door

env = {}
env.side = "right"
env.time = 3

rednet.open("bottom")
while true do
  evnt = {os.pullEvent("rednet_message")}
  if evnt[3] == "odrn:pc" then
    rs.setOutput(env.side,true)
    sleep(env.time)
    rs.setOutput(env.side,false)
  end
end