I use a library from Adafruit and have the following problem.
Display is ILI9163 serial.(160 x 128)
The numbers on the screen draws fine but the update redraws over the previous line without clearing the previous line.
The only way I could find was to draw a small rectangle over the numbers the same color as the back ground,but this cause a small flicker.
I also tried the tft.drawString(" " ) but this does not clear the line of number.
When I use tft.drawString("123 123") the 123 draws over my numbers without clearing the previous
characters and the spaces does nothing.
Please help I am missing something.