Smart SwitchSameer Khandekar

Agenda• What is it about?• Intro to Arduino• Hardware architecture• App architecture• Code & Demo• Resources

What is it about?• Building Hardware and App• Arduino, Bluetooth & Power Relay• Xamarin, MVVMCross

Intro to Arduino• What is Arduino

Intro to Arduino• What is Arduino• Open source hardware platform• Comes in different flavors• Various shields are available

• Arduino Terminology (Shields, Schematics, Sketch)• Potential for Arduino

Hardware ArchitectureBluetooth Module

Arduino Board

LED + Resistor Power Relay

Hardware Pin Diagram + Tips

Hardware Schematics• Schematics

Hardware Sketch• The Sketch

App architecture• Requirements• Cross platform App• Share common code• Same Workflow on all platforms• Different Ux per platform• Different BT Implementation per platform

App architecture• Design Patterns• MVVM• IOC• Singleton

• Framework

.NET PCL

View Model

Android Windows Phone iOS

View Bluetooth View Bluetooth View Bluetooth

Code & Demo

Resources• https://www.hackster.io/sameerk/smart-switch• Arduino IDE - https://www.arduino.cc/• Xamarin - http://www.xamarin.com/• MVVMCross – NuGet package

• @sameerIOTApps• https://www.linkedin.com/in/sameerk1