alihan/st7735-python-pimoroni
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Modify to support 160x80 LCD

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Phil Howard
2018-12-10 14:51:35 +00:00
parent b04453116d
commit a5d12018e7
1 changed files with 25 additions and 16 deletions
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41
ST7735/ST7735.py
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@@ -30,12 +30,12 @@ import Adafruit_GPIO.SPI as SPI
# SPI_CLOCK_HZ = 64000000 # 64 MHz
SPI_CLOCK_HZ = 4000000 # 4 MHz
SPI_CLOCK_HZ = 16000000 # 4 MHz
# Constants for interacting with display registers.
ST7735_TFTWIDTH = 128
ST7735_TFTHEIGHT = 160
ST7735_TFTWIDTH = 160 # 128
ST7735_TFTHEIGHT = 80 #64 #160
ST7735_NOP = 0x00
ST7735_SWRESET = 0x01
@@ -116,7 +116,7 @@ def image_to_data(image):
"""Generator function to convert a PIL image to 16-bit 565 RGB bytes."""
# NumPy is much faster at doing this. NumPy code provided by:
# Keith (https://www.blogger.com/profile/02555547344016007163)
pb = np.array(image.convert('RGB')).astype('uint16')
pb = np.rot90(np.array(image.convert('RGB')), 1).astype('uint16')
color = ((pb[:,:,0] & 0xF8) << 8) | ((pb[:,:,1] & 0xFC) << 3) | (pb[:,:,2] >> 3)
return np.dstack(((color >> 8) & 0xFF, color & 0xFF)).flatten().tolist()
@@ -235,7 +235,7 @@ class ST7735(object):
self.command(ST7735_VMCTR1) # Power control
self.data(0x0E)
self.command(ST7735_INVOFF) # Don't invert display
self.command(ST7735_INVON) # Don't invert display
self.command(ST7735_MADCTL) # Memory access control (directions)
self.data(0xC8) # row addr/col addr, bottom to top refresh
@@ -247,15 +247,15 @@ class ST7735(object):
self.command(ST7735_CASET) # Column addr set
self.data(0x00) # XSTART = 0
self.data(0x00)
self.data(132 - ST7735_TFTHEIGHT)
self.data(0x00) # XEND = 127
self.data(0x7F)
self.data(ST7735_TFTHEIGHT - 1)
self.command(ST7735_RASET) # Row addr set
self.data(0x00) # XSTART = 0
self.data(0x00)
self.data(161 - ST7735_TFTWIDTH)
self.data(0x00) # XEND = 159
self.data(0x9F)
self.data(ST7735_TFTWIDTH - 1)
#
@@ -319,16 +319,25 @@ class ST7735(object):
x1 = self.width-1
if y1 is None:
y1 = self.height-1
#y0 += 132 - 80
#y1 += 132 - 80
y0 += 26
y1 += 26
x0 += 1
x1 += 1
self.command(ST7735_CASET) # Column addr set
self.data(x0 >> 8)
self.data(x0) # XSTART
self.data(x1 >> 8)
self.data(x1) # XEND
self.command(ST7735_RASET) # Row addr set
self.data(y0 >> 8)
self.data(y0) # YSTART
self.data(y0) # XSTART
self.data(y1 >> 8)
self.data(y1) # YEND
self.data(y1) # XEND
self.command(ST7735_RASET) # Row addr set
self.data(x0 >> 8)
self.data(x0) # YSTART
self.data(x1 >> 8)
self.data(x1) # YEND
self.command(ST7735_RAMWR) # write to RAM
def display(self, image=None):