CSE222 Overview

Possible Approaches

Focus on single aspect of IoT

(e.g., networking)

Survey of many topics

(breadth, but not depth)

Depth

(but not breadth)

Choice

Focus on development Applications of IoT

(depth approach) from a C.S. perspective

Why:

1. Exposure to many contemporary topics

2. Accessible & Exciting opportunities for you

Goals

Form a basic understanding of most major aspects of basic IoT systems

Goals

Challenges

Challenges

There are few existing IoT texts/course syllabi

Hardware (can't do traditional submission)

Topics cover many areas in C.S. & Comp.E.

All "Platforms" have serious flaws/limitations

Particle is "commercial ready"

APIs and documentation are acceptable

Connectivity compromises exist with most platforms

Content

Content

There are significant outside resources for technical content: Khan Academy, AdaFruit, MDN, etc.

Try to select a set of topics that allows construction of "real-world" IoT application by a person/small team.

Try to minimize languages/tools

Try to focus on real-world principles

Studios

Structured exploration of topic

Introduction of topic prior to assignment

Post studio summaries were intended to correct errors and provide review

Show some shortcuts / techniques

Assignments

In-depth exploration of topic.

Attempt to mimic development approaches used in real products

Attempt to introduce some software engineering tools and concepts

Project

Independent project

Opportunity to demonstrate significant mastery of concepts

Quizzes

Quizzes

Only required independent assessment

Tool to probe aspects of:

Breadth of knowledge

Depth of understanding

Domain specific critical thinking

Ability to generalize

Paced to:

Diffuse study

Coerce review soon after content

Philosophy

Philosophy

Traditional lectures are not effective for many students

Active learning / learning by doing

Social learning has been shown to have

some benefits

Some degree of self-learning from diverse resources is essential beyond academia.

Favor "broad exposure" to mastery

(for this course)

Include lightweight intro to many concepts needed for careers and larger projects

Studio: Defining IoT

Studio:

IoT Games

Studio: HTML+CSS

Studio: HTML

Development of a UI for an RGB LED

Software Engineering concepts:

User Stories are a way to identify/document features and needs

Usage scenarios can capture fine details of specific interaction

Paper Prototypes can help test user interaction early in development

Tools

Browser developer tools

Assignment:

UI For Garage

Assignment:

HTML

(UI For Garage)

Goal:

Foundation for an ongoing "real" project

Introduce concepts for project

Prototype features for later:

Login/Accounts

Basic Controls

Support for "advanced" features

Important contemporary concepts:

Responsive Web Design concepts

Tools:

HTML Validator

Studio: JavaScript

Goals:

Use most prominent web language.

Emphasize "event driven programming"

(Other examples: event listeners, cloud function call backs, timers, etc.)

Emphasize Object Oriented Design and callbacks

Software Engineering Concept:

UI Design Approaches: Model-View-Controller

& UI lifecycle

Stubs for partial implementations

Proxys to stand in for missing components

Tools:

JavaScript Console for interaction/inspection

Assignment:

Garage Behavior

Assignment: Garage Behavior

Goal:

Practice JavaScript

Implement navigation

Introduce "Single Page Applications"

Introduce JavaScript Objects

Studio:

Embedded 1 (Photon Basics)

Studio: Embedded 1

(Photon Basics)

Goal

Understand the basics of configuring a device for Wi-Fi

Understand the Particle's model of cloud-based deployment.

Resistor review (current, voltage, engineering constraints)

Understand analogWrite() & RGB LEDs

Studio:

Embedded 2 (Buttons, Time, & Timers)

Studio:

Embedded 2 (Buttons, Time, & Timers)

Goal:

Review input issues / pullups

Safe Mode

Buttons

Practice debugging (Serial.println)

Time object / "clock time"

Understanding software timers

Build crossfade for RGB light

Studio:

Hardware Cont'd

Goal

Explore common mistakes (floating input)

Debouncing (again)

Assignment:

Photon Phun

Goals

Emphasize the importance of API for separating concerns

Challenging, but real-world logic

Emphasize the importance of timing and states in many real applications

Studio: Cloud 1

Particle Functions & Variables

Studio:

Cloud 1

(Functions & Polling)

Goal

Complete a basic RGB LED lamp

Introduce use of Particle console for testing.

One-to-One communication & Polling: Particle.function() and Particle.variable()

Studio: Cloud 2

Pub-Sub

Studio:

Cloud 2

(Pub-Sub & JavaScript API)

Goals

Introduce pub-sub & events/topics (one-to-many communication)

Use JSON data format

JavaScript API for interacting with service

Studio: Cloud 3

ThingSpeak

Studio: Cloud 3

(ThingSpeak)

Goals

Sequence diagrams to convey interactions

See Cloud Service used for collecting and analyzing data

(ThingSpeak) / TCP based embedded

See Twitter integration

See multi-way communication via

Publish-Subscribe like model

See use of "Public" channel

Studio: Cloud 4 (NextBus)

Studio:

Cloud 4

(NextBus)

Goals

Hardware:

OLED & External Libraries

Piezo / Sound

HTTP Requests (GET/POST, apitester.com/)

WebHooks and cross-service integrations

Studio: Cloud 5

(IFTTT, Sheets, OneWire, Slack, PIR)

Studio: Cloud 5

(IFTTT & webHooks)

Goals

Data logging via IFTTT & Sheets

OneWire for "bus" of Temp. Sensors

PIR Sensor & Slack WebHook

Assignment:

Cloud Cohesion

Goal: Complete basic IoT project!

Combine

UI (Assignment 1)

Behavior (Assignment 2)

Hardware (Assignment 3)

into working project.

Assignment:

Device-to-Device

Assignment:

Device-to-Device

Goal

See device-to-device interaction

Practice prior concepts (i.e., new streams/approach for brightness)

Studio:

Cordova Apps

Studio:

Mobile

Introduction to "hybrid" approach to app development.

PhoneGap Desktop (server) and PhoneGap Mobile (client)

Bringing RGB LED app to mobile.

Assignment:

Mobile

Goal

Short, simple assignment

Chance to catchup/fix errors on prior work