Add support for TFT display ST7796S

[morganrallen]

Describe the problem you have/What new integration you would like

Add support for the TFT display ST7796S

Please describe your use case for this integration and alternatives you've tried:

First attempts at using the ST7789V display driver didn't work and two things of note came up.

• This (all?) display drivers require a reset pin, but in some cases (TTGO-T-WATCH) this isn't wired up, maybe as is usually the case in the ESP-IDF, accept -1 to mean not in use
• Display drivers seem to hard code dimensions, making this more flexible may help with some of these very similar but not quite displays.

Additional context

[JingleheimerSE]

I would also like to see a ST7789 driver added. This would intergrate well with the Seeed WT32-SC01 board that integrates a 3.5" ST7789S display with an ESP32 for only 20 USD!

https://www.seeedstudio.com/ESP32-Development-board-WT32-SC01-p-4735.html

[richardklingler]

The WT32-SC01 uses the ST7796S and not ST7789...

It is currently being worked on, including FT6336 touch screen chip, but not on the top priority list (o; :

https://github.com/richardklingler/esphome

[morganrallen]

That's great news @richardklingler but unless I'm missing something, I don't see any display drivers in that repo.

[jamser]

That's great @richardklingler but i cloud not open the link you share,cloud you send it to me(esphome.zip), my mail is szzs80@163.com,thank you very much!~

[cpyarger]

And now that repo is gone :/

[kd7gab]

I would really like to be able to utilize the WT32-SC01 units with ESPHome. Has this request simply been abandoned?

[cpyarger]

It seems that @richardklingler has reposted the github repository but is putting the devices he got working behind a sponsor/pay wall.

[cpyarger]

Please post the relevant information prior to closing. What external component, where is the link to the code, documentation, examples, etc.

[nagyrobi]

reopening as requested on Discord

[cpyarger]

Thanks