class Trellis(object):
def __init__(self):
# setup trellis
i2c_bus = busio.I2C(SCL, SDA)
self.trellis = MultiTrellis(
[
[
NeoTrellis(i2c_bus, True, addr=0x31),
NeoTrellis(i2c_bus, True, addr=0x30),
NeoTrellis(i2c_bus, True, addr=0x2F),
NeoTrellis(i2c_bus, True, addr=0x2E),
],
[
NeoTrellis(i2c_bus, True, addr=0x35),
NeoTrellis(i2c_bus, True, addr=0x34),
NeoTrellis(i2c_bus, True, addr=0x33),
NeoTrellis(i2c_bus, True, addr=0x32),
],
]
)
# interrupt pin - sync only when needed
self.interrupt = digitalio.DigitalInOut(D5)
self.interrupt.direction = digitalio.Direction.INPUT
def update(self):
if self.interrupt.value is False:
self.trellis.sync()
#this will be called when button events are received
def blink(xcoord, ycoord, edge):
#turn the LED on when a rising edge is detected
if edge == NeoTrellis.EDGE_RISING:
trellis.color(xcoord, ycoord, BLUE)
#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
trellis.activate_key(x, y, NeoTrellis.EDGE_RISING)
#activate falling edge events on all keys
trellis.activate_key(x, y, NeoTrellis.EDGE_FALLING)
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()
time.sleep(.02)
class Display(Thread):
"""docstring for Display."""
def __init__(self, button_bus, led_bus, i2c_bus):
Thread.__init__(self, name='Display')
# super(Display, self).__init__()
self.button_bus = button_bus
self.led_bus = led_bus
debug("Creating i2c bus")
lcd.flash("Creating i2c bus")
# i2c_bus = busio.I2C(SCL, SDA)
lcd.setup_hw(i2c_bus)
debug("i2c bus created")
lcd.flash("i2c bus created")
debug("Creating Trelli")
lcd.flash("Creating Trelli")
trelli = [[], [], [], []]
# addrs = trellis_addresses
# Create trelli sequentially with a slight pause between each
for x, slice in enumerate(trellis_addresses):
for y, addr in enumerate(slice):
t = NeoTrellis(i2c_bus, False, addr=addr)
t.pixels.auto_write = False
trelli[x].append(t)
sleep(0.1)
debug("Linking Trelli")
lcd.flash("Linking Trelli")
self.trellis = MultiTrellis(trelli)
debug("Trelli linked")
lcd.flash("Trelli linked")
self.grid_h = H
self.grid_w = W
self.state = 'play'
self.led_matrix = [[(0, 0, 0) for x in range(w)] for y in range(h)]
self.old_led_matrix = [[(0, 0, 0) for x in range(w)] for y in range(h)]
button_cb = self.make_cb()
debug("Initializing Trelli inputs")
lcd.flash("Initializing Trelli inputs")
for y in range(self.grid_h):
for x in range(self.grid_w):
sleep(0.01)
self.trellis.activate_key(x, y, NeoTrellis.EDGE_RISING)
sleep(0.01)
self.trellis.activate_key(x, y, NeoTrellis.EDGE_FALLING)
self.trellis.set_callback(x, y, button_cb)
self.ins_button = digitalio.DigitalInOut(D13)
self.gbl_button = digitalio.DigitalInOut(D6)
debug("Inputs initialized")
lcd.flash("Inputs initialized")
self.col_scheme = select_scheme('default')
return
def run(self):
debug("Display thread started")
while True:
sleep(0.01)
m = self.get_cmds()
if m.get('cmd') != None:
debug(m)
self.button_bus.put(m)
if not self.led_bus.empty():
status, led_grid = self.led_bus.get()
self.draw_all(status, led_grid)
return
def read_gbl_button(self):
return not self.gbl_button.value
def read_ins_button(self):
return not self.ins_button.value
def get_cmds(self):
try:
self.trellis.sync() # TODO undo? Fails if called too often
except Exception as e:
debug("HW error: {}".format(str(e)))
m = {'cmd': None}
if self.read_gbl_button():
if self.state != 'gbl_cfg':
m['cmd'] = "CONFIG_A"
self.state = 'gbl_cfg'
else:
self.state = 'play'
elif self.read_ins_button():
if self.state != 'ins_cfg':
m['cmd'] = "CONFIG_B"
self.state = 'ins_cfg'
else:
self.state = 'play'
return m
def draw_all(self, status, led_grid):
self.draw_note_grid(led_grid)
self.redraw_diff()
return
def blank_screen(self):
for x in range(len(self.led_matrix)):
for y in range(len(self.led_matrix[x])):
self.led_matrix[x][y] = OFF
def redraw_diff(self):
diffs = []
for x in range(len(self.led_matrix)):
for y in range(len(self.led_matrix[x])):
if self.led_matrix[x][y] != self.old_led_matrix[x][y]:
diffs.append((x, y, self.led_matrix[x][y]))
self.old_led_matrix[x][y] = self.led_matrix[x][y]
for diff in diffs:
self.trellis.color(diff[0], diff[1], diff[2])
sleep(0.001)
if len(diffs) > 0:
if not AUTO_WRITE:
for ts in self.trellis._trelli:
for t in ts:
t.pixels.show()
return
def draw_note_grid(self, led_grid):
for x in range(len(led_grid)):
for y in range(len(led_grid[x])):
color = self.col_scheme.get_color(led_grid[x][y], x, y)
# col = c.PALLETE[led_grid[x][y]]
self.led_matrix[x][self.grid_h - 1 - y] = color
return
def make_cb(self):
def button_cb(xcoord, ycoord, edge):
if edge == NeoTrellis.EDGE_RISING:
self.button_bus.put({
'cmd': 'note',
'x': xcoord,
'y': self.grid_h - 1 - ycoord
})
return
return button_cb
def draw_load_screen(self):
return
PURPLE = (180, 0, 255)
#this will be called when button events are received
def blink(xcoord, ycoord, edge):
#turn the LED on when a rising edge is detected
if edge == NeoTrellis.EDGE_RISING:
trellis.color(xcoord, ycoord, BLUE)
#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
trellis.activate_key(x, y, NeoTrellis.EDGE_RISING)
#activate falling edge events on all keys
trellis.activate_key(x, y, NeoTrellis.EDGE_FALLING)
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()
time.sleep(.02)