rednet.open("left");
print("Elevator Control Client v0.3 ")
print("------------------------------------")
print("Use your rednet device to control")
print(" -- 'UP' to move up")
print(" -- 'DOWN' to move down")
print(" -- 'UPDATE' to perform firmware update")
print("")


while true do
    id, command = rednet.receive()

    if (command == "UP") then
        turtle.up()
    end
    if (command == "DOWN") then
        turtle.down()
    end
    if (command == "UPDATE") then
        id, link = rednet.receive()
        print ("Updating firmware....")
        sleep(5)

        shell.run("delete startup");
        shell.run("pastebin get " .. link .. " startup")

        print("Update DONE.")
        sleep(2)
        os.reboot()
    end
end