Weird Looking: it's saying hi

it’s saying hi

September 1, 2008 12:17am (7 years, 5 months and 1 week ago)
tags: led sign
Is that an LED sign on my desk?  I believe it is.

It’s a FavoTech model I picked up on eBay that can be programmed by ethernet, USB, serial and IR.  My weekend project has been reverse engineering enough of its network protocol to control it programatically.  The protocol is all binary stuff over UDP, but I’ve made quite a bit of progress in deciphering it.

It’s not all mai tais and yahtzee, though.  I somehow broke the sign so that when it first boots up, it spams the network with constant ARP packets until I’ve uploaded a playlist.  I think it’s because I removed the playlist on the flash drive, but I haven’t figured out how to get one back on there yet.  Against all reason, it’s apparently not “select the flash drive then upload a playlist”.

I know it has a speaker, because it’s forever beeping when it resets.  I just haven’t figured out any message I can send it to make it beep on cue.  I emailed their tech support but haven’t heard back yet.

I’m not even being original here – one of my co-workers has a nearly identical LED sign that used to stream news feeds and OA scores in our office.

It’s pretty fun, though.  And I think there’s a lot of neat information you could convey in sign form.  The only limit is my imagination!  Oh, hell.


Sep 4, 2008 10:15am
Hey there, I liked your favotech sign story - its even fairly recent too! I got one as well.

I was wondering if we could share notes about programming for it? My ultimate goal is to stream some rss feeds, and rcon scores from a CoD4 Server - should be great fun!

I’ve been posting about it here: which talks about me trying to get it to work via udp and ethernet. I just can’t find the darned port to ping/send data too! besides that though, I think I’ve wrote enough documentation and other pieces to get it working quickly, once I can actually talk to it.

What plans do you have for doing with your sign?

There is definately something in seeing text on it though - i’ve been sending messages via the sigma software for the moment, and it’s been fun.
Sep 5, 2008 8:14am
Yeah, it’s pretty fun.  Sort of like an old tech thing, except that it has ethernet and USB so it’s not really old.

update post.
Sep 18, 2008 12:42pm
I have fallen for the favotech promise of Ethernet communication as well.  I am trying to send a simple message through VB.Net to the sign using UDP and TCP/IP along with their protocol.  But I too can’t seem to get to connect.  Keep me posted if you will of any progress.

Sep 18, 2008 12:45pm
Just thought you might enjoy this read from their support staff…

From: Favo LLC (noemailsuntilifigureitout)]
Sent: Thursday, September 18, 2008 10:48 AM
To: Jason Rettinghaus
Cc: (noemailsuntilifigureitout)
Subject: Re: Please help.


I’m sorry if there is any confusion.  We are not programmers so I can’t walk you through how to use the document.  We don’t have any sample code or anything.  All we know is that our customers use the protocol succsefully and have gotten this working properly but it sounds like you’re not sending the right UDP packets.

Our only experience is with programming the sign using our Sigma Editor software.

On Thu, Sep 18, 2008 at 6:48 AM, Jason Rettinghaus (noemailsuntilifigureitout)> wrote:
How do I use the information listed on your support document “Protocol Specs for LED Signs”?  I have found a sample project online that is passing UDP to a specified IP and port number.  But when I plug in the IP and Port number that I am using on your manual entry software, it doesn’t pass anything to the sign?  Even if I follow the codes on the document mentioned.  Can I please have an example of how to make this work?
Jason Rettinghaus

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