working tested with 96x96 display

Author: ladyada

.gitignore

@@ -0,0 +1,6 @@
+__pycache__
+_build
+*.pyc
+.env
+build*
+bundles

.pylintrc

@@ -0,0 +1,3 @@
+python:
+    version: 3
+requirements_file: requirements.txt

.readthedocs.yml

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+# This is a common .travis.yml for generating library release zip files for
+# CircuitPython library releases using circuitpython-build-tools.
+# See https://github.com/adafruit/circuitpython-build-tools for detailed setup
+# instructions.
+
+dist: xenial
+language: python
+python:
+    - "3.6"
+
+cache:
+    pip: true
+
+deploy:
+  provider: releases
+  api_key: $GITHUB_TOKEN
+  file_glob: true
+  file: $TRAVIS_BUILD_DIR/bundles/*
+  skip_cleanup: true
+  overwrite: true
+  on:
+    tags: true
+
+install:
+  - pip install -r requirements.txt
+  - pip install circuitpython-build-tools Sphinx sphinx-rtd-theme
+  - pip install --force-reinstall pylint==1.9.2
+
+script:
+  - pylint adafruit_sharpmemorydisplay.py
+  - ([[ ! -d "examples" ]] || pylint --disable=missing-docstring,invalid-name,bad-whitespace examples/*.py)
+  - circuitpython-build-bundles --filename_prefix adafruit-circuitpython-sharpmemorydisplay --library_location .
+  - cd docs && sphinx-build -E -W -b html . _build/html && cd ..

.travis.yml

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+# Adafruit Community Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and leaders pledge to making participation in our project and
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+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 1.4, available at
+<https://www.contributor-covenant.org/version/1/4/code-of-conduct.html>,
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CODE_OF_CONDUCT.md

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2018 ladyada for Adafruit Industries
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

LICENSE

@@ -0,0 +1,88 @@
+Introduction
+============
+
+.. image:: https://readthedocs.org/projects/adafruit-circuitpython-sharpmemorydisplay/badge/?version=latest
+    :target: https://circuitpython.readthedocs.io/projects/sharpmemorydisplay/en/latest/
+    :alt: Documentation Status
+
+.. image:: https://img.shields.io/discord/327254708534116352.svg
+    :target: https://discord.gg/nBQh6qu
+    :alt: Discord
+
+.. image:: https://travis-ci.com/adafruit/Adafruit_CircuitPython_SHARPMemoryDisplay.svg?branch=master
+    :target: https://travis-ci.com/adafruit/Adafruit_CircuitPython_SHARPMemoryDisplay
+    :alt: Build Status
+
+A display control library for Sharp 'memory' displays
+
+Dependencies
+=============
+This driver depends on:
+
+* `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_
+
+Please ensure all dependencies are available on the CircuitPython filesystem.
+This is easily achieved by downloading
+`the Adafruit library and driver bundle <https://github.com/adafruit/Adafruit_CircuitPython_Bundle>`_.
+
+Usage Example
+=============
+
+See the examples folder for a demonstration of drawing pixels, lines and text
+
+Contributing
+============
+
+Contributions are welcome! Please read our `Code of Conduct
+<https://github.com/adafruit/Adafruit_CircuitPython_SHARPMemoryDisplay/blob/master/CODE_OF_CONDUCT.md>`_
+before contributing to help this project stay welcoming.
+
+Building locally
+================
+
+Zip release files
+-----------------
+
+To build this library locally you'll need to install the
+`circuitpython-build-tools <https://github.com/adafruit/circuitpython-build-tools>`_ package.
+
+.. code-block:: shell
+
+    python3 -m venv .env
+    source .env/bin/activate
+    pip install circuitpython-build-tools
+
+Once installed, make sure you are in the virtual environment:
+
+.. code-block:: shell
+
+    source .env/bin/activate
+
+Then run the build:
+
+.. code-block:: shell
+
+    circuitpython-build-bundles --filename_prefix adafruit-circuitpython-sharpmemorydisplay --library_location .
+
+Sphinx documentation
+-----------------------
+
+Sphinx is used to build the documentation based on rST files and comments in the code. First,
+install dependencies (feel free to reuse the virtual environment from above):
+
+.. code-block:: shell
+
+    python3 -m venv .env
+    source .env/bin/activate
+    pip install Sphinx sphinx-rtd-theme
+
+Now, once you have the virtual environment activated:
+
+.. code-block:: shell
+
+    cd docs
+    sphinx-build -E -W -b html . _build/html
+
+This will output the documentation to ``docs/_build/html``. Open the index.html in your browser to
+view them. It will also (due to -W) error out on any warning like Travis will. This is a good way to
+locally verify it will pass.

