This document discusses the different technologies needed to turn on a lightbulb using IoT. It identifies hardware components like tablets, beacons, Raspberry Pi, and serial ports. It also lists wireless protocols like Bluetooth Low Energy, Z-Wave, and EnOcean. Finally, it mentions cloud services like Azure Storage Queues and development platforms like .NET, Xamarin, and Mono.NET that can be used to connect devices and control the lightbulb remotely.