Yes I'm sure this has been discussed before ...
I know that color2dmd exists, ultradmd exists, etc, etc.
What I actually am doing are two different idea's.
The first idea is to have a simple wireless topper with a dmd display to display the machines top scores and entertaining animation/advertisement.
A phone app or bluetooth will upload the message line 1 & 2 or animation file display and the topper will display it.
Image going to your pinball tourneys and the tourney machine has a topper displaying high scores, tourney rules, player information or just sponsor ads.
The device would be self contained and sit on top of the pinball backglass. Laptop power feed or battery feed to the unit. When the tourney is over upload what every display or high scores you want.
The 2nd part is to enable the homebrew builder to add an inexpensive RGB DMD display to their home brew pinball machine.
For me I intend to play arround with P3 and P4 32 x 64 RGB LED's and see what I come up with.
Sure I could do the same with 32 x 32 and other assortments, but this is a continuation of my journey in learning how this stuff works.
Today, these component are used to build outboard billboard signs and store signs. They are cascaded together to make a large screen picture.
The pitch or space between the led's denotes the P number. So P3 is 3 mm's spacing, P4 is 4 mm's spacing between LED.
A number of libraries exist for the arduino and other board types to power these components and example sketches demonstrate the capabilities.
Be warned my journey will allow me to do simple and basic manipulations to aid in the scoring and simple animations of the device.
Color2dmd and ultrdmd, and other products are more mature products and offer better plug an play capability.
For me I just want to learn (the hard way) how this stuff works and apply it to my own home brew pinball creation.
I will share with you my journey and share arduino code, connection schematics, successes and failures.
As usual I will also invite input from the Zen masters here at Pinside to help give me sanity checks along the way.
Come along for the ride if interested.