It 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 is an introduction to IoT using Visual Studio and Netduino.

1. Intro to the “Internet
of Things” using
Netduino
NUFW presentation by Dean Willson 3/8/2016

2. Abstract
It 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.

3. Agenda
• What and Why?
• Intro to Equipment
 Netduino
 Other Hardware/Devices/Peripherals
 Software
• Demo - Configuration MFDeploy
• Demos - Development Visual Studio

4. 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)

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

6. Netduino 3 wifi microprocessor

7. Netduino hardware
• I/O, Serial GoBus
• Power
 3.3V, 5V
 USB or DC jack
• Features
 WIFI/Ethernet depending on model
 Button
 LED
 USB
 MicroSD

8. 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

9. Netduino 3 WIFI

10. Accessories
http://www.amazon.com/gp/product/B00D9M4BQU?psc=1&redirect=true&ref_=oh_aui_
detailpage_o09_s00

11. Software
• .Net MicroFramework (NetMF)
• Visual Studio templates
• Device Drivers
• Breadboard and PC Board design (Fritzing)

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

13. NetMF Core features

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

15. Visual Studio templates

16. Demo - simple
Onboard button and LED

17. YouTube video of onboard I/O demo
https://youtu.be/52876EXYaV0

18. Demo – putting it all
together
Temperature Sensor and LCD

19. Fritzing – Breadboard and PC Board
design

20. YouTube video of LCD demo
https://youtu.be/xNXZT-Zgzs0

21. Temperature sensor and display

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

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

24. Demo – Internet
MVC webpage POST from Netduino – Save Temperature

25. Web POST request

26. MVC web application (temp log)

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

28. References
• https://www.ghielectronics.com/technologies/netm
f
• http://weblogs.asp.net/bleroy/improving-the-
netduino-knight-rider-effect-with-a-shift-register
• https://en.wikipedia.org/wiki/Serial_Peripheral_I
nterface_Bus
• https://en.wikipedia.org/wiki/Universal_asynchro
nous_receiver/transmitter

29. 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