47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
"""
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This example sends MIDI out. It sends NoteOn and then NoteOff with a random pitch bend.
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"""
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import time
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import random
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import adafruit_ble
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from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
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import adafruit_ble_midi
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import adafruit_midi
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from adafruit_midi.control_change import ControlChange
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from adafruit_midi.note_off import NoteOff
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from adafruit_midi.note_on import NoteOn
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from adafruit_midi.pitch_bend import PitchBend
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# Use default HID descriptor
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midi_service = adafruit_ble_midi.MIDIService()
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advertisement = ProvideServicesAdvertisement(midi_service)
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# advertisement.appearance = 961
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ble = adafruit_ble.BLERadio()
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if ble.connected:
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for c in ble.connections:
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c.disconnect()
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midi = adafruit_midi.MIDI(midi_out=midi_service, out_channel=0)
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print("advertising")
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ble.start_advertising(advertisement)
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while True:
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print("Waiting for connection")
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while not ble.connected:
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pass
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print("Connected")
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while ble.connected:
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midi.send(NoteOn(44, 120)) # G sharp 2nd octave
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time.sleep(0.25)
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a_pitch_bend = PitchBend(random.randint(0, 16383))
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midi.send(a_pitch_bend)
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time.sleep(0.25)
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# note how a list of messages can be used
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midi.send([NoteOff("G#2", 120), ControlChange(3, 44)])
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time.sleep(0.5)
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print("Disconnected")
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print()
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ble.start_advertising(advertisement)
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