MI0283Qt needs delay()

hi,

it took me a lot of time to find out that the display MI0283Qt needs some delays after painting.

If consecutive commands CMD_LCD_DRAWLINEFG, followed by the necessary parameters, are sent to the display without sufficient delay between the commands then the result of painting is not predictable!

I am still testing to find out the necessary amount of delay.

The documentation of the library does not contain any note about this!