In SX Microcontrollers, SX/B Compiler and SX-Key Tool, tdg8934 wrote:

Look at the bottom of the page at this [URL="<a target="_blank" href='http://www.ledigital.net/index_sub.html"]link[/URL'>http://www.ledigital.net/index_sub.html"]link[/URL</A>].

You will see a Full Color LED Display controller for the PC that controls this card. I am trying to interface directly with these modules so that we can bypass or perhaps come up with a similar PC card that is controlled with a micro-controller like the Parallax SX28 or SX48. 

This installation manual [URL="<a target="_blank" href='http://www.ledigital.net/Absen%20Installation%20manual.pdf"]link[/URL'>http://www.ledigital.net/Absen%20Installation%20manual.pdf"]link[/URL</A>] should provide more detail about how these modules work. On page 17 of 26, it shows a "Receiving Card" that all of these modules plug into which then goes to the Full Color LED Display Controller - once in the PC. 

So this proves that only the pins on the input and output jacks are used and it can perform full color (WHICH MUST MEAN IT CAN DO "PWM" OF SOME SORT to get 36 Bit color resolution).

I am working on this as a test to see their capability with a micro-controller. I beleive PWM is possible after reading though all the SPECs and Data. 

The only signals on each module are as follows:

R1A, R1B, R2A, R2B, G1, G2, B1, B2, CLK, LATCH, /OE, GND.

Somehow from these connections, PWM has to be possible. 

Comments?

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