adafruit-mirror/Adafruit_Learning_System_Guides
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

fixed name to avoid confusion

Browse source
This commit is contained in:
John Park 2023-10-18 12:41:54 -07:00
parent a604216fbb
commit 448ae58349
1 changed files with 35 additions and 35 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

70
Grand_Central_MIDI_Knobs/code.py
View file

@ -1,8 +1,8 @@
# SPDX-FileCopyrightText: 2021 John Park for Adafruit Industries
# SPDX-FileCopyrightText: 2023 John Park for Adafruit Industries
# SPDX-License-Identifier: MIT
# Grand Central MIDI Knobs
# for USB MIDI
# for USB MIDI and optional UART MIDI
# Reads analog inputs, sends out MIDI CC values
# with Kattni Rembor and Jan Goolsbey for range and hysteresis code
@ -16,18 +16,18 @@ import usb_midi
import adafruit_midi # MIDI protocol encoder/decoder library
from adafruit_midi.control_change import ControlChange
USB_MIDI_channel = 1 # pick your USB MIDI out channel here, 1-16
# pick your USB MIDI out channel here, 1-16
MIDI_USB_channel = 1
# pick your classic MIDI channel for sending over UART serial TX/RX
CLASSIC_MIDI_channel = 2
usb_midi = adafruit_midi.MIDI(
midi_out=usb_midi.ports[1], out_channel=USB_MIDI_channel - 1
midi_usb = adafruit_midi.MIDI(
midi_out=usb_midi.ports[1], out_channel=MIDI_USB_channel - 1
)
# use DIN-5 or TRS MIDI jack on TX/RX for classic MIDI
uart = busio.UART(board.TX, board.RX, baudrate=31250, timeout=0.001) # initialize UART
midi_uart = busio.UART(board.TX, board.RX, baudrate=31250, timeout=0.001) # initialize UART
classic_midi = adafruit_midi.MIDI(
midi_out=uart, midi_in=uart, out_channel=CLASSIC_MIDI_channel - 1, debug=False
midi_out=midi_uart, midi_in=midi_uart, out_channel=CLASSIC_MIDI_channel - 1, debug=False
)
led = DigitalInOut(board.D13) # activity indicator
@ -45,22 +45,22 @@ for k in range(knob_count):
# assignment of knobs to cc numbers
cc_number = [
1, # knob 0, mod wheel
2, # knob 1, breath control
7, # knob 2, volume
10, # knob 3 pan
11, # knob 4, expression
53, # knob 5
54, # knob 6
74, # knob 7
74, # knob 8, Filter frequency cutoff
71, # knob 9, Filter resonance
58, # knob 10
59, # knob 11
60, # knob 12
61, # knob 13
62, # knob 14
63, # knob 15
1, # knob 1, mod wheel
2, # knob 2, breath control
7, # knob 3, volume
10, # knob 4 pan
11, # knob 5, expression
53, # knob 6
54, # knob 7
73, # knob 8
74, # knob 9, Filter frequency cutoff
71, # knob 10, Filter resonance
58, # knob 11
59, # knob 12
60, # knob 13
61, # knob 14
62, # knob 15
63, # knob 16
]
# CC range list defines the characteristics of the potentiometers
@ -70,15 +70,15 @@ cc_number = [
# 36 (C2) min, 84 (B5) max: 49-note keyboard
# 21 (A0) min, 108 (C8) max: 88-note grand piano
cc_range = [
(36, 84), # knob 0: C2 to B5: 49-note keyboard
(36, 84), # knob 1
(36, 84), # knob 2
(36, 84), # knob 3
(36, 84), # knob 4
(36, 84), # knob 5
(36, 84), # knob 6
(36, 84), # knob 7
(0, 127), # knob 8: 0 to 127: full range MIDI CC/control voltage for VCV Rack
(0, 127), # knob 0: C2 to B5: 49-note keyboard
(0, 127), # knob 1
(0, 127), # knob 2
(0, 127), # knob 3
(0, 127), # knob 4
(0, 127), # knob 5
(0, 127), # knob 6
(0, 127), # knob 7
(0, 127), # knob 8
(0, 127), # knob 9
(0, 127), # knob 10
(0, 127), # knob 11
@ -89,7 +89,7 @@ cc_range = [
]
print("---Grand Central MIDI Knobs---")
print(" USB MIDI channel: {}".format(USB_MIDI_channel))
print(" USB MIDI channel: {}".format(MIDI_USB_channel))
print(" TRS MIDI channel: {}".format(CLASSIC_MIDI_channel))
# Initialize cc_value list with current value and offset placeholders
@ -134,7 +134,7 @@ while True:
)
if cc_value[i] != last_cc_value[i]: # only send if it changed
# Form a MIDI CC message and send it:
usb_midi.send(ControlChange(cc_number[i], cc_value[i][0] + cc_range[i][0]))
midi_usb.send(ControlChange(cc_number[i], cc_value[i][0] + cc_range[i][0]))
classic_midi.send(
ControlChange(cc_number[i], cc_value[i][0] + cc_range[i][0])
)