Scan Program

local geolyzer = component.proxy(component.list("geolyzer")())
local rs = component.proxy(component.list("redstone")())

--local component = require("component")
--local geolyzer = component.geolyzer
--local rs = component.redstone

function sleep(timeout)
  checkArg(1, timeout, "number", "nil")
  local deadline = computer.uptime() + (timeout or 0)
  repeat
    computer.pullSignal(deadline - computer.uptime())
  until computer.uptime() >= deadline
end

while true do
  local scan, msg = geolyzer.analyze(2)

  if not scan then
    error(msg)
  end

  if (scan["name"] == "minecraft:air") then
    rs.setOutput(3, 0)
  else
    rs.setOutput(3, 15)
  end

  sleep(5)
end