A proof of concept to play out with Arduino, IoT, and Azure. The aim of this project is to turn on a neon at dusk and turn it off after 4 hours. Besides that, I have included a temperature and humidity sensor to gather some weather info. All the data collected by the sensors is sent to Azure to allow us to check it at any moment.
- The board sends data to the IoT hub on Azure.
- The stream analytics job picks these values and inserts them into a PowerBI datasheet
- A dashboard configured on PowerBi gives us the information about the weather and the relay status.
- NodeMCU board
- Breadboard
- DHT11 sensor
- Light sensor
- Relay
- Breadboard power supply
- A 10KΩ resistor
- Azure and PowerBI account
I am using Visual Studio Code with the PlatformIO extension to write, compile and deploy the code to the board. I am not an expert on this stuff and I am sure you are able to find a tutorial on the internet much butter from what I can explain here.
Besides, if you are using the same board I am using you will need to install the drivers for your OS.
You can find the code in the main file inside the source folder on the repo. The most part of the code was copied from the libraries I am using. The relevant part regarding turning on/off the neon is inside the loop method.
I am not comfortable with this code but it works, I would like to have more time to change some things, maybe to separate part of the code in libraries or find a better way to measure the passing of the time but so far so good.
Again, you can find a ton of information on the internet, this step is only about configuration I haven’t written a line of code to built the dashboard or to process the messages.
I hope the information offered here is useful somehow for you but if you have any question don’t hesitate and let me know.