="Raspbian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

tightvncserver

• start the tightvncserver

  • tightvncserver

• Stop the tightvncserver

  • tightvncserver -kill :1

• Set the vnc server password

  • vncpasswd

• Connect form mac
  • command+k
  • vnc://192.168.31.168:5901

Node JS on Raspberry Pi

• nodejs is installed on raspbian

pi@raspberrypi:~ $ node -v
v6.12.0

Blynk an LED on Raspberry Pi

Node.js

• We don't support BLE of Raspberry Pi 3 >.<
• Step to install node.js on Raspberry Pi

  • sudo apt-get purge node nodejs node.js -y
    

  • sudo apt-get autoremove   
    

  • curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash 
    

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

  • sudo apt-get install build-essential nodejs -y
    

• Check the npm version

  • node --version
    

  • npm -v
    

  • sudo npm install blynk-library -g
    

  • sudo npm install onoff -g
    

• Run default Blynk client (replace YourAuthToken):

  • export PATH=$PATH:/opt/nodejs/bin/
    

  • unset NODE_PATH
    

  • blynk-client YourAuthToken
    

• Reference
  • https://www.youtube.com/watch?v=LJ3ic8C8CcA
  • http://help.blynk.cc/
  • http://help.blynk.cc/how-to-connect-different-hardware-with-blynk/raspberry-pi/how-to-install-nodejs-library-on-linux

C++

• Download the Blynk_Release_v0.4.10.zip from github
• unzip the file and found two folders libraries and tools
• create blynk0.4.10 folder under ~
• move two folders libraries and tools to blynk0.4.10
• To check that wiringPi is installed, you can use "gpio -v" to check

• cd blynk-library/linux
  

• make clean all target=raspberry
  

• sudo ./blynk --token=YourAuthToken
  

• It able to connect with Blynk Apps
• Edit the main.cpp to play with Blynk

Install Blynk library on RPi

• It is used to control arduino uno (as there is no BLE and ETH access) via RPi
• Download the latest release .zip file.
• Unzip the file
• Check the location of your_sketchbook_folder, by checking "File>Preferences"
  • /root/sketchbook/libraries
  • /home/pi/sketchbook

  • sudo cp -r libraries/ /root/sketchbook/
    

  • sudo cp -r tools/ /root/sketchbook/
    

  • Build Blynk

  • cd blynk-library/linux
    

  • make clean all target=raspberry
    

  • Run Blynk
  • sudo ./blynk --token=YourAuthToken
• Link
  • http://www.blynk.cc/getting-started/
  • https://github.com/blynkkk/blynk-library/releases/tag/v0.4.10

Link

• https://www.raspberrypi.org/
• https://askubuntu.com/questions/162391/how-do-i-fix-my-locale-issue