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CircuitPython_TrellisM4_extended
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Some "linting"

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arofarn 2 years ago
parent 41d8245f04
commit 021ca85f06
4 changed files with 55 additions and 45 deletions
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20
README.rst
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@ -40,32 +40,32 @@ Usage Example
=============
::
import time
from board import SCL, SDA
import busio
from adafruit_neotrellis.neotrellis import NeoTrellis
from adafruit_neotrellis.multitrellis import MultiTrellis
from neotrellism4 import NeoTrellisM4
#create the i2c object for the trellis
I2C = busio.I2C(SCL, SDA)
# Create the trellis. This is for a 2x2 array of TrellisM4 (first row) with
# 2 Neotrellis (second row).
#
# [ NeoM4_left | NeoM4_right ]
# neotrellis0 | neotrellis1
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)
#some color definitions
OFF = (0, 0, 0)
RED = (127, 0, 0)
@ -74,7 +74,7 @@ Usage Example
CYAN = (0, 127, 127)
BLUE = (0, 0, 127)
PURPLE = (90, 0, 127)
#this will be called when button events are received
def blink(xcoord, ycoord, edge):
#turn the LED on when a rising edge is detected
@ -83,7 +83,7 @@ Usage Example
#turn the LED off when a rising edge is detected
elif edge == NeoTrellis.EDGE_FALLING:
trellis.color(xcoord, ycoord, OFF)
for y in range(8):
for x in range(8):
# activate rising edge events on all keys
@ -94,12 +94,12 @@ Usage Example
trellis.set_callback(x, y, blink)
trellis.color(x, y, PURPLE)
time.sleep(.05)
for y in range(8):
for x in range(8):
trellis.color(x, y, OFF)
time.sleep(.05)
while True:
#the trellis can only be read every 17 millisecons or so
trellis.sync()

7
docs/conf.py
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@ -29,8 +29,11 @@ extensions = [
intersphinx_mapping = {
"python": ("https://docs.python.org/3.4", None),"BusDevice": ("https://circuitpython.readthedocs.io/projects/busdevice/en/latest/", None),
"python": ("https://docs.python.org/3.4", None),
"BusDevice": (
"https://circuitpython.readthedocs.io/projects/busdevice/en/latest/",
None,
),
"CircuitPython": ("https://circuitpython.readthedocs.io/en/latest/", None),
}

13
examples/trellism4_extended_simpletest.py
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@ -22,8 +22,10 @@ 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)]]
trelli = [
[trellim4_left, trellim4_right],
[NeoTrellis(I2C, False, addr=0x2F), NeoTrellis(I2C, False, addr=0x2E)],
]
trellis = MultiTrellis(trelli)
@ -46,6 +48,7 @@ def blink(xcoord, ycoord, edge):
elif edge == NeoTrellis.EDGE_FALLING:
trellis.color(xcoord, ycoord, OFF)
for y in range(8):
for x in range(8):
# activate rising edge events on all keys
@ -55,14 +58,14 @@ for y in range(8):
trellis.activate_key(x, y, NeoTrellis.EDGE_FALLING)
trellis.set_callback(x, y, blink)
trellis.color(x, y, PURPLE)
time.sleep(.05)
time.sleep(0.05)
for y in range(8):
for x in range(8):
trellis.color(x, y, OFF)
time.sleep(.05)
time.sleep(0.05)
while True:
# the trellis can only be read every 17 millisecons or so
trellis.sync()
time.sleep(.02)
time.sleep(0.02)