README.rst

@@ -0,0 +1,120 @@
+# The MIT License (MIT)
+#
+# Copyright (c) 2018 ladyada for Adafruit Industries
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+"""
+`adafruit_sharpmemorydisplay`
+====================================================
+
+A display control library for Sharp 'memory' displays
+
+* Author(s): ladyada
+
+Implementation Notes
+--------------------
+
+**Hardware:**
+
+* `Adafruit SHARP Memory Display Breakout - 1.3 inch 168x144 Monochrome
+<https://www.adafruit.com/product/3502>`_
+
+* `Adafruit SHARP Memory Display Breakout - 1.3 inch 96x96 Monochrome
+<https://www.adafruit.com/product/1393>`_
+
+**Software and Dependencies:**
+
+* Adafruit CircuitPython firmware for the supported boards:
+  https://github.com/adafruit/circuitpython/releases
+
+"""
+
+from micropython import const
+import adafruit_framebuf
+
+__version__ = "0.0.0-auto.0"
+__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_SharpMemoryDisplay.git"
+
+_SHARPMEM_BIT_WRITECMD = const(0x80)  # in lsb
+_SHARPMEM_BIT_VCOM = const(0x40)  # in lsb
+_SHARPMEM_BIT_CLEAR = const(0x20)  # in lsb
+
+def reverse_bit(num):
+    """Turn an LSB byte to an MSB byte, and vice versa. Used for SPI as
+    it is LSB for the SHARP, but 99% of SPI implementations are MSB only!"""
+    result = 0
+    for _ in range(8):
+        result <<= 1
+        result += (num & 1)
+        num >>= 1
+    return result
+
+
+class SharpMemoryDisplay(adafruit_framebuf.FrameBuffer):
+    """A driver for sharp memory displays, you can use any size but the
+    full display must be buffered in memory!"""
+    # pylint: disable=too-many-instance-attributes
+
+    def __init__(self, spi, scs_pin, width, height, *, baudrate=16000000):
+        self._scs_pin = scs_pin
+        scs_pin.switch_to_output(value=True)
+        self._baudrate = baudrate
+        # The SCS pin is active HIGH so we can't use bus_device. exciting!
+        self._spi = spi
+        # prealloc for when we write the display
+        self._buf = bytearray(1)
+
+        # even tho technically this display is LSB, we have to flip the bits
+        # when writing out SPI so lets just do flipping once, in the buffer
+        self.buffer = bytearray((width // 8) * height)
+        super().__init__(self.buffer, width, height, buf_format=adafruit_framebuf.MHMSB)
+
+        # Set the vcom bit to a defined state
+        self._vcom = True
+
+    def show(self):
+        """write out the frame buffer via SPI, we use MSB SPI only so some
+        bit-swapping is rquired. The display also uses inverted CS for some
+        reason so we con't use bus_device"""
+
+        # CS pin is inverted so we have to do this all by hand
+        while not self._spi.try_lock():
+            pass
+        self._spi.configure(baudrate=self._baudrate)
+        self._scs_pin.value = True
+
+        # toggle the VCOM bit
+        self._buf[0] = _SHARPMEM_BIT_WRITECMD
+        if self._vcom:
+            self._buf[0] |= _SHARPMEM_BIT_VCOM
+        self._vcom = not self._vcom
+        self._spi.write(self._buf)
+
+        slice_from = 0
+        line_len = self.width//8
+        for line in range(self.height):
+            self._buf[0] = reverse_bit(line+1)
+            self._spi.write(self._buf)
+            self._spi.write(memoryview(self.buffer[slice_from:slice_from+line_len]))
+            slice_from += line_len
+            self._buf[0] = 0
+            self._spi.write(self._buf)
+        self._spi.write(self._buf)  # we send one last 0 byte
+        self._scs_pin.value = False
+        self._spi.unlock()

