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Send A Message To An LED Sign

An anonymous reader submits "I just got a Pro Lite LED sign today. After a few minutes splicing and wiring up a DB9 to RJ11 connection, and a little fun with python, I've got a script that lets me take input from the web and display it on the sign. Eventually it will have other, more useful, purposes, but I figured I'd let you guys play with it as it is. There's also a log of past messages."

55 of 316 comments (clear)

  1. Imagine... by mdrejhon · · Score: 4, Funny

    Just think of the possibilities with the Times Square billboard! :D

    1. Re:Imagine... by JabberWokky · · Score: 5, Funny
      A beowulf cluster of these things!!
      No, seriously!! We could...uhh....
      *runs*
      It is pitch black. You are likely to be eaten by a grue.

      With a beowulf cluster of LED signs, it's unlikely to be pitch black. Thus it can be taken seriously as an anti-grue measure.

      --
      Evan "Or a Vin Disel counter-measure"

      --
      "$30 for the One True Ring. $10 each additional ring!" -- JRR "Bob" Tolkien
  2. Hah by lancomandr · · Score: 5, Funny

    Before the story went public....I input to the sign "You're about to get RAPED by slashdot!" Now the story is public. No more website.

    --

    "Quis custodiet ipsos custodes?"

    1. Re:Hah by __aavhli5779 · · Score: 5, Insightful

      This may get modded down, but the guy who posted the article is an utter moron.

      He's already posted this link on two message boards (Ars Technica and Something Awful), to be informed that his copy of IIS Personal Web Server, included with Windows, which allows a maximum of 5 connections, couldn't stand up to the onslaught.

      Evidently, he decided posting it on Slashdot was a logical next step.

    2. Re:Hah by another_henry · · Score: 4, Insightful

      Notice how the submitter was anonymous... I don't think it was the same guy as the sign owner himself.

      --
      "Studies have shown that people who eat peanuts live longer than those who do not eat."
  3. That's a good idea by HiQ · · Score: 5, Funny

    Maybe you can use the smoke that's coming from your computer right now as a screen for looking at the Venus transit. You won't be using that for a while I guess.

    1. Re:That's a good idea by joshuaobrien · · Score: 5, Funny

      Maybe you can use the smoke that's coming from your computer right now as a screen for looking at the Venus transit.

      Or to implement a Native American wireless communication protocol...

  4. Darn.. by Insurgent2 · · Score: 3, Funny

    The Quake dudes on your segment are gonna be pissed!

  5. connection speed..? by Polkyb · · Score: 5, Funny
    After a few minutes splicing and wiring up a DB9 to RJ11 connection

    Have you thought of trying ethernet...? I hear it's a bit quicker than a serial connection and may help prevent the /. effect...

    ;-)

    --
    I've never shoed a horse, but I once told a donkey to piss off!
  6. Excuse me, but ... by krumms · · Score: 3, Funny

    I've got a script that lets me take input from the web and display it on the sign. Eventually it will have other, more useful, purposes, but I figured I'd let you guys play with it as it is.

    Are you FUCKING INSANE?

    1. Re:Excuse me, but ... by xsupergr0verx · · Score: 3, Funny

      Yeah, that's the equivalent to a kick me sign on his back.

      Actually, closer to the sign Bruce Willis wore briefly in Harlem in Die Hard 3...

      --

      Click here for a free picture of an iPod!
    2. Re:Excuse me, but ... by Tokerat · · Score: 4, Insightful


      It's called TOS, or terms of service. This guy is going to get an angry call from his cable provider come 9AM, and they'll probably take the wire down right off his house lol

      As for the /. effect, it can last for a long time. As long as that story is on the front page.

      Hell, I post an occational image on Fark and you should see the logfiles go apeshit

      --
      CAn'T CompreHend SARcaSm?
  7. Re:The sign of a slashdotting by Einer2 · · Score: 5, Funny

    That's a pity. I wanted to add a "First Post" scrolling LED message...

    --
    Microsoft delenda est!
  8. Been said before, will be said again: by BodyCount07 · · Score: 4, Insightful

    Why on earth would you submit your own website when you know it will go down in a matter of seconds? Authors should have to start proving some sort of minimal bandwidth requirement before submitting their own site. I'm tired of people hosting web pages on their home DSL lines.

  9. Anyone on the Web can write on your sign? by shanen · · Score: 4, Funny

    Either you're a VERY brave man or this thing is locked in a closet somewhere. If it's visible from the street, you're in a heap of trouble, boy.

