My pet IoT project :)
What?I have a few pet coding projects in Github. I usually maintain them as private repositories. The reason I keep them private is because they are Proof of Concept type work (and are also skunk-work).
One such project I started a few months back was an IoT prototype. What I wanted to develop was an application that qualifies as an IoT use case and structure it in such a way that the architecture, design, development, deployment and continuous delivery is laid out as a pattern.
During the course of development, I found out about a few cloud based technologies such as Pubnub (https://www.pubnub.com/) and Google's Firebase (https://firebase.google.com/).
The text below is directly from the README of my project at https://github.com/tyrell/control-things-from-the-internet
I'm making this project public from today, and hope this helps someone else to get started!
Control 'Things' from the InternetThis is a Proof of Concept application I maintain to fine tune a develop+test+deployment work-flow for IoT use cases.
The breadboard brings together the following ...
- An Arduino Uno
- A Servo
- An LM35 temperature sensor
- An LED
- A Photoresistor
I have hosted this UI in Firebase at https://servo-controller.firebaseapp.com/
In May 2016, Google announced major upgrades to Firebase during their Google I/0 conference. Now I love it even more.
- Complete breadboard connections as illustrated.
- Plug Arduino to the host computer via USB.
- Install the Arduino IDE and load Standard Firmata.
- Install Node.js
- clone git repository to your local machine.
- npm install
- npm start
- Load index.html either directly in the web browser to test that everything communicates with each other. Once verified, host it on the Internet.
- Install Docker on your raspberry pi. I have documented my work flow at https://gist.github.com/tyrell/2963c6b121f79096ee0008f5a47cf347 .
docker run -dti --privileged tyrell/control-things-from-the-internet:rpi-latest
sudo crontab -e
- Add the following line to the file and save
@reboot /bin/bash /
/scripts/control-things-from-the-internet.sh 2> / /cron_errors.log
- Install Node-RED on your Raspberry Pi.
- Setup the circuit and attach your Arduino to the Pi.
- Go to http://[your-pi-ip-address]:1880 in a browser to view the Node-RED flow designer.
- Copy and paste the flow definition from node-red/flows_raspberrypi.json file and deploy to Node-RED
- Pubnub - https://www.pubnub.com
- Firebase - https://www.firebase.com
- Resin.io - https://resin.io/ They have operationalised deployments in a way I find really interesting.
- Node-RED - http://nodered.org/
- Johnny Five and Node-RED HowTo - https://github.com/rwaldron/johnny-five/wiki/Getting-started-with-Raspberry-Pi-node-red-and-IoT