Submitted by chrowe on Thu, 03/15/2018 - 2:08pm Tool Concept Stage: DIY Primary problem statement: I am a farmer and I want a tool to remotely know what is happening in the environment because I can't be everywhere all the time. Read more about this problem statement License: This work is licensed under a Creative Commons Attribution 4.0 International License. Description: A simple way to collect data from sensors, like temperature and humidity and store it in FarmOS.Add new comment Documentation Video: Documentation Wiki: Parts Raspberry Pi GrovePi Grove Temperature&Humidity sensor SD card (8GB or larger) MicroUSB power supply (2 amp or more is best) Ethernet cable connected to router or your computer (just for initial setup) Steps Download the Raspian for Robots image. It should start downloading the latest version automatically. Currently 2017.10.05-Raspbian_For_Robots_by_Dexter_Industries.zip Burn to an SD card with Etcher Connect GrovePi to Raspberry Pi and plug in a sensor Put the SD card you just burned into the RPi and plug in the power Connect to wifi. There are many ways to do this. I will outline 3... The default R4R way to do this is to temporarily plugging the RPi in via Ethernet and then navigate to http://dex.local from your computer. (Note: if you have an Ethernet port on your computer you should be able to connect the RPi directly to that but if that doesn't work then try connecting to your router) This gives you an options to log in using VNC. This opens the RPi desktop in your browser. Then open the "Wifi Setup" utility on the desktop. You can also just use a keyboard, mouse and monitor before you boot the RPi and use the same Wifi Setup utility on the desktop as before. Or by editing files on the sd card https://gitlab.com/fiot/raspbian-headless-networking-config (you would do this before step 4) Install latest Node-RED Open a terminal (username: pi password: robots1234) and enter this command from https://nodered.org/docs/hardware/raspberrypi bash <(curl -sL https://raw.githubusercontent.com/node-red/raspbian-deb-package/master/r...) Answer yes to both questions Then to make sure Node-RED auto starts run this command sudo systemctl enable nodered.service Test that is is all working Unplug all your wires (including the power) Plug the power back in and try connecting to http://dex.local:1880 again. Your Pi should now be connecting to wifi and booting Node-RED automatically when it turns on. Install and configure GrovePi sensor nodes Go to the menu > Manage Pallet > Install and search for "node-red-contrib-grovepi" Click install (twice) and wait for it to finish Add a "Grove digital sensor" node and edit to select the connected GrovePi board and sensor. Add a "debug" node to the flow, connect to the sensor and deploy Open the debug tab and confirm you are seeing readings coming through Create a new sensor asset in FarmOS Create a new sensor asset in FarmOS Select "Listener" under "Sensor configuration > Sensor type" Open "Developer Information" and copy the "URL" Click "Save" (The senor asset does not work until it is saved for the first time) Send sensor readings to FarmOS Drag an "http request" function node onto the flow (not the "http response" output node does not work in this case) and connect the "grove digital" node to it. Double click to edit, select POST for the method and paste in the FarmOS senor URL. You will probably want to change the "Interval" for the sensor. By default it reads every second. Once every 15 or 30 seconds might be ok for short term testing while you develop but 5 minutes is probably fine in most cases. Deploy again and visit FarmOS to see the data roll in! Additional optional setup Remote access If you are installing the raspberry pi is not connected to the same wifi network you are normally connected to it can be helpful to be able to access it remotely for managing updates, changing settings, fixing problems, etc. Since Node-RED is a graphical program, I have found TeamViewer to be the simplest secure way to get remote desktop access to the Pi. It is not open source, but it is free for noncommercial use. If you just want to log in via ssh, then Pagekite is a good solution but it costs money unless you host it yourself. TeamViewer Log in to the desktop using a keyboard/mouse/monitor directly connected to the Pi. Not sure why this is the only way it works to install, but after it is installed it will run headless. Download https://download.teamviewer.com/download/linux/teamviewer-host_armhf.deb Open the downloaded .deb file and it should ask if you want to install it. This video is a bit old but it walks you through the basic process of getting TeamViewer installed and connected to the Pi from your computer https://www.youtube.com/watch?v=vr3Gf8vnKAg Pagekite Setup an account on https://pagekite.net/ Follow https://pagekite.net/wiki/Howto/GNULinux/DebianPackage/ to install Pagekite Follow https://pagekite.net/wiki/Howto/GNULinux/ConfigureYourSystem/#sshbe to configure for ssh Configure your ssh client (openssh for most people) https://pagekite.net/wiki/Howto/SshOverPageKite/#openssh The first 3 steps are contained in this Ansible script if that is helpful for anyone. Add new comment I like this tool up3 users have voted. I built (or modified) this tool up1 user has voted.
