by

|   Jul 31, 2008 at 12:06am

do you have an eagle library for this LED Matrix

by

|   Oct  6, 2008 at  5:46pm

Does anybody know where I can find a pin diagram for this? I've found a couple PDFs online, but none that I can read without getting a language pack, that my computer seems to find incompatible.

by

|   Nov 11, 2008 at  5:03pm

just like these guys can some one save me the frustration and help a brother out with some pinouts.. or at least a simple explanation ? ..

thanks
--dick

by

|   Nov 14, 2008 at  9:45am

Wow! Sorry about that. Datasheet is now updated to a much more readable, friendly PDF.

by

|   May  3, 2009 at  5:37pm

Unlike the large RGB matrix, this one doesn't have markings/notches on the sides of the package. What is the best way to determine the pin numbers on the 8x8 dual color (small) matrix?

by

|   May  5, 2009 at  6:34pm

Is there a tutorial for getting these working (or something close).

I also agree with John. Difficult to figure out which pin is pin one. Don't seem to be any markings on the unit to indicate 'top' or 'pin 1' or other useful type designation.

by

|   May 31, 2009 at  1:43pm

Note that the latest batch (5/2009) of these displays, marked only with a "YS" stamp, are significantly dimmer than the previous batch. The previous batch had a part number that resembled the data sheet. Do not expect to be able to mix parts from these different batches! The pinouts and footprint is the same, but the brightness will not match.

by

|   Aug  6, 2009 at  2:29am

Much better when the batch was from Kingbright. This seems to be less in quality.

by

|   Aug 24, 2009 at 11:45pm

I am uncertain if this is product is still a mystery due to the lack of pinout information present in the datasheet. Even after searching, I couldn't find much information on this.

I spent some time tinkering with it and I think I've figured out the pinout. I am uncertain if the "YS" stamp is present on the same side of all of the modules (or if they are stamped randomly).

On mine, pin one was present on the left-most pin when looking at the side with "YS" stamp (see picture):
http://retfie.com/front.jpg

I also took a picture of the underside to locate pin one based upon the PCB.
When looking at the PCB text (underneath the epoxy coating), pin one is located bottom left (see picture):
http://retfie.com/bottom.jpg

If someone could confirm this is the case for all modules, it might help others, I think.
-Omar

by

|   Aug 24, 2009 at 11:49pm

Oops. Made a typo:

"When looking at the PCB text (underneath the epoxy coating), pin one is located bottom left"

This should read "bottom right".

by

|   Sep  4, 2009 at  7:54am

I can't seem to find out how this matrix works. Is there atleast a small tutorial for it? Like for how to use the pins?

by

|   Feb 15, 2010 at  5:31pm

I found Pin 1 using this technique. The chip has 12 pins on each side and pins run parallel with the rows.

I setup a test circuit with a 5V supply and 220 Ohm resistor.

I oriented the chip so one row of pins runs along the bottom. Counting left to right, attach 5V and resistor to what could be the actual Pin 1 on the chip (call it "candidate" pin 1) and GND to "candidate" pin 3. This should turn on the red LED (see Note below) at row 5, col 5. If this is the case, then 5V is connected to the actual Pin 1 on the chip and GND is connected to actual Pin 3.

If nothing lights then swap the connections so that GND is connected to "candidate" pin 1 and 5V is connected to "candidate" pin 3. This should turn on the red LED (see Note below) at row 5 col 5 based on the current orientation of the chip. If this is the case, then GND is connected to the actual Pin 13 on the chip and 5V is connected to Pin 15. This also means that you are actually lighting Row 4 Col 4 because the chip is upside down based on the schematic.

Once I identified the pins, I wrote on the side to mark them.

Note: As best as I can tell, the schematic on the data sheet is not correct. In my experience, red and green were reversed.

by

|   Mar  9, 2010 at  9:14am

This is a cool part but guys, we really need the Eagle Lib for that! Can you see these lot of comments requesting for it???

Also i agree that previous batch from Kingbright was farly more bright and with more quality than this from YS... I strongly suggest to go back to Kingbright series, even if it is more expensive than the YS model.

by

|   Mar 24, 2010 at  4:01pm

How much power is required to run these things? More precisely, how much is required for 24 of these to run at once?

by

|   Apr  2, 2010 at  6:37am

I've made a Eagle library for the medium one of these so I've added this one to the library too.

You can find it here: http://insidegadgets.wordpress.com/eagle-libraries/

Please do a 1:1 print out to confirm, I followed the data sheet so let me know if the pins are actually for the correct red/green lights.

by

|   Apr 23, 2010 at  4:01am

Can anyone tell me if there is a serial interface backpack for these small LED arrays?

The backpack for the large LED array looks fine (COM-00759), but are they available for these small ones? Thanks

by

|   Jun  5, 2010 at 11:58am

it is very simple to use one of these with arduino, I have written a short tutorial, located inside http://bit.ly/am6iAx