Buffer example has wrong orientation

[DedFishy]

Hello again. There seems to be an issue regarding the FrameBuffer example, where it's rendered in portrait as opposed to landscape, which is how most screens are oriented. Is there a way to get around this problem?

[boochow]

@SuperBoyne use tft.rotation(2) to change the screen orientation.

[DedFishy]

I noticed that method, but when I use that it seemed to just cause the screen to either go completely black or just stay how it was, depending on where I called it in the code.

[boochow]

@SuperBoyne this code works for me.

from machine import SPI,Pin
from ST7735 import TFT
spi = SPI(0, baudrate=20000000, polarity=0, phase=0, sck=Pin(2), mosi=Pin(3), miso=Pin(0))
tft=TFT(spi,4,5,1)
tft.initr()
tft.rgb(True)
tft.rotation(2)
tft.fill(TFT.BLACK)

from framebuf import FrameBuffer, RGB565
buf = bytearray(128*160*2)
fb = FrameBuffer(buf, 128, 160, RGB565)

tft._setwindowloc((0,0),(127,159))

size=20
h_size=10
(xmax, ymax) = (128-size, 160-size)
(x, y) = (size, size)
(vx, vy) = (1, 1)

while True:
    fb.fill(0)
    fb.ellipse(x, y, size, size, 0xffff, True)
    fb.ellipse(x - h_size, y - h_size, h_size, h_size, 0x1f, True)
    fb.ellipse(x + h_size, y - h_size, h_size, h_size, 0xf800, True)
    x += vx
    if x == xmax or x == size:
        vx = -vx
    y += vy
    if y == ymax or y == size:
        vy = -vy
    tft._writedata(buf)

[DedFishy]

I had to set the rotation to 1 and switch around the _setwindowloc and FrameBuffer size value X and Y, but it ended up working! Thank you so much for all the help you've given me!