kopia lustrzana https://github.com/micropython/micropython-lib
51 wiersze
1.3 KiB
Python
51 wiersze
1.3 KiB
Python
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# MicroPython USB MIDI example
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#
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# This example demonstrates creating a custom MIDI device.
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#
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# This example uses the usb-device-midi package for the MIDIInterface class.
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# This can be installed with:
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#
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# mpremote mip install usb-device-midi
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#
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# MIT license; Copyright (c) 2023-2024 Angus Gratton
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import usb.device
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from usb.device.midi import MIDIInterface
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import time
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class MIDIExample(MIDIInterface):
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def on_note_on(self, channel, pitch, vel):
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print(f"RX Note On channel {channel} pitch {pitch} velocity {vel}")
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def on_note_off(self, channel, pitch, vel):
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print(f"RX Note Off channel {channel} pitch {pitch} velocity {vel}")
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def on_control_change(self, channel, controller, value):
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print(f"RX Control channel {channel} controller {controller} value {value}")
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m = MIDIExample()
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usb.device.get().init(m)
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print("Waiting for USB host to configure the interface...")
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while not m.is_open():
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time.sleep_ms(100)
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print("Starting MIDI loop...")
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control_val = 0
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channel = 0
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while m.is_open():
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time.sleep(1)
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m.note_on(channel, 60)
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time.sleep(0.5)
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m.note_off(channel, 60)
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time.sleep(1)
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m.control_change(channel, 64, control_val)
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control_val += 1
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if control_val == 0x7F:
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control_val = 0
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time.sleep(1)
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