Pages: [1]   Go Down
Author Topic: any way to get this sign panel to work with an arduino  (Read 875 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Newbie
*
Karma: 0
Posts: 11
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I have an led sign that was made by pollard manufacturing and is a 7x16 dot matrix. I would like to
Run it with an arduino and use the 5821 led drivers and tip107 row transistors
The dots are led clusters of three and run on 9v for a cluster any help with code to drive them and display text would be appreciated
the chips are 26ls36 74ls157 and 5821


* led sign.gif (1200.31 KB, 1949x1201 - viewed 37 times.)
« Last Edit: February 27, 2011, 02:08:05 pm by Devicemodder » Logged

Manchester (England England)
Offline Offline
Brattain Member
*****
Karma: 619
Posts: 33961
Solder is electric glue
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

You need a schematic to see how to wire the arduino up to it. Have you got one?
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 11
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

No I don't have a schematic the sign was surplus
Sorry for the long reply been busy with school
Logged

Phoenix, Arizona USA
Offline Offline
Faraday Member
**
Karma: 40
Posts: 5570
Where's the beer?
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

If it were my sign, I would start by seeing if I could find the manufacturer, or who the manufacturer is -today- and getting in contact with them about the board. A nicely worded email might open up some information. I would also post all the information you could about the sign, including clear front and back pictures - to the Electro-Tech forums (http://www.electro-tech-online.com/datasheets-manuals-parts/); you might find someone who was an old employee who built the sign, or maybe has some docs they could send to you. If neither of those options worked out, I would then take on the task of reverse-engineering the schematic from the PCB; likely it isn't too difficult - much of the schematic would be duplication (likely for a set of columns). I am willing to bet the device is serial-driven in some fashion - once you had the schematic laid out, it would likely be fairly easy to figure out how to interface with it.
Logged

I will not respond to Arduino help PM's from random forum users; if you have such a question, start a new topic thread.

Offline Offline
Newbie
*
Karma: 0
Posts: 11
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Thanks I dont think the company is around any more but I am going to try reverse engineering the sign
Logged

Pages: [1]   Go Up
Jump to: