[simpits-tech] Solid-state LED matrix help

[Jim Sturcbecher]

Yes, an Arduino or any small microcontroller would work. You
use a process called "bit-banging". (No this is not any reference
to chance adult encounters in the night). Anyone who does micro
programming on this list should be able to help. Unfortunately,
I am heavily involved with another project at the moment and don't
have any spare time.

Oh yes, you need to find the pinouts of the display. Given the
choice, I would probably use the Arduino.

Good luck,
Jim.

-----Original Message-----
From: simpits-tech-bounces at simpits.org
[mailto:simpits-tech-bounces at simpits.org] On Behalf Of dabigboy at cox.net
Sent: 19 July 2011 06:37
To: simpits-tech at simpits.org
Subject: [simpits-tech] Solid-state LED matrix help

Just wondering if anyone could offer some advice here. I scored an old
Apollo 612b Loran a while back, to build into a generic GPS for X-Plane
(since I can't see spending $5k+ on a nice KLN-94 to interface directly,
though that would be awesome...) Handily, the dual-concentric rotary
encoder, push buttons, LED matrix panels, and LED annunciators are all on
their own easily-detached panel. Interfacing the encoder, buttons, and
annuciators should be fairly straighforward, but I'm stuck on the
solid-state LED matrices.

This seems to be what I have:
http://www.decadecounter.com/vta/articleview.php?item=750

Specifically, mine is the QDSP-2007. Unfortunately I have pretty much zero
experience when it comes to making microcontrollers and writing assembly
code, but it sounds like this may be fairly straightforward (if a bit
tedious to actually use) for someone with a little more experience to wire
up.

Does anyone know of an existing microcontroller card of some sort that would
talk to this little guy? Is it something an Arduino might be able to drive
without any special intermediary circuits (just using the data pins)?

If anyone could offer advice or just point me in the right direction, I
would appreciate it. My next plan is to hack one of those little 1.5"
keychain photo frames (already found a solution for this that will probably
work OK) and put it in place of the matrices, but they sure do have a cool
retro appeal. Even if I stick with the 1.5" photo frame, it would be nice to
use the LED matrices somewhere else.

Thanks!

Matt
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Thanks!