5.83" e-paper does not show grayscale #52
Description
Hi! I haven't been able to display grayscale levels on the 5.83-inch EPD. I ran the following program (a modified version of the repository example), but I only see black and white.
`/*This is a 4-color electronic ink screen, which can only display 4 colors.
Here is the 4 colors you can display:
1.TFT_GRAY_0 black
2.TFT_GRAY_1 |
3.TFT_GRAY_2 |
4.TFT_GRAY_3 white
*/
#include "TFT_eSPI.h"
//#include "image.h"
#ifdef EPAPER_ENABLE // Only compile this code if the EPAPER_ENABLE is defined in User_Setup.h
EPaper epaper;
#endif
void setup()
{
#ifdef EPAPER_ENABLE
epaper.begin();
epaper.fillScreen(TFT_WHITE);
epaper.update(); // update the display
epaper.initGrayMode(GRAY_LEVEL4);
epaper.fillRect(0, 0, epaper.width(), epaper.height() / 4, TFT_GRAY_0);
epaper.fillRect(0, epaper.height() * 1 / 4, epaper.width(), epaper.height() / 4, TFT_GRAY_1);
epaper.fillRect(0, epaper.height() * 2 / 4, epaper.width(), epaper.height() / 4, TFT_GRAY_2);
epaper.fillRect(0, epaper.height() * 3 / 4, epaper.width(), epaper.height() / 4, TFT_GRAY_3);
epaper.update();
//epaper.fillScreen(TFT_GRAY_3);
//epaper.pushImage(0, 0, 800, 480, (uint16_t *)L4_GRAY);
epaper.update();
#endif
}
void loop()
{
// put your main code here, to run repeatedly:
}`
When running the same example on a 7.5-inch screen, it displays correctly (I updated driver.h to match the screen type). I just re-downloaded the library, but the problem persists.
Thankfully,
Ernesto.
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