    --
    Freedom = (Meaningful - Coerced) Choice != (Speech | Beer^2), and sad sock puppets' bad mods avail them naught.
  10. What goes around ... by torpor · · Score: 3, Funny

    ... comes around.

    In the early days of the web, back when men were men and browsers were something nobody really wanted to write, there was a webcam ... before there were webcams ... at Netscape ... before there were dot-com crashes ... that was powered by a CGI script ... before there was web application services (tm IBM^M^M^MMicrosoft^M^M^M^M^M^M^M^M^MSCO) ... that was pointed (the webcam, stay with me) ... at an ...

    LED sign. To which you could send your own messages, laugh while your coffee and TSP reports get cold, and marvel at the 'wonders of that modern Internet thingie'.

    Now any punk with a screwdriver and half a tab key can hack their own 15 minutes of signage ... I'm just ... not ... inspired by it all any more.

    So I'm not even gonna visit the link.

    --
    ; -- the corruption of government starts with its secrets. a truly free people keep no secrets. --
    1. Re:What goes around ... by jolshefsky · · Score: 3, Funny
      ... laugh while your coffee and TSP reports get cold ...
      Do you really mean Tandy Service Plans? I think you mean TPS--and while I'm here, I noticed you didn't put a cover sheet on yours. Did you get the memo? ...
      --
      --- Jason Olshefsky

      Karma: Poser (mostly affected by adding this line long after everyone else did)

  11. Original /.ing error code by frs_rbl · · Score: 5, Funny
    Traceback (most recent call last): File "C:\Inetpub\wwwroot\sendmessage.py", line 13, in ? tty=SerialPort("COM1", 1000, 9600) File "C:\Inetpub\wwwroot\SerialPort_win.py", line 117, in __init__ raise SerialPortException('Unable to open port') SerialPort_win.SerialPortException: Unable to open port Exception exceptions.AttributeError: in > ignored
    I suppose he's busy debugging now
    --
    This is not my opinion. Actually, it's not even an opinion. And I'm nowhere to be seen near it
    1. Re:Original /.ing error code by Anonymous Coward · · Score: 5, Funny

      Perhaps that's the result of him frantically cutting the serial cable with a butter knife.

  12. Famous last words by GammaTau · · Score: 5, Funny

    Slashdot hits you. You die. --More--

    1. Re:Famous last words by Borg453b · · Score: 5, Funny

      Earlier that day:

      You apply LED to internet connection.
      You begind praying to Slashdot for attention.
      You finish your prayer. You feel that slashdot is displeased.
      The LED is cursed. You cannot disconnect it from the internet.
      The voice of slashdot booms: "Thou hast angered me."

      --

      - Mad, ingenous - they've both left you puzzled -
    2. Re:Famous last words by suicideartist · · Score: 3, Funny

      i'm pretty sure the slashdot effect is more like turning undead for high level clerics, anything under a certain level just explodes once it gets within range.

  13. Re:AYB... by xsupergr0verx · · Score: 5, Funny

    Your server has no chance to survive make your time. Ha ha ha ha ha...

    --

    Click here for a free picture of an iPod!
  14. Could be worse by xsupergr0verx · · Score: 5, Funny

    At least he didn't code it into his spiffy new Nokia phone and has to wave his arm for the next 8 hours to display our messages.

    --

    Click here for a free picture of an iPod!
  15. Who, in the BLUE HELL, are you? by Anonymous Coward · · Score: 3, Funny

    This is a FREE UNIVERSE, buddy. If you don't like it, eat shit and DIE. I'll submit on 2600 baud if I so fucking like.

    1. Re:Who, in the BLUE HELL, are you? by Idarubicin · · Score: 3, Funny
      2600 baud huh? You must've done a little too much LDS during the late 80's to remember having a 2600 baud modem.

      2600? That's nothing.

      I can turn mine up to eleven.

      --
      ~Idarubicin
  16. Here's the site by NemesisStar · · Score: 5, Informative

    Well seeings how I think I was one of the only people to be able to load it up before it went down, here is what was on the site. This is pretty much it (very simple interface), the only thing you can't see here are "Send Now" and "blank sign" buttons and a dark blue background.

    Leave a Scrolling Message for Mark
    You can leave a message on the scrolling message board for Mark, or see the log of messages already left.

    This will replace the existing message of:

    [Tue 02:55 24.5.54.115]
    It is pitch black. You are likely to be eaten by a grue.

    Below are some simple commands you can use. Insert the command text where you want the command result to be. Hey folks, this isn't XHTML. If you want to use a tag, please make sure it's in all caps or it doesn't work.

