Created
July 9, 2025 16:03
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Réception d'un signal MIDI par un Raspberry Pi Pico.
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| ''' | |
| Réception d'un signal MIDI par un Raspberry Pi Pico. | |
| Lors de la récepion d'un message MIDI "note On" ou "note Off", on affiche | |
| les paramètres (hauteur de la note et vélocité). | |
| Pour plus d'infos: | |
| https://electroniqueamateur.blogspot.com/2025/07/midi-in-avec-le-raspberry-pi-pico.html | |
| ''' | |
| import machine | |
| uart = machine.UART(1,31250) | |
| recu = 0 | |
| notes = ['DO','DO#','RE','MIb','MI','FA','FA#','SOL','SOL#','LA','SIb','SI'] | |
| while True: | |
| if (uart.any()): | |
| message = uart.read(1)[0] | |
| if (message < 0xf8): # pour éviter les messages "system real time" | |
| if (message >= 0x80): #c'est donc une commande | |
| commande = message | |
| else: # c'est un data byte | |
| if (recu == 0): # premier data byte | |
| message1 = message | |
| recu = recu + 1 | |
| else: # deuxième data byte | |
| message2 = message | |
| recu = recu + 1 | |
| if (recu == 2): # toutes les informations ont été reçues | |
| recu = 0 | |
| if ((commande == 0x80) or (commande == 0x90)): # message de type NoteOn ou NoteOff | |
| if (message2 == 0): | |
| OnOuOff = 'NoteOff' | |
| else: | |
| OnOuOff = 'NoteOn' | |
| if (commande == 0x80): | |
| OnOuOff = 'NoteOff' | |
| print('Note: ',message1,' (', notes[message1 % 12],') \t Velocite: ' , | |
| message2, ' (',OnOuOff,')') | |
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