local hMonitor = peripheral.wrap("back")
-- Monitor is on the back of the computer


term.redirect(hMonitor) --redirect console output to monitor

while true do
event = os.pullEvent()

--if an redstone event is pulled and the input from
--the pressure plate (left) is TRUE, increase count
if event == "redstone" and rs.getInput("bottom") then
  term.clear()
  term.setCursorPos(1,1)
  write("Decontamination in progress.")
  rs.setOutput("top",true)
  sleep("0.5")
  rs.setOutput("top",false)
  sleep("0.5")
  write("3")
  rs.setOutput("top",true)
  sleep("0.5")
  rs.setOutput("top",false)
  sleep("0.5")
  write("2")
  rs.setOutput("top",true)
  sleep("0.5")
  rs.setOutput("top",false)
  sleep("0.5")
  write("1")
  rs.setOutput("top",true)
  sleep("0.5")
  rs.setOutput("top",false)
  sleep("0.5")
  write("Decontamination completed.")
  rs.setOutput("right",true)
  sleep("2")
  rs.setOutput("right",false)
end

--this doesn't get called because there is no abort
--condition, but term.restore() will reset the console
--output to the computer screen itself
term.clear()
term.restore()