Time ago a friend asked me if I could develop an hologram mod for his CREATURE. At that moment my controller board was already developed some time ago, this controller board capture status of both pinball matrix, inputs for all switches and outputs for any bumper, flasher, lamps, motor, etc.. I developed my controller board for another mods, even to become an universal controller board to trigger any mod.
In the beginning the idea was to do it with a TABLET 10.1" and an acrylic bracket fixed directly under playfield, so a very compact design, CPU, GPU, screen all in one device, and receive status of matrix, wireless by WIFI or Bluetooth. But finally agreement was to do it with a Raspberry pi 3 and a 13" TFT. The TFT to put directly in the original hologram bracket, or tablet with an acrylic bracket under playfield, so do not need put a big TV on cabinet with a special heavy and expensive bracket.
These are pictures about the controller board , small boards to connect directly to CPU board and some test prototypes (real final version will be with 13" TFT on original Holo bracket or Tablet 10 inches with custom acrylic bracket under playfield), so all work with low level signals from CPU. The controller board capture status of matrix switches (8x8, so 64 switches) and up to 8x10 for outputs (64 outputs in Creature). Data may be transmitted wired by USB or CAN bus, or wireless by WIFI, Bluetooth or 2.4Ghz, all options may be read with Raspberry or Tablet. So only a simple USB cable to connect controller board to RPI/Tablet or no cables for wireless option (WIFI/Bluetooth/2.4Ghz). Also WIFI/Bluetooth may allow config and update firmware/config/videos wireless from cell phone.
My friend agreed about to do it with Raspberry Pi and 13" IPS TFT Screen (IPS high quality, wide angle vision). But may be do it yet with a Tablet, and a custom acrylic bracket under playfield.
About software to play videos, develop in C++ for RPI or Java for Tablet, simply need read status of matrix received and play videos according with a user config stored in SD card, so user may config when play any video according with status of switches, outputs or a combination of several input/outputs, config several videos to same trigger and play it randomly, config timers for triggers with blinker data in short time, etc...
Now I'm a little busy with some custom projects and a new Multicolor DMD for 128x16 pinballs (Hook and similar), but hope soon I will may finish this holo mod for my friend, then if somebody is interested I may prepare a full kit plug and play ready to work. About videos, easy to do with any video editor like Premiere, Pinnacle, Corel, and mix with 2D effects.
I want to make it clear that my product will be 100% original, ALL developed by me, hardware, software and videos, not a copy of another product. And for inform about development, tests, pictures, videos and any other information I will open a new post about it.