adafruit_sharpmemorydisplay.py

@@ -0,0 +1,8 @@
+
+.. If you created a package, create one automodule per module in the package.
+
+.. If your library file(s) are nested in a directory (e.g. /adafruit_foo/foo.py)
+.. use this format as the module name: "adafruit_foo.foo"
+
+.. automodule:: adafruit_sharpmemorydisplay
+   :members:

docs/_static/favicon.ico

@@ -0,0 +1,160 @@
+# -*- coding: utf-8 -*-
+
+import os
+import sys
+sys.path.insert(0, os.path.abspath('..'))
+
+# -- General configuration ------------------------------------------------
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+    'sphinx.ext.autodoc',
+    'sphinx.ext.intersphinx',
+    'sphinx.ext.napoleon',
+    'sphinx.ext.todo',
+]
+
+# TODO: Please Read!
+# Uncomment the below if you use native CircuitPython modules such as
+# digitalio, micropython and busio. List the modules you use. Without it, the
+# autodoc module docs will fail to generate with a warning.
+# autodoc_mock_imports = ["digitalio", "busio"]
+
+
+intersphinx_mapping = {'python': ('https://docs.python.org/3.4', None),'CircuitPython': ('https://circuitpython.readthedocs.io/en/latest/', None)}
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+source_suffix = '.rst'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+project = u'Adafruit SHARPMemoryDisplay Library'
+copyright = u'2018 ladyada'
+author = u'ladyada'
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+#
+# The short X.Y version.
+version = u'1.0'
+# The full version, including alpha/beta/rc tags.
+release = u'1.0'
+
+# The language for content autogenerated by Sphinx. Refer to documentation
+# for a list of supported languages.
+#
+# This is also used if you do content translation via gettext catalogs.
+# Usually you set "language" from the command line for these cases.
+language = None
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+# This patterns also effect to html_static_path and html_extra_path
+exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store', '.env', 'CODE_OF_CONDUCT.md']
+
+# The reST default role (used for this markup: `text`) to use for all
+# documents.
+#
+default_role = "any"
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+#
+add_function_parentheses = True
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+# If true, `todo` and `todoList` produce output, else they produce nothing.
+todo_include_todos = False
+
+# If this is True, todo emits a warning for each TODO entries. The default is False.
+todo_emit_warnings = True
+
+napoleon_numpy_docstring = False
+
+# -- Options for HTML output ----------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+#
+on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
+
+if not on_rtd:  # only import and set the theme if we're building docs locally
+    try:
+        import sphinx_rtd_theme
+        html_theme = 'sphinx_rtd_theme'
+        html_theme_path = [sphinx_rtd_theme.get_html_theme_path(), '.']
+    except:
+        html_theme = 'default'
+        html_theme_path = ['.']
+else:
+    html_theme_path = ['.']
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+
+# The name of an image file (relative to this directory) to use as a favicon of
+# the docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
+# pixels large.
+#
+html_favicon = '_static/favicon.ico'
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = 'AdafruitSharpmemorydisplayLibrarydoc'
+
+# -- Options for LaTeX output ---------------------------------------------
+
+latex_elements = {
+     # The paper size ('letterpaper' or 'a4paper').
+     #
+     # 'papersize': 'letterpaper',
+
+     # The font size ('10pt', '11pt' or '12pt').
+     #
+     # 'pointsize': '10pt',
+
+     # Additional stuff for the LaTeX preamble.
+     #
+     # 'preamble': '',
+
+     # Latex figure (float) alignment
+     #
+     # 'figure_align': 'htbp',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title,
+#  author, documentclass [howto, manual, or own class]).
+latex_documents = [
+    (master_doc, 'AdafruitSHARPMemoryDisplayLibrary.tex', u'AdafruitSHARPMemoryDisplay Library Documentation',
+     author, 'manual'),
+]
+
+# -- Options for manual page output ---------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [
+    (master_doc, 'AdafruitSHARPMemoryDisplaylibrary', u'Adafruit SHARPMemoryDisplay Library Documentation',
+     [author], 1)
+]
+
+# -- Options for Texinfo output -------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+    (master_doc, 'AdafruitSHARPMemoryDisplayLibrary', u'Adafruit SHARPMemoryDisplay Library Documentation',
+     author, 'AdafruitSHARPMemoryDisplayLibrary', 'One line description of project.',
+     'Miscellaneous'),
+]

