Hack Your Litter Box


Cat poo stinks.  We all know it. Those of us who have cats, though frequently amazed at the sheer magnitude of stench our cuddly friends are capable of, do little to remedy the situation.  Sure, sometimes we buy the fancier kitty litter or the special food.  [agraham999] decided to be a little more proactive.  He built an automated exhaust system for the litter box. He wasn’t content to just rig a fan blowing to an exhaust vent either, he hooked it up to an automation system and a motion detector.  The total cost for the project was $80, not including the mac mini that serves as the brains.

Be sure to read through the comments for some very in depth discussion about power usage and solar conversions.

[via Boing Boing Gadgets]

Monitoring Home Energy Consumption


Power monitoring and home automation systems are coming to mainstream consumers. The New York Times covers the latest technologies (annoying login required) that improve and monitor energy efficiency in the home. As energy use and costs continue to increase, companies are popping up to offer cheaper solutions that will help consumers monitor energy usage, and decrease it simultaneously. Companies like Zigbee offer wireless protocols to track usage, and “smart metering” systems can communicate with appliances to reduce unnecessary energy usage.

Home automation systems can be set up to control a single system, such as a home theater, or multiple systems throughout a home, like audio, lighting, and temperature. Control4 offers controllers that will allow consumers to regulate their lighting, blinds, and temperature in their homes. Smart meters such as Echelon’s NES system offers users some great features, such as the ability to provide automated reads of electric and gas meters, and enabling load shedding during peak consumption periods, by controlling appliances like air conditioners and water heaters. By allowing the consumers to determine and control how much energy they use, they can successfully reduce their energy consumption levels a significant amount, but whether it’s worth the cost of investment remains to be seen. Although the prices of home automation systems have dropped from over $30,000 to about $5,000, it’s still much more than most consumers can afford.

We’ve covered home automation tools before. We like them because they’re still way more affordable than the offerings available, and the technology is more transparent. If you’ve got a creative and cheap solution to monitoring energy consumption, we’d love to hear it.

[via Waxy]

IR Controlled Relays


If you’re thinking of building some DIY home automation, this looks like an interesting idea. At the heart is a PIC16F84 that decodes IR signals and controls six outputs – in this case, relays to activate various appliances. The PIC is dirt cheap – if you get a deal on some relays you should be able to build a small local IR HA system for $30… This might be just the thing for my office. It’s cheap enough that it probably wouldn’t walk off.