    Graphic Blocks
    There are 26 reprogramable graphic blocks.
    <BA> Telephone <BB> Glasses <BC> Tap <BD> Rocket <BE> Monster
    <BF> Key <BG> Shirt <BH> Helicopter <BI> Car <BJ> Tank
    <BK> House <BL> Teapot <BM> Knife & Fork <BN> Duck <BO> Motorcycle
    <BP> Bicycle <BQ> Crown <BR> Sweet Heart <BS> Arrow Right <BT> Arrow Left
    <BU> Arrow Down-Left <BV> Arrow Up-Left <BW> Mug of Beer <BX> Chair <BY> High-heeled Shoes

    Colors
    There are 26 color modes.
    <CA> Dim Red <CB> Red <CC> Bright Red
    <CD> Orange <CE> Bright Orange <CF> Light Yellow
    <CG> Yellow <CH> Bright Yellow <CI> Lime
    <CJ> Dim Lime <CK> Bright Lime <CL> Bright Green
    <CM> Green <CN> Dim Green <CO> Yellow/Green/Red
    <CP> Rainbow (Default) <CQ> Red/Green 3D <CR> Red/Yellow 3D
    <CS> Green/Red 3D <CT> Green/Yellow 3D <CU> Green on Red
    <CV> Red on Green <CW> Orange on Green 3D <CX> Lime on Red 3D
    <CY> Green on Red 3D <CZ> Red on Green 3D

    Note:
    Some of these color combinations look so bad that they should require a permit.

    Character Sizes
    <SA> Normal (Default) <SE> Flashing Normal
    <SB> Bold (Wide) <SF> Flashing Bold (Wide)
    <SC> Italic <SG> Flashing Italic
    <SD> Bold Italic (Wide) <SH> Flashing Bold Italic (Wide)

    Display Functions
    <FA> AUTO
    Random color & presentation <FB> OPEN
    <-- Open from Center --> <FC> COVER
    <-- Covers Text --> <FD> APPEAR
    Instantly replaces text <FE> CYCLING
    Rolling Colors
    <FF> CLOSE <--
    Blank screen right to left <FG> CLOSE -->
    Blank screen left to right <FH> CLOSE --><--
    Blank screen outter to center <FI> SCROLL UP
    Scroll up from bottom <FJ> SCROLL DOWN
    Scroll down from top
    <FK> OVERLAP
    Two layers slide together to form text <FL> STACKING
    Falling dots form text <FM> COMIC 1
    PacMan <FN> COMIC 2
    Random creature walking
    <FP> PAUSE
    Short delay of motion <FQ> SLEEP
    Blank screen until the next timer activates <FR> RANDOM
    Random dots appear forming text <FS> SHIFT <--
    Roll message right to left (Default) <FT> TIME/DATE
    Show time and date, no choice of formatting
    <FU> MAGIC
    Change text color each time <FV> THANK YOU
    Cursive "Thank you" <FW> WELCOME
    Cursive "Welcome" <FX> SPEED 1 <FY> SPEED 2
    Jittery

    1. Re:Here's the site by kiwirob · · Score: 5, Funny

      Last seen on the LED screen before it went down...

      <blink>Free Porn Here</blink>
      <blink>Penis Enlargement Pills Here</blink>
      <blink>Reduce Debt with free $10,000 Credit Card Now</blink>

  17. I hope he doesnt have kids..... by Jeff+Benjamin · · Score: 3, Funny

    It was only a matter of time before some clever slashdotter figured out how to make the leds light up to look like the goatse man.

  18. help needed by DrStrangeLoop · · Score: 5, Interesting

    speaking of this topic, i own a LED dotmatrix display for which i could use some specs... it features about 12 characters width of 7x5 [if im not mistaken] red LEDs. the only visible company label is SIGMA, which has not proven very helpful since this is a brand of the very large METRO group who are not exactly helpful to small consumers. the device features a rj-11 input, presumably for getting the time, and an IR port for inputing static data. any information helping me to put my current server load or pfctl logs on the display would be highly welcome.

    thnx,
    strangeloop

  19. Mirror anyone? by craigmarshall · · Score: 5, Funny

    Doesn't ANYONE have a mirror?!

    1. Re:Mirror anyone? by ocelotbob · · Score: 3, Funny
      --

      Marxism is the opiate of dumbasses

    2. Re:Mirror anyone? by oPless · · Score: 5, Funny



      What, and have the messages come out backwards ?

