In the process of making some changes to my home network in an effort to reduce the amount of power I use for always-on equipment in the apartment. Or at least that’s what I tell people, actually I’m just in it for the gadgets.
Current network is my cable modem, connected to my home storage server/router, which is then connected to a WRT54g which is just being used as a switch and 802.11b/g access point. From there we have my desktop PC, and an Ethernet over powerline bridge to my entertainment center with the XBox 360 and the TiVo HD.
So the plan is to rip out the storage server (a Dell Dimension E521) and the WRT54g, replacing them with an Apple Airport Extreme with an external drive array. This also upgrades my wireless to 802.11n and my wired stuff to gigabit. Eventually, it’ll look something like this:
I picked up the Airport Extreme last night, planning to install it this weekend to take over routing and wireless. I figure I’ll keep the storage server around until I figure out what I want to do for an external drive array off the Airport. I’d like to get a drobo, but they’re still somewhat pricey to me. It is the simplest to maintain solution though.
I’d also like to keep a FreeBSD box on my network so I have something I can shell in to. Somewhat looking at the MSI Wind PC as a low power BSD box. I could mount storage from the Airport and just boot from a CF card (which the Wind PC supports, apparently) to keep power consumption down.
Of course, all of this means spending more money and adding to my pile of computer stuff I don’t use, which already contains a mini-ITX motherboard that I could use for a low-power BSD box, though it would mean buying a power supply and IDE/CF adapter, which would probably add up to most of the cost of the Wind PC and be less powerful. So I’m not sure which path I’m going to take.
I should probably just be happy with what I have and save my money, but what fun is that?
Now that I’m moved in to the new place, I’ve been giving some more thought to my temp and power monitoring projects. In the old place, my server was located in the same closet as the punch-block for the phone wiring. In the new place, they’re not even close. In order to have more than 2 thermal sensors, I’ll need to put the Basic Stamp II in with the punch block, so I’ll need a way of getting it’s reading back to my server for monitoring.
I was considering serial, using the phone line to the office as RS-485, but I remember all the headaches I had with 485 when working at SimPro, so I’m kindof leaning away from that. For the price of one 232/485 converter, I can get two XBee modules and carrier boards at Adafruit.
I’m also considering hacking apart my Kill-A-Watt to make a Wattcher, basically an XBee crammed into the Kill-A-Watt housing to allow for remote monitoring. I could then use that to track the usage of individual or small groups of devices, which would be nice even if I do decide to install T.E.D. in my breaker panel.
Been thinking a bit lately about projects to keep me busy in the new apartment, and I’ve got a couple of ideas that I think will be pretty neat.
First, I’ve been interested in tracking the temperature in my apartment. There is only one thermostat, and I can’t think of a good way to pull any info off of it, so I’ve been looking into other sensor equipment. The iButton stuff looks pretty promising; the temp-only sensor buttons are pretty inexpensive, and the HA7Net looks like a good way to interface to them without having to mess around with line level protocols. Since I don’t use the landline phones, I’m thinking I’ll cut off the connection to the phone company and reuse the existing phone jacks in the apartment to make a 1-wire bus. Just solder an RJ-11 plug onto the temp sensor iButtons, and I can put a sensor everywhere there’s a wall jack! The controller is about $155 and the sensors are $7.50/each in the quantities I’d be looking at.
The other thing I’d like to monitor is power consumption. I’ve got a Kill-a-watt, but that only works for a single outlet. I’ve been eying The Energy Detective, which installs into your breaker panel with a number of inductive probes and a connection to communicate it’s readings over the power lines (similar to X10.) The only problem is their software is currently only for Windows. The older version had a serial port on the receiver to communicate with, the new version has USB, and I suspect it’s just a USB to serial adapter of some kind. To do what I want to do (feed the data into Munin) I’d have to figure out how to talk to the thing, which might make for a good project. T.E.D. sells for $145.
I’m also going to need a new vacuum cleaner. The old one is Delia’s, so it’ll be going away. I’m leaning toward spending the extra money and buying a Dyson, specifically the DC 25. The reviews are all very good on them, and it sounds like they last forever. Seems like one of those things where it’s worth to spend the extra up front and get something you’re happy with instead of skimping and replacing it later because you hate it.
