From 7d08bc27e23251b74f4b41f6ecbc0a565e67dbb4 Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Mon, 23 Jan 2017 15:50:37 +1100
Subject: [PATCH] docs/pyboard/tutorial: Add tutorial for LCD160CR.

---
 docs/pyboard/tutorial/index.rst         |   1 +
 docs/pyboard/tutorial/lcd160cr_skin.rst | 132 ++++++++++++++++++++++++
 2 files changed, 133 insertions(+)
 create mode 100644 docs/pyboard/tutorial/lcd160cr_skin.rst

diff --git a/docs/pyboard/tutorial/index.rst b/docs/pyboard/tutorial/index.rst
index ae40f47b8..07f136c9b 100644
--- a/docs/pyboard/tutorial/index.rst
+++ b/docs/pyboard/tutorial/index.rst
@@ -35,6 +35,7 @@ Tutorials requiring extra components
    fading_led.rst
    lcd_skin.rst
    amp_skin.rst
+   lcd160cr_skin.rst
 
 Tips, tricks and useful things to know
 --------------------------------------
diff --git a/docs/pyboard/tutorial/lcd160cr_skin.rst b/docs/pyboard/tutorial/lcd160cr_skin.rst
new file mode 100644
index 000000000..f0bc34e1e
--- /dev/null
+++ b/docs/pyboard/tutorial/lcd160cr_skin.rst
@@ -0,0 +1,132 @@
+The LCD160CR skin
+=================
+
+This tutorial shows how to get started using the LCD160CR skin.
+
+.. image:: http://micropython.org/resources/LCD160CRv10-persp.jpg
+    :alt: LCD160CRv1.0 picture
+    :width: 640px
+
+For detailed documentation of the driver for the display see the
+:mod:`lcd160cr` module.
+
+Plugging in the display
+-----------------------
+
+The display can be plugged directly into a pyboard (all pyboard versions
+are supported).  You plug the display onto the top of the pyboard either
+in the X or Y positions.  The display should cover half of the pyboard.
+
+Getting the driver
+------------------
+
+You can control the display directly using a power/enable pin and an I2C
+bus, but it is much more convenient to use the driver provided by the
+:mod:`lcd160cr` module.  This driver is included in recent version of the
+pyboard firmware (see `here <http://micropython.org/download>`__).  You
+can also find the driver in the GitHub repository
+`here <https://github.com/micropython/micropython/blob/master/drivers/display/lcd160cr.py>`__, and to use this version you will need to copy the file to your
+board, into a directory that is searched by import (usually the lib/
+directory).
+
+Once you have the driver installed you need to import it to use it::
+
+    import lcd160cr
+
+Testing the display
+-------------------
+
+There is a test program which you can use to test the features of the display,
+and which also serves as a basis to start creating your own code that uses the
+LCD.  This test program is included in recent versions of the pyboard firmware
+and is also available on GitHub
+`here <https://github.com/micropython/micropython/blob/master/drivers/display/lcd160cr_test.py>`__.
+
+To run the test from the MicroPython prompt do::
+
+    >>> import lcd160cr_test
+
+It will then print some brief instructions.  You will need to know which
+position your display is connected to (X or Y) and then you can run (assuming
+you have the display on position X)::
+
+    >>> test_all('X')
+
+Drawing some graphics
+---------------------
+
+You must first create an LCD160CR object which will control the display.  Do this
+using::
+
+    >>> import lcd160cr
+    >>> lcd = lcd160cr.LCD160CR('X')
+
+This assumes your display is connected in the X position.  If it's in the Y
+position then use ``lcd = lcd160cr.LCD160CR('Y')`` instead.
+
+To erase the screen and draw a line, try::
+
+    >>> lcd.set_pen(lcd.rgb(255, 0, 0), lcd.rgb(64, 64, 128))
+    >>> lcd.erase()
+    >>> lcd.line(10, 10, 50, 80)
+
+The next example draws random rectangles on the screen.  You can copy-and-paste it
+into the MicroPython prompt by first pressing "Ctrl-E" at the prompt, then "Ctrl-D"
+once you have pasted the text. ::
+
+    from random import randint
+    for i in range(1000):
+        fg = lcd.rgb(randint(128, 255), randint(128, 255), randint(128, 255))
+        bg = lcd.rgb(randint(0, 128), randint(0, 128), randint(0, 128))
+        lcd.set_pen(fg, bg)
+        lcd.rect(randint(0, lcd.w), randint(0, lcd.h), randint(10, 40), randint(10, 40))
+
+Using the touch sensor
+----------------------
+
+The display includes a resistive touch sensor that can report the position (in
+pixels) of a single force-based touch on the screen.  To see if there is a touch
+on the screen use::
+
+    >>> lcd.is_touched()
+
+This will return either ``False`` or ``True``.  Run the above command while touching
+the screen to see the result.
+
+To get the location of the touch you can use the method::
+
+    >>> lcd.get_touched()
+
+This will return a 3-tuple, with the first entry being 0 or 1 depending on whether
+there is currently anything touching the screen (1 if there is), and the second and
+third entries in the tuple being the x and y coordinates of the current (or most
+recent) touch.
+
+Directing the MicroPython output to the display
+-----------------------------------------------
+
+The display supports input from a UART and implements basic VT100 commands, which
+means it can be used as a simple, general purpose terminal.  Let's set up the
+pyboard to redirect its output to the display.
+
+First you need to create a UART object::
+
+    >>> import pyb
+    >>> uart = pyb.UART('XA', 115200)
+
+This assumes your display is connected to position X.  If it's on position Y then
+use ``uart = pyb.UART('YA', 115200)`` instead.
+
+Now, connect the REPL output to this UART::
+
+    >>> pyb.repl_uart(uart)
+
+From now on anything you type at the MicroPython prompt, and any output you
+receive, will appear on the display.
+
+No set-up commands are required for this mode to work and you can use the display
+to monitor the output of any UART, not just from the pyboard.  All that is needed
+is for the display to have power, ground and the power/enable pin driven high.
+Then any characters on the display's UART input will be printed to the screen.
+You can adjust the UART baudrate from the default of 115200 using the
+`set_uart_baudrate` method.
-- 
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