Add missing dependencies and example

.gitignore

@@ -17,3 +17,6 @@ dist
 **/*.egg-info
 .vscode
 *~
+/8x8_enclosure/tm4ext_lasercut_full.svg
+/8x8_enclosure/tm4ext_lasercut_full.svg.licence
+/8x8_enclosure/trellism4_extended.FCStd

README.rst

@@ -21,7 +21,7 @@ Introduction
     :target: https://github.com/psf/black
     :alt: Code Style: Black
 
-CircuitPython library to extended Adafruit NeotrellisM4 board with two Neotrellis seesaw boards (or more !).
+Use Adafruit TrellisM4 Express board as 2 Neotrellis board. You can you use this to extend TrellisM4 with Neotrellis (seesaw) boards.
 
 
 Dependencies
@@ -30,6 +30,9 @@ This driver depends on:
 
 * `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_
 * `Bus Device <https://github.com/adafruit/Adafruit_CircuitPython_BusDevice>`_
+* `Adafruit Neopixel driver <https://github.com/adafruit/Adafruit_CircuitPython_NeoPixel>`_
+* `Adafruit Seesaw driver <https://github.com/adafruit/Adafruit_CircuitPython_seesaw>`_
+* `Adafruit Matrix Keypad library <https://github.com/adafruit/Adafruit_CircuitPython_MatrixKeypad>`_
 
 Please ensure all dependencies are available on the CircuitPython filesystem.
 This is easily achieved by downloading the `Adafruit library and driver bundle <https://circuitpython.org/libraries>`_.
@@ -38,7 +41,31 @@ This is easily achieved by downloading the `Adafruit library and driver bundle <
 Usage Example
 =============
 
-See examples directory.
+To use Trellis as 2 Neotrellis (seesaw):
+
+.. code-block:: python3
+
+    from neotrellism4 import NeoTrellisM4
+    trellis_left = NeoTrellisM4()
+    trellis_right = NeoTrellisM4(left_part=trellis_left)
+
+To use TrellisM4 tilled with Neotrellis (seesaw):
+
+.. code-block:: python3
+
+    from board import SCL, SDA
+    import busio
+    from adafruit_neotrellis.neotrellism4 import NeoTrellisM4
+    from adafruit_neotrellis.neotrellis import NeoTrellis
+    from adafruit_neotrellis.multitrellis import MultiTrellis
+    I2C = busio.I2C(SCL, SDA)
+    trellim4_left = NeoTrellisM4()
+    trellim4_right = NeoTrellisM4(left_part=trellim4_left)
+    trelli = [
+        [trellim4_left, trellim4_right],
+        [NeoTrellis(I2C, False, addr=0x2F), NeoTrellis(I2C, False, addr=0x2E)]
+        ]
+    trellis = MultiTrellis(trelli)
 
 
 Contributing