LCD Dot matrix with Toshiba T7932 and T7933 / HD44102

[ObligedTester]

Hi!

I have this really nice LCD module that i pulled out of a old POS-terminal.
Could not find much on that particular module, however the controller consists of 3x T7932 chips, and one T7933 chip.
I take a shot in the dark and hope that this may be some "standard" already compatible with another driver?

What do you think? Datasheets: https://www.alldatasheet.com/datasheet-pdf/pdf/31153/TOSHIBA/T7932.html & https://pdf1.alldatasheet.com/datasheet-pdf/view/31154/TOSHIBA/T7933.html

Also, if you have a teory that it might be compatible with some other library, i will be happy to test it out

[ObligedTester]

Hello again,

I found this: https://forum.arduino.cc/t/openglcd-hd44102-to-t7932/413755
So it seems that would be a good starting point, does U8g2 have a driver for HD44102 or equivalent?

[olikraus]

Hmmm... never heard about hd44102 LCD. It is not supported :-(

[olikraus]

I will try to buy and add support for such a display with HD44102, but it might take 2-3 months (such displays are not easy to get...)

[ObligedTester]

That's great!
However, this week i will receive a FPC adapter for my module T7932/T7933.
I'm no LCD-expert, but with a little assistance I will be more than happy to try and help out.
Do you have any hunch on if there is a "base" module that might be good to use that is in the library right now when looking at the datasheet?

[olikraus]

Maybe the ks0108 could be a starting point.

[ObligedTester]

Thank you!

Will give that a shot when I get my adapter and report back!

[olikraus]

Some progress here. I might get a LM324 display with the HD44102 controller.

[ObligedTester]

Hi Oli!
Thank you very much for this update.
In the last days I have received my FPC-adapterboard, that will make it possible to hook everything up to a breadboard without modifying anything. I will be happy to help with any sort of debugging that might be needed. Just let me know.

Will be documenting the pinout for this LCD also to aid anyone else that might stumble on them. They are very nice

[olikraus]

Great. It will probably take some more days until I receive the display itself.

[olikraus]

I recently got access to the display. After wiring with my Arduino it seems to work. U8g2 software development not yet started, I just wanted to see whether the adapter board works.