I am trying to follow this tutorial https://openhomeautomation.net/bluetooth-heart-rate-sensor-arduino
and I have uploaded the code to the arduino. However, I now have to " see how to use the application to display the data, based on Node.js. We won’t see all the details of this app, but basically once you download the file from the GitHub repository you just need to modify the Serial port corresponding to your Bluetooth module. This value can be found in your Arduino IDE under Tools>Port. Then, open the file called app.js, and modify the following line:
It’s now time to test the application. Go in the folder where you put all the application files, and type:
sudo npm install arest express jade
Then, start the application with:
Finally, go to your favorite web browser and type:
I checked under port but all it has is the arduino port, how do I modify it? Also, if anyone could re-iterate these instructions in a much simpler form it would be greatly appreciated as I am a very inexperienced programmer.