Download and install Raspian\u00a0Stretch Lite onto RasPi SD card<\/p>\n
sudo raspi-config<\/pre>\n
Connect remotely using Putty:<\/p>\n
Connect via SSH to the Pi’s IP address<\/p>\n
Update and install all of the necessary software:<\/p>\n
sudo raspi-update\r\nsudo reboot<\/pre>\nafter the reboot, log in and\u00a0install Node-Red<\/p>\n
sudo apt-get install nodered\r\n<\/pre>\nOnce installed, we will need to start Node Red by running the following code.<\/p>\n
node-red-start<\/pre>\nNow you can go to the Pi’s IP address in any web browser but be sure to add port 1880 to the IP address like so:<\/p>\n
http:\/\/192.168.1.32:1880<\/em><\/p>\n
Now we want to make it so Node RED runs on startup.<\/p>\n
sudo systemctl enable nodered.service<\/code><\/pre>\ninstall MQTT support<\/p>\n
sudo wget http:\/\/repo.mosquitto.org\/debian\/mosquitto-repo.gpg.key\r\nsudo apt-key add mosquitto-repo.gpg.key\r\ncd \/etc\/apt\/sources.list.d\/\r\nsudo wget http:\/\/repo.mosquitto.org\/debian\/mosquitto-wheezy.list\r\nsudo apt-get update\r\nsudo apt-get -y install\u00a0mosquitto\u00a0mosquitto-clients python-mosquitto<\/pre>\nTest by starting the service<\/p>\n
sudo \/etc\/init.d\/mosquitto start<\/pre>\nopen a new Putty terminal<\/p>\n
In the first terminal enter the following:<\/p>\n
mosquitto_sub -d -t hello\/world<\/pre>\nIn the second Window, enter:<\/p>\n
mosquitto_pub -d -t hello\/world -m \"Hellow from Terminal 2!\"<\/pre>\nIf successful, the packet sent from terminal window 2 should appear in window.<\/p>\n
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