Here is a Quicktime Movie of the POS Display with iTunes. It shows some of the features of the script. It also reveals some of the limitations of the Display:
Even with these limitations, it serves its purpose well, and it was cheap compared to a normal serial VFD.
I recently managed to get my EMAX POS pole to display my current iTunes Tracks. I will post a video soon. It uses a simple AEDEX command set.
Here is a link to the code: AEDEX iTunes Code
Make sure to save it as an application and select "Keep running." Then put it in your iTunes Scripts folder.
Requires a working serial port (edit the script to specify which) and: SerialPort X 1.0 OSAX
My EMAX POS pole displayed arrived the other day and the VFD is huge! The spec sheet says it is 15 x 4 cm - much larger than I imagined. It is a parallel Samsung VFD, which connects to a board that translates the RS232 and AEDEX protocol used in some cash registers. There is not serial interface on the VFD unfortunately.
The protocol was very simple to figure out, and after some cable modifications, I got it running using Zterm. Now I am going to start trying to get the LCD Kit to work directly on the VFD, without the other board. I'll keep everyone posted.