starting to implement for ST7735S

Author: philippkeller

adafruit_rgb_display/rgb.py

@@ -138,6 +138,7 @@ def __init__(self, width, height, rotation):
 
     def init(self):
         """Run the initialization commands."""
+        print('init commands')
         for command, data in self._INIT:
             self.write(command, data)
 

adafruit_rgb_display/st7735.py

@@ -28,6 +28,8 @@
 * Author(s): Radomir Dopieralski, Michael McWethy
 """
 
+import time
+
 try:
     import struct
 except ImportError:
@@ -84,6 +86,9 @@
 _GMCTRP1 = const(0xE0)
 _GMCTRN1 = const(0xE1)
 
+_TSTCMD1 = const(0xF0)
+_DISRPSM1 = const(0xF6)
+
 
 class ST7735(DisplaySPI):
     """
@@ -193,3 +198,81 @@ def init(self):
             self.write(command, data)
         if self._bgr:
             self.write(_MADCTL, b'\xc0')
+
+class ST7735S(ST7735):
+    """A simple driver for the ST7735S-based displays."""
+    _INIT = (
+        # Frame Rate
+        (_FRMCTR1, b'\x01\x2c\x2d'),              # B1
+        (_FRMCTR2, b'\x01\x2c\x2d'),              # B2
+        (_FRMCTR3, b'\x01\x2c\x2d\x01\x2c\x2d'),  # B3
+
+        # Column inversion
+        (_INVCTR, b'\x07'),                       # B4
+
+        # Power Sequence
+        (_PWCTR1, b'\xa2\x02\x84'),               # C0
+        (_PWCTR2, b'\xc5'),                       # C1
+        (_PWCTR3, b'\x0a\x00'),                   # C2
+        (_PWCTR4, b'\x8a\x2a'),                   # C3
+        (_PWCTR5, b'\x8a\xee'),                   # C4
+
+        # VCOM
+        (_VMCTR1, b'\x0e'),                       # C5
+
+        # Gamma
+        (_GMCTRP1, b'\x0f\x1a\x0f\x18\x2f\x28\x20\x22'     # E0
+                   b'\x1f\x1b\x23\x37\x00\x07\x02\x10'),
+
+        (_GMCTRN1, b'\x0f\x1b\x0f\x17\x33\x2c\x29\x2e'     # E1
+                   b'\x30\x30\x39\x3f\x00\x07\x03\x10'),
+        # Enable test command
+        (_TSTCMD1, b'\x01'),                               # F0
+        # Disable ram power save mode
+        (_DISRPSM1, b'\x00'),                              # F6
+        # 65k mode
+        (_COLMOD, b'\x05'),                                # 3A
+        # set scan direction: up to down, right to left
+        (_MADCTL, b'\x60'),                                # 36
+    )
+
+    #pylint: disable-msg=useless-super-delegation, too-many-arguments
+    def __init__(self, spi, dc, cs, bl, rst=None, width=128, height=160,
+                 baudrate=16000000, polarity=0, phase=0, *,
+                 x_offset=2, y_offset=1, rotation=0, bgr=False):
+        self._bl = bl
+        # Turn on backlight
+        print('turn on backlight')
+        self._bl.switch_to_output(value=1)
+        super().__init__(spi, dc, cs, rst, width, height,
+                         baudrate=baudrate, polarity=polarity, phase=phase,
+                         x_offset=x_offset, y_offset=y_offset, rotation=rotation)
+
+    # def reset(self):
+        # print('reset')
+        # self.rst.value = 1
+        # time.sleep(0.100)
+        # self.rst.value = 0
+        # time.sleep(0.100)
+        # self.rst.value = 1
+        # time.sleep(0.100)
+
+    def init(self):
+
+        super().init()
+        print('last commands of init')
+
+        # cols = struct.pack('>HH', 0, self.width - 1)
+        # rows = struct.pack('>HH', 0, self.height - 1)
+
+        # for command, data in (
+                # (_CASET, cols),
+                # (_RASET, rows),
+                # (_NORON, None),
+                # (_DISPON, None),
+        # ):
+            # self.write(command, data)
+        time.sleep(0.200)
+        self.write(_SLPOUT)
+        time.sleep(0.120)
+        self.write(_DISPON)