Freetronics DMD – updated library

I recently got two Dot Matrix Displays from Freetronics –
They are 32×16 LED panels that can be daisychained via SPI.
It came with a quick library which worked okay but could do with a few enhancements ๐Ÿ˜‰
My modified library supports multiple displays (tested with 2×1 and 1×2 layout – but should work with other layouts)
It also supports multiple fonts, marquee text, scrolling the display around and grayscale (grayscale sort of works – but not well ๐Ÿ™ )
I have updated the examples included in the original library to use these new functions.

The library can be downloaded from
See freetronics forum for my DMD library
[youtube_sc url=”5DLmWrpV-3M”]


I’ve had this blog sitting here blank for a fair while now and so I figured it is about time I did something with it.

I work in Sun as a backline OS engineer and have a major interest in Linux along with Solaris.

I’ve recently got into electronics and am in the progress of making a Arduino controlled lighting box and also am designing my own little robot.

In this blog I’ll attempt to document the lighting box and whatever else I get around to making.

I also have a habit of writing lots of little scripts/fixes so I’ll post them here as well anything else that comes to mind

Here’s hoping I actually remember to do any of this ๐Ÿ™‚