The Internet of Things (IoT)

Jason Kanaris

jasonkanaris@gmail.com

@phantomtypist

Agenda

• What is the Internet of Things?

• Introduction to Basic Microelectronics

• The .NET Micro Framework (NETMF)

• Coding with NETMF (demos)

• Connecting your devices to the Internet

• Interactive Demo

What is the Internet of Things (IoT)?

• There is no clear definition of what the “things” are.• Billions and billions of devices by 2020.• Predicted $8+ trillion dollar market by 2020.

Examples of IoT

Nest Thermostat Nest Smoke Detector

Examples of IoT

Samsung Refrigerator Global Radiation Monitoring

Introduction to Basic Microelectronics

Don’t burn down your house!

Basic components

Datasheets• How to Read Datasheets: https://www.sparkfun.com/tutorials/223

Analog vs. Digital Signals

Analog

Digital

Interfacing with the Physical World

• GPIO (General Purpose Input / Output)

• Digital I/O

• Interrupts

• Analog Input

• PWM (Pulse Width Modulation)

• Communications Protocols/Interfaces

• SPI (Serial Peripheral Interface) – 3 to 4 wires

• I2C (Inter-Integrated Circuit) – 2 wires

• CAN (Controller Area Network)

• One Wire – 1 wire

• UART – 2 wires

Arduino

http://www.arduino.cc/

Shields

http://shieldlist.org/

The Importance of Watchdog Timers

SECURE

and

ENCRYPT

ALL communications!

The .NET Micro Framework Origins

• Microsoft Research created the Smart Personal Object Technology (SPOT) between 2001 and 2004.• First products used in:

The .NET Micro Framework (NETMF)

• NETMF was released in 2009.

• Free and open-source.

• Consists of a subset of the .NET Framework.

• Versions NOT in sync with the other .NET Framework versions.

• Garbage collection

• Threading

Working with NETMF

• You can use either C# or VB.NET.

• Support for Visual Studio 2010 and 2012.

• Beta support for Visual Studio 2013.

• Debugging on hardware (breakpoints, stepping into code, etc.)

• The runtime itself fits in as little as 64KB.

• Working within tight constraints:

• Available code storage (flash memory) as little as 64KB.

• Available RAM as little as 42KB.

NETMF Hardware Types (Arduino form-factor)

Netduino Plus 2FEZ Cerbduino

NETMF Hardware Types (Gadgeteer / GoBus)

Netduino GoFEZ Cerberus

NETMF Hardware Manufacturers

• GHI Electronics (https://www.ghielectronics.com/)

• The Mountaineer Group (http://www.mountaineer.org/)

• Secret Labs (http://netduino.com/)

Coding with NETMF

DEMO

Connecting Your Devices

to the Internet

Sample Architecture

GatewayDevice

IoT Devices

Internet IoT Back-end

Possible Gateway Devices

• PC or Server• Raspberry Pi

• Mono• NodeJS• Python

• Intel Galileo• Intel Edison

Interactive Demo

Resources (Learning Microelectronics)

• SparkFun:

• https://learn.sparkfun.com/

• https://learn.sparkfun.com/tutorials/tags/concepts

• Adafruit: https://learn.adafruit.com/

• All About Circuits: http://www.allaboutcircuits.com

• How to Solder: http://www.aaroncake.net/electronics/solder.htm

• Bildr: http://bildr.org/

Resources (Starter Kits)

• SparkFun Inventor’s Kit• https://www.sparkfun.com/products/12001

• Adafruit Arduino Starter Kit• http://www.adafruit.com/products/68

Resources (Hardware)

• SparkFun Electronics: www.sparkfun.com• Adafruit Industries: www.adafruit.com• Digi-Key: www.digikey.com• Arduino Shield List: www.shieldlist.org• Mouser: www.mouser.com• Jameco: www.jameco.com• TinyCLR: www.tinyclr.com/hardware• Solarbotics: www.solarbotics.com• DFRobot: www.dfrobot.com• Parallax: www.parallax.com• Arduino: www.arduino.cc

Questions?