docs/api.rst

@@ -0,0 +1,8 @@
+Simple test
+------------
+
+Ensure your device works with this simple test.
+
+.. literalinclude:: ../examples/sharpmemorydisplay_simpletest.py
+    :caption: examples/sharpmemorydisplay_simpletest.py
+    :linenos:

docs/conf.py

@@ -0,0 +1,50 @@
+.. include:: ../README.rst
+
+Table of Contents
+=================
+
+.. toctree::
+    :maxdepth: 4
+    :hidden:
+
+    self
+
+.. toctree::
+    :caption: Examples
+
+    examples
+
+.. toctree::
+    :caption: API Reference
+    :maxdepth: 3
+
+    api
+
+.. toctree::
+    :caption: Tutorials
+
+.. toctree::
+    :caption: Related Products
+
+	* `Adafruit SHARP Memory Display Breakout - 1.3 inch 168x144 Monochrome <https://www.adafruit.com/product/3502>`_
+
+	* `Adafruit SHARP Memory Display Breakout - 1.3 inch 96x96 Monochrome <https://www.adafruit.com/product/1393>`_
+
+
+.. toctree::
+    :caption: Other Links
+
+    Download <https://github.com/adafruit/Adafruit_CircuitPython_SHARPMemoryDisplay/releases/latest>
+    CircuitPython Reference Documentation <https://circuitpython.readthedocs.io>
+    CircuitPython Support Forum <https://forums.adafruit.com/viewforum.php?f=60>
+    Discord Chat <https://adafru.it/discord>
+    Adafruit Learning System <https://learn.adafruit.com>
+    Adafruit Blog <https://blog.adafruit.com>
+    Adafruit Store <https://www.adafruit.com>
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`

docs/examples.rst

@@ -0,0 +1,61 @@
+import time
+import board
+import busio
+import digitalio
+
+import adafruit_sharpmemorydisplay
+
+# Initialize SPI bus and control pins
+spi = busio.SPI(board.SCK, MOSI=board.MOSI)
+scs = digitalio.DigitalInOut(board.D6) # inverted chip select
+
+# pass in the display size, width and height, as well
+display = adafruit_sharpmemorydisplay.SharpMemoryDisplay(spi, scs, 96, 96)
+
+print("Pixel test")
+
+# Clear the display.  Always call show after changing pixels to make the display
+# update visible!
+display.fill(1)
+display.show()
+
+# Set a pixel in the origin 0,0 position.
+display.pixel(0, 0, 0)
+# Set a pixel in the middle position.
+display.pixel(display.width//2, display.width//2, 0)
+# Set a pixel in the opposite corner position.
+display.pixel(display.width-1, display.height-1, 0)
+display.show()
+time.sleep(0.1)
+
+print("Lines test")
+# we'll draw from corner to corner, lets define all the pair coordinates here
+corners = ((0, 0), (0, display.height-1), (display.width-1, 0),
+           (display.width-1, display.height-1))
+
+display.fill(1)
+for corner_from in corners:
+    for corner_to in corners:
+        display.line(corner_from[0], corner_from[1],
+                     corner_to[0], corner_to[1], 0)
+display.show()
+time.sleep(0.1)
+
+print("Rectangle test")
+display.fill(1)
+w_delta = display.width / 10
+h_delta = display.height / 10
+for i in range(11):
+    display.rect(0, 0, int(w_delta*i), int(h_delta*i), 0)
+display.show()
+time.sleep(0.1)
+
+print("Text test")
+display.fill(1)
+display.text(' hello world!', 0, 0, 0)
+display.text(' This is the', 0, 8, 0)
+display.text(' CircuitPython', 0, 16, 0)
+display.text('adafruit library', 0, 24, 0)
+display.text(' for the SHARP', 0, 32, 0)
+display.text(' Memory Display :) ', 0, 40, 0)
+display.show()

docs/index.rst

@@ -0,0 +1,2 @@
+Adafruit-Blinka
+adafruit-circuitpython-framebuf