Well that's your own damn fault for not RTFM! (Had that system at an office: it came with a manual of ~200 pages, but nobody wanted to learn the special variant

Well that's your own damn fault for not RTFM! (Had that system at an office: it came with a manual of ~200 pages, but nobody wanted to learn the special variant of Morse code that the lights understood. Somehow we found the commands for "full on" and "full off", and the manual was abandoned. Seriously, 200 pages on operating a light? Technology making lives easier, riiiight there.)