1  # The MIT License (MIT)
 2  #
 3  # Copyright (c) 2019 Melissa LeBlanc-Williams for Adafruit Industries LLC
 4  #
 5  # Permission is hereby granted, free of charge, to any person obtaining a copy
 6  # of this software and associated documentation files (the "Software"), to deal
 7  # in the Software without restriction, including without limitation the rights
 8  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9  # copies of the Software, and to permit persons to whom the Software is
10  # furnished to do so, subject to the following conditions:
11  #
12  # The above copyright notice and this permission notice shall be included in
13  # all copies or substantial portions of the Software.
14  #
15  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
21  # THE SOFTWARE.
22  """
23  `adafruit_st7789`
24  ====================================================
25  
26  Displayio driver for ST7789 based displays.
27  
28  * Author(s): Melissa LeBlanc-Williams
29  
30  Implementation Notes
31  --------------------
32  
33  **Hardware:**
34  
35  * Adafruit 1.3" 240x240 Wide Angle TFT LCD Display with MicroSD - ST7789:
36    https://www.adafruit.com/product/4313
37  
38  * Adafruit 1.54" 240x240 Wide Angle TFT LCD Display with MicroSD - ST7789:
39    https://www.adafruit.com/product/3787
40  
41  * Adafruit 1.14" 240x135 Color TFT Display + MicroSD Card Breakout - ST7789:
42    https://www.adafruit.com/product/4383
43  
44  * Adafruit Mini PiTFT 1.3" - 240x240 TFT Add-on for Raspberry Pi:
45    https://www.adafruit.com/product/4484
46  
47  * Adafruit 1.3" Color TFT Bonnet for Raspberry Pi - 240x240 TFT + Joystick Add-on
48    https://www.adafruit.com/product/4506
49  
50  * Adafruit Mini PiTFT - 135x240 Color TFT Add-on for Raspberry Pi:
51    https://www.adafruit.com/product/4393
52  
53  **Software and Dependencies:**
54  
55  * Adafruit CircuitPython firmware for the supported boards:
56    https://github.com/adafruit/circuitpython/releases
57  
58  """
59  
60  import displayio
61  
62  __version__ = "0.0.0-auto.0"
63  __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_ST7789.git"
64  
65  _INIT_SEQUENCE = (
66      b"\x01\x80\x96"  # _SWRESET and Delay 150ms
67      b"\x11\x80\xFF"  # _SLPOUT and Delay 500ms
68      b"\x3A\x81\x55\x0A"  # _COLMOD and Delay 10ms
69      b"\x36\x01\x08"  # _MADCTL
70      b"\x21\x80\x0A"  # _INVON Hack and Delay 10ms
71      b"\x13\x80\x0A"  # _NORON and Delay 10ms
72      b"\x36\x01\xC0"  # _MADCTL
73      b"\x29\x80\xFF"  # _DISPON and Delay 500ms
74  )
75  
76  # pylint: disable=too-few-public-methods
77  class ST7789(displayio.Display):
78      """ST7789 driver"""
79  
80      def __init__(self, bus, **kwargs):
81          super().__init__(bus, _INIT_SEQUENCE, **kwargs)