So What Is It?

Hardware and software working together to get you the climate you want,
  • Where you want it: each room may have its own temperature
  • When you want it: you can set as many schedules as you want
  • In a smart way: math is more advanced than in your aunt's thermostat
  • Remotely: you can access it over Internet and from your mobile devices
  • Inexpensively: can be assembled from off-the-shelf components, and piece by piece over time
In addition, 
  • It saves you money: units work less
  • It saves your unit's life: they work in more favorable conditions
  • It allows you to get more of your units than dumber systems can
And last but not least,
  • It provides total visibility into what is going on: you don't have to take anyone's word about it, and can see everything for yourself.

Home Climate Control Remote: now on Android Market

Good Room
Sick Room

As of May 16 2011, Android application is available directly from Android MarketRead more...

Android + Arduino

DZ + Android + ADK

The core has been ported to work on Android OS using ADK devices as actuators. Arduino firmware is now available from the source repository at github, HCC Accessory Driver is at Android Market. Read more...

Going Wireless

As of July 29 2010, XBee ZB based devices are supported. Read more...



Back in 2000, there was a family with a newly acquired tri-level house in Phoenix, Arizona with just a little problem: freezing downstairs, scorching upstairs. Quest for a solution lead to a sad realization that there was nothing that was suitable to solve this problem, not even speaking about anything affordable. A difficult decision to go the DIY route was made, and the DIY Zoning Project was created, with the ambitious goal to beat existing systems by feature set and price. The path was difficult, but in a couple of years the project has firmly established itself on the first page of Internet search for "temperature zoning", and as of about 2006 it has become the link of reference, above all companies, big and small, that actually do this for living.

Since 2005, the DIY Zoning Project was in hibernation, for it just worked. By fall 2009 the need to keep it current came up again, as hardware running this project at people's installations started aging and dying, and software rot kicked in. It was decided that a total overhaul was necessary, since the world has moved on.

During the second phase of requirements analysis phase it has become clear that the project has outgrown the initial scope of a "temperature zoning" system, for in its revised state it can do so much more than just that.

So let's put the stake into the ground and declare that today, on November 17 2009, the new goal is set: this site needs to become the link of reference for the Internet search on home climate control, and whatever else we deem to be relevant to the task at hand along the way.

Laugh all you want, we've done it once already.

Because we feel your pain, for we've been hurting, too. And we're here to take care of that pain, so it is no more.