Paper S3 White background is not (epaper) white with BMP
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Hi everyone,
I'm currently trying to write a BMP image to the screen, but white background isn't reproduced with the bright background one sees in default screens (like the off screen and firmware "dashboard"). I have verified that the background of the BMP is 255,255,255.
I've tested using setEpdMode, from 255 greyscale to B&W, but I can't seem to get the white bgcolor from the MP AND preserving the sharpness of the BMP.
Does anyone know what the trick is to get a crisp picture on the this device? One test is i haven't done yet, though, is setting M5.Display.clear(TFT_WHITE); and write a PNG with transparent background, but not sure of that's the way go. I'm sure I'm missing something?
It looks as if the range used is more like 40-230, with white not as white as it could be on the device and same with black. FYI, I'm aware the device only supports 16 greyscale colors.
Thanks!
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