Hi,
I have been following the forum for a few months but only recently, after reading a lot, have I started writing.
In March I have to replace a heating + DHW system with 2 heat generators and a puffer. Requires 6 H2O temperature inputs, 2 flow inputs, 4 digital outputs, all wired. The control system must be RELIABLE, maintainable over time and also manageable remotely (it is already possible today via GSM).all the loval system will be wired.
In the last few days I wrote the program on Arduino to generate 4 operating states, acquire sensors, control outputs.
However, I am still missing these activities/answers and not been able to find clear unique answers on the forum:
-understand how to integrate an HMI that at least monitor temperatures and manage states locally
-whether/how to create a web page to monitor the system locally and remotely (I would also like to be able to create parameter graphs).
-if I use Arduino cloud for remote control, does the system remain operational and controllable locally from the HMI even if there is no internet network?
-it is possible to issue commands both from the HMI and from the cloud (I expect so, but I have read conflicting information on the forum)
summing up
May you answer and/or write mi a reference were to find each andwer?
The answer is that it depends on the code you write. When you create an Arduino CloudThing, a sketch program is generated, but it only contains the basic code required for the Device to communicate with the Arduino Cloud service. You will then write the code that implements whatever behaviors you want from the Thing.
It is possible to write a program that would cause the system to become non-functional when there is no Internet connection, but it is also possible to write a program that allows it to remain functional even without an Internet connection.
My recommendation is to just jump in and do some experimentation with using the Arduino Cloud IoT features. This will give you a better understanding of how you might use it in your project. You can get started with the "Free" plan so you can do these experiments without spending money.
A great way to get a simple Arduino Cloud Thing up and running very quickly with a minimum of difficulty is to use the "Cloud Blink" template:
(If the above link doesn't work, make sure you are signed in to your arduino.cc account)
This will create a dashboard that allows you to control the LED on the Arduino board. You can study the code of the Thing sketch that was generated by the "Cloud Blink" template to understand how it works.
Yes. Again, you have control over how the device behaves.