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refactored for Macropad library #1613

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Merged
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Jul 14, 2021
Merged

refactored for Macropad library #1613

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78 changes: 32 additions & 46 deletions Macropad_Ableton/code.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,45 +4,34 @@
# In Ableton, choose "Launchpad Mini Mk3" as controller with MacroPad 2040 as in and out
# Use empty fifth scene to allow "unlaunching" of tracks with encoder modifier
import board
from digitalio import DigitalInOut, Pull
import keypad
from adafruit_macropad import MacroPad
import displayio
import terminalio
import neopixel
import rotaryio
from adafruit_simplemath import constrain
from adafruit_display_text import label
from adafruit_debouncer import Debouncer
import usb_midi
import adafruit_midi
from adafruit_midi.control_change import ControlChange
from adafruit_midi.note_off import NoteOff
from adafruit_midi.note_on import NoteOn
from adafruit_midi.midi_message import MIDIUnknownEvent

macropad = MacroPad()

TITLE_TEXT = "Live Launcher 2040"
print(TITLE_TEXT)
TRACK_NAMES = ["DRUM", "BASS", "SYNTH"] # Customize these
LIVE_CC_NUMBER = 74 # CC number to send w encoder
FADER_TEXT = "cutoff" # change for intended CC name


# --- MIDI recieve is complex, so not using macropad.midi
midi = adafruit_midi.MIDI(
midi_in=usb_midi.ports[0],
in_channel=(0, 1, 2),
midi_out=usb_midi.ports[1],
out_channel=0
)

# ---Specify key pins---
key_pins = (
board.KEY1, board.KEY2, board.KEY3,
board.KEY4, board.KEY5, board.KEY6,
board.KEY7, board.KEY8, board.KEY9,
board.KEY10, board.KEY11, board.KEY12
)
# ---Create keypad object---
keys = keypad.Keys(key_pins, value_when_pressed=False, pull=True)

# ---Official Launchpad colors---
LP_COLORS = (
Expand Down Expand Up @@ -76,17 +65,12 @@
modifier = False # use to add encoder switch modifier to keys for clip mute
MODIFIER_NOTES = [41, 42, 43, 41, 42, 43, 41, 42, 43, 41, 42, 43] # blank row in Live

# ---Encoder setup---
encoder = rotaryio.IncrementalEncoder(board.ENCODER_B, board.ENCODER_A)
sw = DigitalInOut(board.ENCODER_SWITCH)
sw.switch_to_input(pull=Pull.UP)
switch = Debouncer(sw)
last_position = 0 # encoder position state

# ---NeoPixel setup---
BRIGHT = 0.125
DIM = 0.0625
pixels = neopixel.NeoPixel(board.NEOPIXEL, 12, brightness=BRIGHT, auto_write=False)
macropad.pixels.brightness = BRIGHT

# ---Display setup---
display = board.DISPLAY
Expand All @@ -97,7 +81,7 @@
FONT = terminalio.FONT
# Draw a title label
title = TITLE_TEXT
title_area = label.Label(FONT, text=title, color=0xFFFFFF,x=6, y=3)
title_area = label.Label(FONT, text=title, color=0xFFFFFF, x=6, y=3)
screen.append(title_area)

# --- create display strings and positions
Expand Down Expand Up @@ -139,7 +123,7 @@
group = displayio.Group(max_size=4, x=x, y=y)
group.append(label_area)
screen.append(group)
labels.append(label_area) # these can be individually addressed later
labels.append(label_area) # these are individually addressed later

num = 1

Expand All @@ -158,18 +142,22 @@
)
# send neopixel lightup code to key, text to display
if msg_in.note in LP_PADS:
pixels[LP_PADS[msg_in.note]] = LP_COLORS[msg_in.velocity]
pixels.show()
macropad.pixels[LP_PADS[msg_in.note]] = LP_COLORS[msg_in.velocity]
macropad.pixels.show()
if msg_in.velocity == 21: # active pad is indicated by Live as vel 21
labels[LP_PADS[msg_in.note]+3].text = "o"
else:
labels[LP_PADS[msg_in.note]+3].text = "."

elif (
isinstance(msg_in, NoteOff)
or isinstance(msg_in, NoteOn)
and msg_in.velocity == 0
):
elif isinstance(msg_in, NoteOff):
print(
"received NoteOff",
"from channel",
msg_in.channel + 1,
"\n"
)

elif isinstance(msg_in, NoteOn) and msg_in.velocity == 0:
print(
"received NoteOff",
"from channel",
Expand Down Expand Up @@ -200,11 +188,11 @@
elif msg_in is not None:
midi.send(msg_in)

event = keys.events.get() # check for keypad events
key_event = macropad.keys.events.get() # check for keypad events

if not event: # Event is None; no keypad event happened, do other stuff
if not key_event: # Event is None; no keypad event happened, do other stuff

position = encoder.position # store encoder position state
position = macropad.encoder # store encoder position state
cc_position = constrain((position + CC_OFFSET), 0, 127) # lock to cc range
if last_position is None or position != last_position:

Expand All @@ -219,35 +207,33 @@
cc_val_text_area.text = str(cc_position)
last_position = position

switch.update() # check the encoder switch w debouncer
if switch.fell:
macropad.encoder_switch_debounced.update() # check the encoder switch w debouncer
if macropad.encoder_switch_debounced.pressed:
print("Mod")
push_text_area.text = "[.]"
modifier = True
pixels.brightness = DIM
pixels.show()
macropad.pixels.brightness = DIM

if switch.rose:
if macropad.encoder_switch_debounced.released:
modifier = False
push_text_area.text = "[o]"
pixels.brightness = BRIGHT
pixels.show()
macropad.pixels.brightness = BRIGHT

continue

num = event.key_number
num = key_event.key_number

if event.pressed and not modifier:
if key_event.pressed and not modifier:
midi.send(NoteOn(LIVE_NOTES[num], 127))
print("\nsent note", LIVE_NOTES[num], "\n")

if event.pressed and modifier:
if key_event.pressed and modifier:
midi.send(NoteOn(MODIFIER_NOTES[num], 127))

if event.released and not modifier:
if key_event.released and not modifier:
midi.send(NoteOff(LIVE_NOTES[num], 0))

if event.released and modifier:
if key_event.released and modifier:
midi.send(NoteOff(MODIFIER_NOTES[num], 0))

pixels.show()
macropad.pixels.show()