melonfarm.lua

local scanner = device["plethora:scanner"]
local Event = require("opus.event")

local function checkForMelon()
  local scanResults = scanner.scan()
  for _,block in next, scanResults do
    if block.name == "minecraft:melon_block" then
      return true,{
        x = block.x,
        y = block.y,
        z = block.z
      }
    end
  end
end
local function digFirstMelonFound()
  local found, coords = checkForMelon()
  if found then
    turtle.digDownAt(coords)
  else
    print("idle")
  end
end

Event.onInterval(5,digFirstMelonFound)
Event.pullEvents()