Hey there! 

I am trying to make use of an old custumer display which is POSIFLEX PD-2800\320. It uses unnamed matrix which is 20x2 symbols in size and 100x14 pixels in control.

This display does have a DIP-switch with 7 different control modes. I was able to make it work with my python script only in Noritake Control mode so here I am. Despite being able to send some data to the display I still am not able to properly control it using the ESC sequences. I was trying to use these commands [link] from the official website however it never worked properly. 

I was wondering maybe there is another set of command to control the display (brightness, line, symbol number, clear the display)? The display is connected via USB to a Rapberry Pi 3B which runs the python script.

The commands are being set via

>>>s.write(b'\x1B\x5B\x32\x4A') #example

I would appreciate any help regarding this matter.

Hello Michael,

Thank you for your inquriy.
Based on the information you provided, the POSIFLEX #PD-2800\320 (POS terminal display) appears to use a custom controller board and firmware developped by POSIFLEX. While it is possible that POSIFLEX may have sourced a display module from us, the final product - including the 7-position DIP-switch configration and supported ESC command set - is entirely designed and controlled by POSIFLEX. So the command set and control behavior may differ from the standard Noritake VFD command specifications.

Because of this, we unfortunately do not have documentation or technical details for the command set, brightness control, screen clearing, or other functions used in this POSIFLEX model.

For accurate information, we recommend referring to POSIFLEX’s documentation or contacting their technical support team directly, as they would have the correct specifications for this product.

If you have questions about Noritake‑branded VFD modules or our standard command sets, we would be happy to assist. Please feel free to reach our local sales & technical support through our web contact form. Once submitted, your inquiry will be automatically forwarded to the appropriate local team for follow-up.