Matrix user forums

Flowcode's display devices aka LED seem to be of a common to a fixed power source. It would be nice to have a display matrix or even a LED that can have both anode and cathode free to connect to either a fixed power source or the microcontroller.
Unless I am missing something, it does not seem possible to simulate a LED matrix.

If i understand u correctly you should take a look into this link and thx for sharing
http://www.nerdkits.com/videos/multipanel_spi_ledarray/

cantronicx,
http://www.josepino.com/microcontroller ... ntrol_leds
Is a good place to look, if creating a LED matrix.
This has nothing to do with simulation and your question, but I though worthy of a mention.
With LEDs you can select active high and active low, then if connected to i/p will be off.
When I get a bit of time I will see if a matrix can be simulated with flowcode.
Will let you know for sure tonight


singhdeolink,
Link you posted for a SPI application is a great idea!
It does not just have to be slave chips with matrix LEDs, but slave chips controlling multiple LCD's, Etc.
I believe SPI control would make a great article. Thanks for sharing that link.

Simulating an LED matrix in Flowcode is currently impossible. But it is a good idea and is something we will look at allowing in the future.

I was going post that in order to simulate a matrix, you will need to assign both anode and cathode of each to individual pins. At present they have VSS or VDD as a fixed reference therefore it can't be done....
But you beet me to it Steve

to be more specific on my project, I have made a simple circuit that uses an Atmel microcontroller. I think a pic will do this just fine also but not sure it can handle the current as a source without using some additional circuitry like transistors or some driver.
The circuit is as follows

Going to move this topic as we are trying to use this forum purely for completed articles. Thanks.