60
trellism4_extended.py
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@ -52,24 +52,29 @@ _TRELLISM4_RIGHT_PART = const(4)
def _key(xval):
return int(int(xval/4)*8 + (xval%4))
return int(int(xval / 4) * 8 + (xval % 4))
def _seesaw_key(xval):
return int(int(xval/8)*4 + (xval%8))
return int(int(xval / 8) * 4 + (xval % 8))
def _to_seesaw_key(xval):
return int(xval + (xval // 4) * 4)
class _TrellisNeoPixel:
"""Neopixel driver
"""
"""Neopixel driver"""
# Lots of stuff come from Adafruit_CircuitPython_seesaw/neopixel.py
def __init__(self, auto_write=True, brightness=1.0,
part=_TRELLISM4_LEFT_PART, left_part=None):
def __init__(
self, auto_write=True, brightness=1.0, part=_TRELLISM4_LEFT_PART, left_part=None
):
if part == _TRELLISM4_LEFT_PART:
self.pix = NeoPixel(board.NEOPIXEL, 32, auto_write=False, brightness=brightness)
self.pix = NeoPixel(
board.NEOPIXEL, 32, auto_write=False, brightness=brightness
)
elif part == _TRELLISM4_RIGHT_PART:
self.pix = left_part.pix
self.auto_write = auto_write
@ -84,8 +89,7 @@ class _TrellisNeoPixel:
return self.pix[_key(key) + self._offset]
def fill(self, color):
"""Fill method wrapper
"""
"""Fill method wrapper"""
# Suppress auto_write while filling.
current_auto_write = self.auto_write
self.auto_write = False
@ -96,8 +100,7 @@ class _TrellisNeoPixel:
self.auto_write = current_auto_write
def show(self):
"""Fill method wrapper
"""
"""Fill method wrapper"""
self.pix.show()
@ -130,7 +133,7 @@ class _TrellisKeypad:
row = []
for x in range(4):
row.append(4 * x + y)
key_names.append(row) # Keys of each halves is numbered from 0-15
key_names.append(row) # Keys of each halves is numbered from 0-15
self._matrix = Matrix_Keypad(col_pins, self.row_pins, key_names)
@ -178,15 +181,16 @@ class NeoTrellisM4:
self.keypad = _TrellisKeypad()
else:
self._offset = _TRELLISM4_RIGHT_PART
self.pixels = _TrellisNeoPixel(32,
part=_TRELLISM4_RIGHT_PART,
left_part=left_part.pixels)
self.keypad = _TrellisKeypad(part=_TRELLISM4_RIGHT_PART,
row_pins=left_part.keypad.row_pins)
self.pixels = _TrellisNeoPixel(
32, part=_TRELLISM4_RIGHT_PART, left_part=left_part.pixels
)
self.keypad = _TrellisKeypad(
part=_TRELLISM4_RIGHT_PART, row_pins=left_part.keypad.row_pins
)
self._events = [0] * _NEO_TRELLIS_NUM_KEYS
self._current_press = set()
self._key_edges = [self.EDGE_HIGH] * _NEO_TRELLIS_NUM_KEYS # Keys edges
self._key_edges = [self.EDGE_HIGH] * _NEO_TRELLIS_NUM_KEYS # Keys edges
self._current_events = bytearray()
self.callbacks = [None] * 16
@ -203,21 +207,21 @@ class NeoTrellisM4:
Interrupts are disable on trellis M4 keypad
"""
print("Warning: no interrupt with Trellis M4 keypad (method does nothing)")
# pylint: enable=unused-argument, no-self-use
@property
def count(self):
"""Return the pressed keys count
"""
"""Return the pressed keys count"""
self._read_keypad()
return len(self._current_events)
# pylint: disable=unused-argument, no-self-use
@count.setter
def count(self, value):
"""Only for compatibility with neotrellis module
"""
"""Only for compatibility with neotrellis module"""
raise AttributeError("count is read only")
# pylint: enable=unused-argument, no-self-use
def set_event(self, key, edge, enable):
@ -246,10 +250,9 @@ class NeoTrellisM4:
return self._current_events[:num]
def _read_keypad(self):
"""Read keypad and update _key_edges and _current_events
"""
"""Read keypad and update _key_edges and _current_events"""
pressed = set(self.keypad.pressed_keys)
#default : not pressed => EDGE_HIGH
# default : not pressed => EDGE_HIGH
self._key_edges = [self.EDGE_HIGH] * _NEO_TRELLIS_NUM_KEYS
for k in pressed:
self._key_edges[k] = self.EDGE_LOW
@ -266,7 +269,6 @@ class NeoTrellisM4:
raw_evt = (_to_seesaw_key(k) << 2) | self._key_edges[k]
self._current_events.append(raw_evt)
def activate_key(self, key, edge, enable=True):
"""Activate or deactivate a key on the trellis.
@ -278,7 +280,6 @@ class NeoTrellisM4:
"""
self.set_event(key, edge, enable)
def sync(self):
"""Read any events from the Trellis hardware and call associated
callbacks
@ -289,5 +290,8 @@ class NeoTrellisM4:
buf = self.read_keypad(available)
for raw in buf:
evt = KeyEvent(_seesaw_key((raw >> 2) & 0x3F), raw & 0x3)
if evt.number < _NEO_TRELLIS_NUM_KEYS and self.callbacks[evt.number] is not None:
if (
evt.number < _NEO_TRELLIS_NUM_KEYS
and self.callbacks[evt.number] is not None
):
self.callbacks[evt.number](evt)

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