startup

local reactor = peripheral.wrap("back")
local output
local looper = true

function customSleep()
  local timer = os.startTimer(5)

  repeat
    local sEvent, param = os.pullEvent( "timer" )
  until param == timer
end



while true do
  output = "" .. os.time()
  if not reactor.getConnected() then
    output = output.. "no reactor connected"
  else
    if reactor.getActive() then
      output = output .. " reactor is active at "
    else
      output = output .. " reactor is disabled at "
    end
    output = output .. reactor.getEnergyStored() .. "RF"

    if reactor.getEnergyStored() < 3000000 then
      reactor.setActive(true)
    end
    if reactor.getEnergyStored() > 7000000 then
      reactor.setActive(false)
    end

  end

  print(output)
  os.startTimer(5)
  os.pullEvent( "timer")
end