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waveshareteam / e-Paper

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7.5 V2 missing demo code for partial refresh, lettering, lines etc #125

Closed JaredReabow closed 3 years ago

JaredReabow commented 3 years ago

the 2.3 display has a comprehensive demo code for using th edisplay, however the 7.5 v2 display only has a display image demo, can you please include a demo for partial refresh and writing words etc

SSYYL commented 3 years ago

Hi,

The 7.5 V2 don't have partial refresh. As a rule, large screens don't have this feature. (use SPI)

missionfloyd commented 3 years ago

https://github.com/waveshare/e-Paper/blob/e51fcad44477743ee1f07a04900763e0e67d1366/RaspberryPi_JetsonNano/python/examples/epd_2in13_V2_test.py#L31-L46 This works with other displays as well. See also https://pillow.readthedocs.io/en/stable/reference/ImageDraw.html