LED Matrix Output

SimVimX supports using the MAX7219 driver to drive up to 64 LEDs, but this can be more complex for the user since all the LEDs in your panel need to be connected in a matrix of 8 rows and 8 columns. The MAX7219 is the same driver used for 7-segment displays with 8 characters and 64 segments, but in the case of 64 LEDs, a lot of wiring is required.

It is not "Serial LED output" - all diodes are connected as matrix or "grid". To make using LEDs with MAX7219 easier, you can buy one of the MAX7219 dot matrix module (example link), which also is very convenient for testing purposes because it has detachable LED dot-matrix module. To test all your assigned annunciators you can use this dot matrix and then detach it and connect two rows of wires (anodes, cathodes) that go to your LEDs connected as matrix grid.

Configuration

First, you need to "connect" the Matrix Max7219 driver in the plugin configuration window, either to pins #30-37 or to one the Output MUX pin, selecting the "LED MATRIX" extension type

Then you can assign LEDs and datarefs for them as usual.

Brightness Control

If you need to control the LEDs brightness, link the assigned LED matrix module with one of the brightness knob in the configurator, just like for 7-segment indicators with software-controlled brightness.