Board Thread:Questions and Answers/@comment-174.59.137.122-20130715063746/@comment-1757231-20130715123308

Use the Rednet API (for non-peripheral communications) on the CC-Wiki, or Modem API (for Modem Peripheral commands) : beware, it's for Lua experts only! If you don't figure it out, you can try using Disk Drives instead, as a painstaking substitute. Furthermore, if you don't understand the mechanics of Lua, I suggest fully reading the Wiki's tutorial, or productively learning a Object-Oriented/Class program (Java, Flash, C, etc.).

It's also recommended to use Disk Drives, so you can control more than one Turtle running the same program.