In a previous post, we covered how to stream music to multiple rooms in your house using the iPhone (or iPod Touch) and Apple’s Airport Express. In that article, I mentioned convention home automation: turning lights on and off, monitoring rooms, etc. I’ll explain a few options using inexpensive hardware and software combinations.
I’ve been using various home automation solutions for about 10 years. The only affordable solution used to be X10. It worked reasonably well and is still supported by a number of free software projects (Mr. House, Heyu, etc.). In fact, until just a few weeks ago, I used Heyu as a bridge between my homebrew web automation interface and my X10 serial controller. While the flexibility and utility were fantastic, a few nagging issues helped me decide to take the next step: Insteon. (If you would like to know more about X10, Heyu and Mister House, a quick search online will yield a few days worth of reading.)
Insteon is X10 evolved. X10 was a passive system that sent uni-directional commands from the main controller (CM11A) to various X10 modules throughout your house over existing power lines. Installation: very easy, reliability: ranged from fair to take-a-wild-guess. The problem lies within the fact that most X10 devices are “stupid.” They listen for a command, and (if you’re lucky) perform a simple operation: turn on, turn off, dim, etc. Also, each module needs a specific X10 “id” that is usually set by a knob. Insteon eliminates both of these issues by giving each module a unique identifier from the factory (think of it like a MAC address) as well as the ability to respond to commands so that the controller (in this case the Insteon PowerLinc) knows that the command was recieved and can even check a module’s current status. Each module also acts as a repeater to keep signals strong throughout large installations.
There are several ways to automate your home and use your iPhone (or iPod Touch) to control it all. I will summarize two of the turnkey options available.
(more…)
Tags: home automation, Insteon, iphone, X10