If you enter a room, then turn on your Hue lights

Create custom workflows effortlessly by selecting triggers, queries, and actions. With IFTTT, it's simple: “If this” trigger happens, “then that” action follows. Streamline tasks and save time with automated workflows that work for you.
13 triggers, queries, and actions
Philips Hue connected bulbs and bridge let you to take full control of your lighting. Whatever you want to do with your lighting, Hue can.
LinkDesk Room Locator is the next generation motion detector that triggers services and devices as you enter or leave a room. Available at Amazon