Comments (6)
I don't have an epd2in9v2, so this is currently untested, but I took a stab at porting the waveshare driver over.
You can try it out here: https://github.com/mcarr823/PaperTTY/tree/epd2in9v2
from papertty.
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@Uri0533 I think it probably can be made to run faster, but it's hard to say without a device to test with.
Right now the code is written more or less the same as the code from Waveshare with only minor modifications.
To potentially make it faster I'd start by tinkering with the display_partial function.
eg. Seeing if it works if the LUT is loaded only once instead of every time, or seeing if set_memory_area and set_memory_pointer can be changed to allow for partial writes.
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Actually, it might just be the panel.
https://www.waveshare.com/wiki/Pico-ePaper-2.13
https://www.waveshare.com/wiki/Pico-ePaper-2.9
The 2.13 is listed as Partial refresh time: 0.3s
The 2.9 is listed as Partial refresh time: 0.6s
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Interesting that the code for the epd2in13v4 works on the epd2in9v2 at all.
I guess the code is fairly similar. The main difference is the LUT loading.
You could try commenting out the calls to set_lut and see if it makes a difference.
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Related Issues (20)
- Screen has strange looking streaks HOT 3
- 7in5_V2 unusable slow? HOT 3
- No read access to /dev/vcsa1 - maybe run with sudo HOT 3
- PaperTTY on mac/osx HOT 1
- Updates are received in VNC mode only if other VNC client is connected to server HOT 1
- Optimizing refresh rate on 7.8'' Waveshare e-ink HOT 24
- What's the optimal settings for 6"HD? HOT 7
- Starting Up at Boot HOT 15
- Last known 'good' version of Raspbian OS for PaperTTY - and help in updating the install guide? HOT 24
- PaperTTY on Laptops with an IT8951 controller HOT 9
- Getting error init() got an unexpected keyword argument 'vcom' when trying to run PaperTTY HOT 1
- EPD2in13v4 and moving in line with waveshare reccommendations HOT 6
- Is it possible to use it with a 13.3" monochrom e-Paper Display
- 3.7” display support
- Support for EPD7in5v_v2 HOT 2
- Issue with framebuffer display HOT 1
- ModuleNotFoundError when following poetry install HOT 1
- Completely non functional with 2in13V2 and Pi Zero W HOT 5
- Display doesn't update properly unless --invert HOT 2
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