README

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Arduino Powered Thermostat
 *
 * The Initial Developer of the Original Code is Steve Kamerman.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * ***** END LICENSE BLOCK ***** */
 
First and most importantly, you should not attempt to modify your existing thermostat or build one as shown here unless you are qualified to do so.  There is a real risk of electrocution, fire or damage to your Heat/AC unit, even if you follow these guidelines perfectly.

This repo is basically a straight dump of my codebase.  I wrote this between 10/2010 and 1/2011 and have been using the LCD_Thermostat_V3 code for my thermostat at my house for several months.

Here's a breakdown of the folders:

* LCD_Thermostat_V1
  My first try at the thermostat codebase.  At this point I had the LCD working, 
  a photoresister for auto-dimming and the thermistors for temperature input.
  
* LCD_Thermostat_V2
  For V2, I prototyped all the temperature averaging and adjusting code as well
  as the relay control code.  This is very messy and I never used it in production.

* LCD_Thermostat_V3
  This is the version I am using.  It is fully functional and has been running since
  January 2011.  I noticed that it did freeze and the heat was stuck on once in 6
  months.  I attibuted this to a very poor source of regulated power.
  
* thermistor
  A thermistor diagnostics sketch
  
* Thermostat_RelayBoard
  The code that I used to diagnose / stress test my relay board that is used to switch 
  the Heat, AC and Fan power.
  
*** I am working on getting some diagrams, pictures and videos ***