  20. Here's a useful purpose... by MonkeyBot · · Score: 5, Funny

    I've always wanted to get an LED sign for the back of my car. Yours fixes the problem that I had with actually buying one. Now, I could just edit the Unix "fortune" program to quip random, witty, profane statements to drivers that piss me off rather than having to type the whole statement in. Thanks.

  21. Want to know why it's /.'ed? by HellKnite · · Score: 3, Interesting

    Let's take a quick look at this line:

    There's also a log of past messages.

    So... log.asp eh? Windows? Or some silly man running asp under apache? 'Nuff said...

    Oh, and I guess maybe it's on some cable modem or DSL provider... that doesn't help. :P

  22. Maybe he's got religion... by Anonymous Coward · · Score: 3, Funny

    And this is the digital equivalent of a hair shirt.

    Or maybe he was looking to compile a list of all the lastest euphemisms for gentials, excrement, related fuctions, and common miss- or alternative spellings. In which case, he's brilliant. Mission Accomplished.

  23. Re:The sign of a slashdotting by sg_oneill · · Score: 5, Funny

    Lets see.

    Half the worlds geeks visiting simultaneously a website having its bandwidth narrowed to a 9.6k serial pipe with the repeated message "j00 b33n ownz3d by goatse LOL". Let me think...

    hmm...

    This is why we cant have nice things. :(

    --
    Excuse the Unicode crap in my posts. That's an apostrophe, and slashdot is busted.
  24. Cannon Fodder by ari_j · · Score: 4, Funny

    This is just begging for it. It's not even a challenge - at 1:30 AM Pacific time it doesn't even stand a chance. Why not host it on an 8086 running Elks or Minix off of a 360KB floppy while you're at it? And power it by a couple of potatoes, too.

  25. story poster will have fun on 56K by Barbarian · · Score: 4, Funny
    Cablelynx, his provider, is going to shitcan him:
    f. Service Restrictions. You agree to use your Service for legal purposes only. Any illegal use shall be cause for immediate termination of Service. You agree that your use of the Service shall be for personal use within the confines of one household or business. You shall not share Service, or use Service to host a server site for FTP, telnet, e-mail hosting, web hosting; or use Service in conjunction with a VPN (Virtual Private Network) or VPN tunneling protocol; or sublet, resell, assign, or provide access to any third party on any basis under the terms of this Agreement. Violations of any of these terms shall be cause for immediate termination of Service and may be grounds for Company's refusal to provide future Service to you. You agree that you will not web host or utilize continuous streaming video or audio for periods of more than four hours with at least one hour of inactivity between uses. You understand that the Internet is a public place and you are responsible for your actions or the actions of those that access the Internet through your Service. It shall be your responsibility to provide, at your own cost, any necessary firewall, or Internet security software to prevent unauthorized access of your computer via the Internet.

    He's probably killed off service for others in his neighborhood too:

    (from tcptraceroute>

    13 89-228.vbrg-a5.cablelynx.com (24.204.89.228) [closed] 1713.840 ms * 2018.488 ms

    1. Re:story poster will have fun on 56K by __aahlyu4518 · · Score: 4, Funny

      You agree that you will not web host or utilize continuous streaming video or audio for periods of more than four hours with at least one hour of inactivity between uses.

      So he hosted a website for 4 seconds... he will be fine... ;-)

  26. Never seen this?? by Hurricane78 · · Score: 5, Interesting

    Never seen this?

    --
    Any sufficiently advanced intelligence is indistinguishable from stupidity.
  27. Slashdotting a LED by Chran · · Score: 3, Interesting

    I think this is the first time a LED has been slashdotted.

  28. One of the funnier submissions. by dj245 · · Score: 4, Funny
    I guess the submission widget is closed due to slashdot. With all the cursing and trolling people did with the sign though, the good ones sort of got lost. My favorite:

    Trapped in Pro Lite LED Sign factory. Please send help!

    classic. I don't really thing it will be very interesting unless the sign is posted in a public place, with a strict swear filter. Maybe some moderation oversight. Put it in a pub; loads of fun. The true entertainment potential of this thing is vastly underestimated.

    Then again, when you're drunk, anythings funny. Except those "in Soviet Russia" jokes.

    --
    Even those who arrange and design shrubberies are under considerable economic stress at this period in history.
  29. Re:its loading for me by psoriac · · Score: 4, Funny

    Seeing as how it's (was?) an IIS server, a blue background is rather appropriate.

    Was the text white, by any chance?

