Passive home automation
Hey all, been working out idea's for a project recently, and kind of stuck on one point. So the plan is to do up some automation in my basement. Right now I was starting with my desk, using a phidget usb relay controller to control desk lamps, move on to insteon for actual ceiling lights, but one thing I want to do would be passive control. So if the system detects me coming down the stairs it will turn on the ceiling lights, then when it detects me sitting at my computer the computer will log me in. I was thinking rfid, but not finding any hobby boards for rfid with ranges over a couple of centimeters. I know people have done this with bluetooth, but on testing my computer will connect to my phone if I'm just about anywhere upstairs above the computer and kills the point of this whole endeavor so any and all help would be greatly appreciated. Thanks.