Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83 based; site hou2h.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxl!houxm!hou2h!an From: an@hou2h.UUCP (A. Nguyen) Newsgroups: net.auto Subject: Re: Headlight signals? Message-ID: <613@hou2h.UUCP> Date: Wed, 12-Sep-84 13:10:28 EDT Article-I.D.: hou2h.613 Posted: Wed Sep 12 13:10:28 1984 Date-Received: Fri, 14-Sep-84 20:55:55 EDT References: <1750@inmet.UUCP> Organization: AT&T CP, Holmdel NJ Lines: 45 - > Could somebody post the headlight signals? Headlights are binary devices: they can only be either ON or OFF (in the daytime, HI beam or LO beam at night). Therefore to transmit any amount of information at all, they must be coded much like a string of 1's and 0's. That, and the signals must be taken in context. A bit of common sense goes a long way here. Here's a list of the more popular ones: --------------------------------------------------------------------------- Binary code Context Meaning --------------------------------------------------------------------------- 1010 you're driving a big truck "OK you've cleared my front or pulling big trailer, and bumper -- you can pull in have just passed signaller now." 10101010 .. you're just tooling along, "Behave yourself -- there's signaller going the other way a policeman up ahead." or especially if you are "Be careful -- bicyclist/ approaching blind curve pedestrian/lose animals/ other weird shit up ahead." 11111111 .. dark rural road, signaller "You want high beam? I've going the other way got high beam, too!" 11101110 .. you're in the left lane, "Move over slow poke! there's room to the right, You're holding up traffic." signaller is behind you in pinko import car with enough candlepower to bring the shuttle in for a night landing 10101010 .. two lane road, signaller "Hold STEADY -- I'm pulling approached you from behind out to pass." so fast you had to check to make sure you're not in reverse 10101010 .. urban street, 3am, you're "Wake up, drunkard! You blotto, coming home from a are weaving all over memorable night the road!"