Node-RED on a Raspberry Pi

These exercises download and install Node-RED onto a Raspberry Pi.
This provides a no code web interface to quickly create IoT applications using the GrovePi sensors, actuators and other digital technology.

More information on Node-RED is available online.
Being able to use this software will greatly simplify rapid prototyping of your ideas to solve problems.

After completing this assignment you will be able to:

1. Obtain Node-RED
2. Install Node-RED on a Raspberry Pi
3. Run Node-RED
4. Understand the Node-RED interface

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This assignment reviews basic computer concepts that you will need in this course and throughout your career.

You are expected to have a working knowledge of SBC hardware and software.
If you do not understand how to use an item, perform a Google Search, refer to the WSU Technology Knowledge Base,  ask a teaching assistant, or ask the instructor.

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1. These steps are performed on the Raspberry Pi, either by using a mouse and keyboard attached directly to the Raspberry Pi, or establishing a VNC connect per IOTP03.
2. Make sure your Raspberry Pi is connected to the WSU Guest wireless network.
   To establish a VNC connection, your laptop must be attached to the WSU network via a wired connection.
   See IOTP02 for details.
   
3. If you have not run your Raspberry Pi in a while, make sure to first open and Terminal window and run these commands:
   sudo apt-get update
sudo apt-get upgrade
   Note there may be other on-screen suggestions for commands to run.
4. Open a browser to: https://www.raspberrypi-spy.co.uk/2014/10/how-to-use-wavemon-to-monitor-your-wifi-connection/
   and review how to install and use Wavemon.
5. To install Wavemon, open a Terminal window and type the following command, then press Enter:
   sudo apt-get install -y wavemon

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1. These steps are performed on your Raspberry Pi.
2. Open a Terminal window and start the Wavemon program by entering:
   wavemon
   
3. After WaveMon begins, and you are at the main screen, examine and run the available functions, F1, F2, F3, F7:
   

   WaveMon Functions
   

4. Run each function and examine the results.

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Take a screenshot with WaveMon running in F1-info mode to document your work.
Note: this can be done using the Snipping Tool if you are running VNC, or use the scrot command if you are connected to the Raspberry Pi with a keyboard and mouse.

1. On the Raspberry Pi, position the F1-Info window next to your name on the desktop.
2. Take a screenshot.
3. If on your laptop you may want to save the screenshot as "IOT01" in your ' ' folder.
   

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Submit to the appropriate D2L Assignment folder a screenshot that documents your work.