OpenComputers is a mod that adds computers and robots into the game, which can be programmed in Lua 5.2. It takes ideas from a couple of other mods such as ComputerCraft, StevesCarts and Modular Powersuits to create something new and interesting.

To run a mining turtle, do the following:

  • - craft the mining turtle
  • - label it: label set DadsTurtle
  • - right-click the turtle to bring up its interface
  • - load a program from the internet: rom/programs/http/pastebin get 3mkeUzby OreQuarry
  • - run the "OreQuarry" program: OreQuarry 40 70

NB: the 40 is how big you want the quarry (40 blocks on a side). The 70 is what height you want it to start mining from.

MORE INFO
Minecraft Forums
Offical Wiki