Waveshare 13.3 inch ePaper - how setup?

[SandrRu]

i have Waveshare 13.3 inch ePaper with RPI Hat
i try Test example and it work
But i cant get working ePiframe
in config i set:
display=epd13in3k

in log lokks like all good:
2024-04-23 01:52:52 : Getting next photo... 2024-04-23 01:52:53 : Success! 2024-04-23 01:52:53 : Processing the photo... 2024-04-23 01:52:57 : Success! 2024-04-23 01:52:57 : Sending to display... 2024-04-23 01:52:59 : Done in 00:00:11

But on display nothing changes

In Example from Waveshare i need set
VCOM value on the FPC
in my case it -2.27
sudo ./epd -2.27 0
in console:

sudo ./epd -2.27 0
//
bcm2835 init success !!!
//
VCOM value:2270
Display mode:0
Panel(W,H) = (1600,1200)
Memory Address = 119F00
FW Version = SWv_0.1.
LUT Version = M641
VCOM = -2.27V
A2 Mode:4
Start to demostrate 4bpp palette example
Write and Show 4bp occupy 10.705268 second
Set image Rotate 0
mirror image x:none, y:none
Set image Rotate 0
mirror image x:none, y:none

maybe there is problem ?

[SandrRu]

I check - Correct display class for my Display is epd13in3b
But with this module i get error:
Error sending photo to display: display() missing 1 required positional argument: 'ryimage'

[SandrRu]

Any news?
Can I help?
Maybe give you ssh access to my RPi?

[MikeGawi]

Sorry for the late response but I ordered this display but unfortunately my retailer won't deliver it any time soon.

I definitely need your help with this.
AFAIK this screen is red-black-white, right?
So can you try setting this in your ePiframe config to BW+Red, then restart with sudo systemctl restart ePiframe.service and let me know if it worked?

[SandrRu]

Thank you for fast answer...
But my display is Black / White, 16 Grey Scales this

[MikeGawi]

Strange, as the Waveshare code for this display here expects red image ryimage what is the cause of this error.

Can you try setting this BW+Red flag anyway and let me know? Maybe a different Waveshare class is needed here?

[SandrRu]

Can you try setting this BW+Red flag

mimeType                                               image/jpeg
filename                                               lena02.jpg
creationTime                                 2024-04-22T21:16:58Z
width                                                        1200
height                                                       1600
source                                              Google Photos
Name: 1, dtype: object
2024-05-03 21:08:57 : Getting next photo...
2024-05-03 21:08:58 : Success!
2024-05-03 21:08:58 : Processing the photo...
2024-05-03 21:09:00 : Success!
2024-05-03 21:09:00 : Sending to display...
2024-05-03 21:09:03 : Done in 00:00:13

But nothing changes on the screen....

[MikeGawi]

I think this is an issue with the correct class for your display. Let's wait for Waveshare to respond here:
waveshareteam/e-Paper#338

[SandrRu]

Waveshare does not respond.
I search any information about Python examples.
No one...

But examples on C is work fine.
It's is possible work ePiframe with display controller IT8951 via C ?