Animator is a device, rather 5 × 16 matrix LED , which are used to display simple animation. Initially, the device serves to something completely different and it was controlled directly from the parallel port for the program is written in Pascal. The idea has proved to be a bit pointless because the program does not provide an even faster refresh rate.
LPT port had been already occupied by an LCD display 2 x 16, so I built an adapter into a serial port (for uprocesorze AT90S2313) and wrote the software.
For more detail: Led Animation Circuit with PC Connectivity using AT90S2313 microcontroller