alihan/st7735-python-pimoroni
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Issue #22 - Provide support to invert MADCTL from BGR to RGB for Adafruit #358 display https://www.adafruit.com/product/358

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This commit is contained in:
lynniemagoo
2022-03-17 18:21:14 -05:00
parent 1a70d3ae7e
commit 99e44092de
1 changed files with 10 additions and 2 deletions
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12
library/ST7735/__init__.py
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@@ -119,7 +119,7 @@ class ST7735(object):
"""Representation of an ST7735 TFT LCD."""
def __init__(self, port, cs, dc, backlight=None, rst=None, width=ST7735_TFTWIDTH,
height=ST7735_TFTHEIGHT, rotation=90, offset_left=None, offset_top=None, invert=True, spi_speed_hz=4000000):
height=ST7735_TFTHEIGHT, rotation=90, offset_left=None, offset_top=None, invert=True, bgr=True, spi_speed_hz=4000000):
"""Create an instance of the display using SPI communication.
Must provide the GPIO pin number for the D/C pin and the SPI driver.
@@ -154,6 +154,7 @@ class ST7735(object):
self._height = height
self._rotation = rotation
self._invert = invert
self._bgr = bgr
# Default left offset to center display
if offset_left is None:
@@ -280,12 +281,19 @@ class ST7735(object):
self.data(0x0E)
if self._invert:
print("ST7735_INVON")
self.command(ST7735_INVON) # Invert display
else:
print("ST7735_INVOFF")
self.command(ST7735_INVOFF) # Don't invert display
self.command(ST7735_MADCTL) # Memory access control (directions)
self.data(0xC8) # row addr/col addr, bottom to top refresh
if self._bgr:
print("MADCTL 0xC8")
self.data(0xC8) # row addr/col addr, bottom to top refresh; Set D3 RGB Bit to 1 for format BGR
else:
print("MADCTL 0xC0")
self.data(0xC0) # row addr/col addr, bottom to top refresh; Set D3 RGB Bit to 0 for format RGB
self.command(ST7735_COLMOD) # set color mode
self.data(0x05) # 16-bit color