OOPS, I forgot to mention that you have to have the LiquidCrystal_I2C library directory installed in the Arduino IDE's "Libraries" directory or it won't compile.? Just to keep you from having to hunt for the correct llibrary, I've attached a zip file containing the library files.? Unzip the file to somewhere you can find it, and you will have a directory called "LiquidCrystal_I2C? .. Next, open your Arduino IDE's "Libraries" directory and move this complete directory intact into the Libraries directory for the IDE.? Once its there, the program should compile just fine.
Jim Sheldon - W0EB
Jim Sheldon