maintainPressure

-- Wrap the compressor
compressor = peripheral.wrap("back")

-- Target pressure variable.
-- Warning!
-- Tier 1 dangerous at 5, explodes at 7
-- Tier 2 dangerous at 20, explodes at 25
targetPressure = 4

-- Begin the procedure!
while true do
 currentPressure = compressor.getPressure()
 if currentPressure < targetPressure then
  redstone.setOutput("back", true)
  term.clear()
  print("Target:   ", targetPressure)
  print("Pressure: ", currentPressure)
  print("Pump:     Enabled")
 else
  redstone.setOutput("back", false)
  term.clear()
  print("Target:   ", targetPressure)
  print("Pressure: ", currentPressure)
  print("Pump:     Disabled")
 end
 os.sleep(10)
end