    --
    I browse Slashdot at +3, Funny
  30. Co-incidence? by MtlDty · · Score: 5, Funny

    Perhaps its just a coincidence, but the ticker board in Times Square is now scrolling: 'Error 404 Page not found' ?

  31. Ethics of Article Posting (offtopic) by harikiri · · Score: 4, Insightful

    Slashdot needs to post an article, on above all things - article posting ethics. This current article demonstrates a trend that's happening recently, whereby people are seeing someone's cool homepage (or submitting their own), and forwarding it to hundreds of thousands of internet users via a Slashdot article.

    I mean please, linking a CGI page on a windows server hosted on your cable modem connection, with a throughput of 9.6K... that's not gonna hold up 5 seconds after slashdot posts the article.

    This is hopelessly offtopic, but it's something that people need to start thinking about before they submit an article.

    --
    Man watching 6 MSCE's around a sun box, looks alot like the opening scene's of 2001:space odyssey...
  32. Re:Chance? by marklyon · · Score: 5, Informative

    I'm the guy running the sign. I didn't intend for it to be posted here, but I'll be happy to point you in the right direction if you want to set up your own sign. Just don't let Clint on ArsTechnica know your IP address. He'll post it on /.

    For the sign, I'm using a Pro Lite PL-M2014R. It's connected with an RJ11 cable that I spliced a DB9 connector on. I'm running a bit of Python which opens the port and writes the information to the sign. All the information you need is available at: http://wls.wwco.com/ledsigns/prolite/

    --
    -- Mark Lyon http://www.marklyon.org
  33. MOD PARENT UP! by ArmpitMan · · Score: 5, Informative

    From the webpage itself, now that it's back up: "Someone thought it'd be cute to link to me, which isn't a good idea with the 10 user version of IIS. Sorry for the 403.9's." Want to DDOS someone? Just pretend to be them and submit their webpage to Slashdot!

  34. Why approve this submission? Idiot editors! by Monoman · · Score: 5, Insightful

    This was an AC post calling for control of a piece of hardware. How do we know the AC is even the real owner of the sign? Even if it is real, the sign probably crashed under the load just from /. subscribers (all 3 of them :-) ) before it was posted for the public.

    Over the years I have had quite a few submissions rejected and then the editors publish something like this. eeedeeeeots!

    --
    Keep the Classic Slashdot.
    1. Re:Why approve this submission? Idiot editors! by marklyon · · Score: 3, Interesting

      Well, the AC wasn't the hardware owner, I am. AC was someone messing with me, probably a goon from SA or Ars, where I did post the link. They cut and pasted my test from the SA post.

      I am confounded as to why they chose to post this, though. Especially since I've submitted many, much better, story ideas only to see them quickly rejected.

      It's not technically exceptional, or even really cool to hook a device up to the internet these days. I managed to get my sign up and running in about 10 minutes. Sure, a little fooling around on an internet message board is cool and all, but that's not worthy of /. Why did they accept this submission? What does this say about the quality of the editors?

      --
      -- Mark Lyon http://www.marklyon.org
    2. Re:Why approve this submission? Idiot editors! by grazzy · · Score: 3, Interesting

      Considering you DID post it to both ars and sa i'd say you're not that innocent.

  35. Re:Where to get a LED sign? by marklyon · · Score: 3, Informative

    I bought the one that's being pounded on through Ebay. I'd recommend NOT buying the Beta Brite. Get the Pro Lite instead.

    The Pro Lite has many advanced features and an open protocol that you won't get if use buy a Beta Brite.

    The sign runs off of 9v, so it could easily be wired to work in your car. A little bit of work on a controller and you could probably create a simple pre-programmed series of messages accessible by button press in the front.

    --
    -- Mark Lyon http://www.marklyon.org
  36. Re:Chance? by marklyon · · Score: 3, Interesting

    I'm also submitting back my windows source so that non-linux users can also control their signs.

    --
    -- Mark Lyon http://www.marklyon.org
  37. Re:No such thing... by plover · · Score: 3, Funny
    Thanks, Cliff!

    I can just hear him now: "Uhh, the ancient Sumerians used to connect their teletypes together with DB-25P terminated cables wired in a null modem fashion. They found that if they crossed DTR to DCD and RTS to CTS that they could emulate the behavior of DCE modem equipment without actually having a modem present. Can I get another beer here?"

    --
    John
  38. Want to see it in action? Pics! by marklyon · · Score: 3, Informative

    You can go here to see some shots of the sign in action.

    --
    -- Mark Lyon http://www.marklyon.org