Intro to the “Internet of Things” using NetduinoNUFW presentation by Dean Willson 3/8/2016

AbstractIt is estimated that by 2020 there will be tens of billions of devices connected to the internet. As a .Net developer, devices like the Netduino provide a low barrier to entry for IoT utilizing your existing skills and tools. This will be an introduction to Iot using Visual Studio and Netduino.

Agenda• What and Why?• Intro to Equipment

Netduino Other Hardware/Devices/Peripherals Software

• Demo - Configuration MFDeploy• Demos - Development Visual Studio

What is IoT and Why?• Creating a network of “things”

Device to device Device to internet

• Examples Remote start car Open/close garage door on vacation Frozen pipe monitor (turn on heat tape)

General GearGeneral• Development board of some type (Netduino, Fez)• PC with USB connection – device config, file transfer and debugging• Digital MultimeterDemo• Netduino 3 WIFI • Electronics sample kit• Laptop

Netduino 3 wifi microprocessor

Netduino hardware• I/O, Serial GoBus• Power

3.3V, 5V USB or DC jack

• Features WIFI/Ethernet depending on model Button LED USB MicroSD

I/O• Digital Input/Output

SPI – synchronous Serial Peripheral Interface UART – Universal Asynchronous Recv/Transmit PWM – Pulse Wave Modulation I2C – (Inter-Integrated Circuit) multi-master, multi-slave, single-ended, serial bus

GoBus – Netduino quick connect sensor bus (like Arduino’s I2C bus)

• Analog Input/Output Reads as values 0-1023 10 bit

Netduino 3 WIFI

Accessorieshttp://www.amazon.com/gp/product/B00D9M4BQU?psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s00

Software• .Net MicroFramework (NetMF)• Visual Studio templates• Device Drivers

• Breadboard and PC Board design (Fritzing)

.Net Micro Framework (NetMF)• Scaled down version of the .Net Framework• No Generics, LINQ

NetMF Core features

MFDeploy• Windows Forms app to deploy configuration changes to the Netduino firmware• Examples: IP address, WIFI settings• Update Firmware

Visual Studio templates

Demo - simpleOnboard button and LED

YouTube video of onboard I/O demo

https://youtu.be/52876EXYaV0

Demo – putting it all togetherTemperature Sensor and LCD

Fritzing – Breadboard and PC Board design

YouTube video of LCD demo

https://youtu.be/xNXZT-Zgzs0

Temperature sensor and display

LCD using Shift RegisterIllustration source http://weblogs.asp.net/bleroy/improving-the-netduino-knight-rider-effect-with-a-shift-register

TMP36 temperature sensor• Source https://learn.adafruit.com/tmp36-temperature-sensor

Demo – InternetMVC webpage POST from Netduino – Save Temperature

Web POST request

MVC web application (temp log)

Production HardwareProduction example hardware - GHI Electronics• G30, G80 SoC (System on Chip, surface mount)• G120, G400 SoM (System on Module)

References• https://www.ghielectronics.com/technologies/netmf • http://weblogs.asp.net/bleroy/improving-the-netduino-knight-rider-effect-with-a-shift-register • https://en.wikipedia.org/wiki/Serial_Peripheral_Interface_Bus• https://en.wikipedia.org/wiki/Universal_asynchronous_receiver/transmitter

Dean Willson• Long time member of NUFW• Former President of fwPASS• Twitter: @deanwillson• Blogs: dean-o.blogspot.com, practicalhoshin.blogspot.com• LinkedIn: http://linkedin.com/in/deanwillson