Build error on EspHome 10.6 (and probably earlier)

[ZogKarndon]

I'm trying to build an e-ink dashboard, but when I build the YAML, I get an error: AttributeError: module 'esphome.components.display' has no attribute 'DisplayBufferRef'

I did some googling, and this seems to be a problem across the various ESPHome lilygo display drivers, and nobody has merged the fix yet.

Who should I follow up with to resolve this? I'd really like to get this started...

Thanks, Eric

[kotope]

Hi! You're absolutely right, this won't compile properly with the latest ESPHome. (I haven't updated my e-ink display for ages).

I'll try to look into this soon to see if I can find a replacement lib or make a fork and fix it on my own.

[kotope]

T547 library changed to made it compile with 2023.11.0 ESPHome.

[ZogKarndon]

I picked up your changes, and I no longer get errors about the display component, but I do still get errors about the time component:

Compiling .pioenvs/eink-dashboard/src/main.cpp.o
/config/esphome/eink-dashboard.yaml: In lambda function:
/config/esphome/eink-dashboard.yaml:350:24: error: 'esphome::time::ESPTime' has not been declared
         auto t = time::ESPTime::from_c_tm(&tp, c_t);
                        ^~~~~~~
/config/esphome/eink-dashboard.yaml:448:29: error: 'esphome::time::ESPTime' has not been declared
             auto dt = time::ESPTime::from_c_tm(&timeParsed, c_time);

I did some searching, and I couldn't find a reference to ESPTime on the web (as such).

[kotope]

I picked up your changes, and I no longer get errors about the display component, but I do still get errors about the time component:

Compiling .pioenvs/eink-dashboard/src/main.cpp.o
/config/esphome/eink-dashboard.yaml: In lambda function:
/config/esphome/eink-dashboard.yaml:350:24: error: 'esphome::time::ESPTime' has not been declared
         auto t = time::ESPTime::from_c_tm(&tp, c_t);
                        ^~~~~~~
/config/esphome/eink-dashboard.yaml:448:29: error: 'esphome::time::ESPTime' has not been declared
             auto dt = time::ESPTime::from_c_tm(&timeParsed, c_time);

I did some searching, and I couldn't find a reference to ESPTime on the web (as such).

Do you have any own changes in the code? I double checked and there's no 'time::' anymore in my code. If you have it on yours, remove the time:: prior the ESPTime::

(The namespace of ESPTime has changed in the ESPHome)

[ZogKarndon]

Man, I stared at those lines in your version, and just didn't notice the difference.

So, everything compiles now, but when I try to upload it to my LilyGo Screen-4.7-S3, the LilyGo goes into a boot loop. I recovered by pressing the STR_IO0 button while resetting, but that doesn't help me get the LilyGo going :)

Any ideas where to start? I'm a novice at embedded debugging....

[ZogKarndon]

A good part of the problem is that LilyGo completely revamped the IO mappings on their latest iteration of the card, so if you buy a LilyGo T5-4.7 today, you won't be able to use this ESPHome configuration at all.

I'm futzing around with the specs, and if I can manage to get this to work, I'll send a pull request. Either that, or I'll fork the repo (as my sensors don't match yours, unsurprisingly)