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reduced polyphony lag #2075

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Feb 27, 2022
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reduced polyphony lag #2075

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33 changes: 18 additions & 15 deletions Macropad_MIDI_Tester/code.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
# SPDX-FileCopyrightText: 2021 John Park for Adafruit Industries
# SPDX-FileCopyrightText: 2022 John Park for Adafruit Industries
# SPDX-License-Identifier: MIT
# Macropad MIDI Tester
# Play MIDI notes with keys
Expand All @@ -10,6 +10,7 @@
CC_NUM = 74 # select your CC number

macropad = MacroPad(rotation=180) # create the macropad object, rotate orientation
macropad.display.auto_refresh = False # avoid lag

# --- Pixel setup --- #
key_color = colorwheel(120) # fill with cyan to start
Expand Down Expand Up @@ -38,20 +39,20 @@


while True:

key_event = macropad.keys.events.get() # check for key press or release
if key_event:
if key_event.pressed:
key = key_event.key_number
macropad.midi.send(macropad.NoteOn(midi_notes[key], 120)) # send midi noteon
macropad.pixels[key] = colorwheel(90) # light up green
text_lines[1].text = "NoteOn:{}".format(midi_notes[key])

if key_event.released:
key = key_event.key_number
macropad.midi.send(macropad.NoteOff(midi_notes[key], 0))
macropad.pixels[key] = key_color # return to color set by encoder bank value
text_lines[1].text = "NoteOff:{}".format(midi_notes[key])
while macropad.keys.events: # check for key press or release
key_event = macropad.keys.events.get()
if key_event:
if key_event.pressed:
key = key_event.key_number
macropad.midi.send(macropad.NoteOn(midi_notes[key], 120)) # send midi noteon
macropad.pixels[key] = colorwheel(90) # light up green
text_lines[1].text = "NoteOn:{}".format(midi_notes[key])

if key_event.released:
key = key_event.key_number
macropad.midi.send(macropad.NoteOff(midi_notes[key], 0))
macropad.pixels[key] = key_color # return to color set by encoder bank value
text_lines[1].text = "NoteOff:{}".format(midi_notes[key])

macropad.encoder_switch_debounced.update() # check the knob switch for press or release
if macropad.encoder_switch_debounced.pressed:
Expand Down Expand Up @@ -91,3 +92,5 @@
text_lines[0].text = ("Mode: %s %d" % (mode_text[mode], midi_values[mode]-8))

last_knob_pos = macropad.encoder

macropad.display.refresh()