Develop and Deploy IoT Application

Demistified…

How the story begins...What about making a monitoring application which can transfer data over the cloud? I mean temperature, humidity, alarms...

Sounds interesting, but I always get confused when hear the word “cloud”... Walter, any suggestions?

Uhm...Basically you needs two things:

- REST Server- Lots of Beer

Should work after the classic POC curve

The POC Curve TheoryPOC = Prove Of Concept

Concept● Use a REST service on server side (dweet.io)● Producer of data is an embedded board connected to

the cloud● Application board connect various type of sensors using

different protocols● Consumer could get data from the REST server and

present it with the preferred solution (web browser, desktop app, mobile app, etc…)

Something like this...

Platform?● The Platform, in this case, is the electronic object that

will embed our application● IoT = Internet Of Things● In many cases “Small Things”...● Not much space… we have to make it as small as

possible

● Use a Microcontroller

What About TCP/IP Interface?● TCP/IP is a pretty much complicated protocol● It has been developed during ‘70 by a group of

engineers

● You don’t want to do it again...

● Use a specialized Module● Wiznet W5100

HW Setup

Wiznet

Microcontroller

LEDs

Sensors

Looking for an Environment● Lots of IDE for Microcontroller C code development

○ Not easy to use and understand○ C language is pretty complex

● What about a Graphic Environment? It will reduce code overhead and simplify application development :-)○ Yes, it is scalable if you use it in the right way…○ Yep, it could be debugged like a text based…○ Yeah, it can be simulated as well…

Make it simple...● We are going to use Flowcode ● Flowcode is a Graphic Integrated Development

Environment (or G-IDE)● It looks like a flowchart, but allow you to program

Microcontrollers

Make it veeery simple...

Pretty Cool, Ah?Messy C code...

...simple flowchart

Using a Component● Inside Flowcode a lot of complex problems could be

easily solved using a component● A component is a set of APIs that allow you to interface

a complex peripheral inside your flowchart● In Flowcode, CAN, USB, Ethernet are all components● Besides APIs, components require also an initial

configuration, in the form of, so called, “extra properties”● A component is added to a project simply

Dragging&Dropping it inside the project itself

Configure TCP/IP Component

GateWay Address

SubNet Mask

Our Node Address

Extra-Properties

Sw Architecture

Create TCP/IP connection

Send POST to dweet

MACRO

Our Things on Dweet

I think it could be presented a bit better...

Example of Data collection:Freeboard

Amazing!!!

What do you think?

ReferencesEmbedded Code:● www.francescoficili.com● www.vincenzogermano.com

FlowCode: ● http://www.matrixtsl.com/flowcode/

Freeboard Panel:● https://freeboard.io/board/sC5AvM

Questions?

Grazie :-)