There is an EPT signal in the room. What is it trying to tell you?
flag = flag.replace("(", "{").replace(")", "}").replace("-", "_").upper()
We filmed the sign with a video camera and manually recreated the moorse signal. Decoding this moorse code gave us the flag.
Why do it the engineering way when you can do it the easy way.
EPT{WELL_DONE_MORSE_IS_C00L}