Using different MIDI over USB libraries my code seems to fail on reading the neokey.
Below the code of a standard example that works without the seesaw library and NeoKey stuff..
Adding the library is OK but as soon as I add a "neokey.read()" my code stops.
The QT Py with Adafruit NeoKey 1x4 QT I2C Breakout works OK with other code (no MIDI).
Lines I added are tagged "// ADDED FOR NeoKey TEST"
Any tips are welcome :-)
The code:
Code: Select all
/*********************************************************************
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MIT license, check LICENSE for more information
Copyright (c) 2019 Ha Thach for Adafruit Industries
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*********************************************************************/
/* This sketch is enumerated as USB MIDI device.
* Following library is required
* - MIDI Library by Forty Seven Effects
* https://github.com/FortySevenEffects/arduino_midi_library
*/
#include <Arduino.h>
#include <Adafruit_TinyUSB.h>
#include <MIDI.h>
#include <Adafruit_NeoKey_1x4.h> // ADDED FOR NeoKey TEST
#include <seesaw_neopixel.h> // ADDED FOR NeoKey TEST
Adafruit_NeoKey_1x4 neokey; // ADDED FOR NeoKey TEST
// USB MIDI object
Adafruit_USBD_MIDI usb_midi;
// Create a new instance of the Arduino MIDI Library,
// and attach usb_midi as the transport.
MIDI_CREATE_INSTANCE(Adafruit_USBD_MIDI, usb_midi, MIDI);
// Variable that holds the current position in the sequence.
uint32_t position = 0;
// Store example melody as an array of note values
byte note_sequence[] = {
74,78,81,86,90,93,98,102,57,61,66,69,73,78,81,85,88,92,97,100,97,92,88,85,81,78,
74,69,66,62,57,62,66,69,74,78,81,86,90,93,97,102,97,93,90,85,81,78,73,68,64,61,
56,61,64,68,74,78,81,86,90,93,98,102
};
void setup()
{
#if defined(ARDUINO_ARCH_MBED) && defined(ARDUINO_ARCH_RP2040)
// Manual begin() is required on core without built-in support for TinyUSB such as mbed rp2040
TinyUSB_Device_Init(0);
#endif
pinMode(LED_BUILTIN, OUTPUT);
usb_midi.setStringDescriptor("TinyUSB MIDI");
// Initialize MIDI, and listen to all MIDI channels
// This will also call usb_midi's begin()
MIDI.begin(MIDI_CHANNEL_OMNI);
// Attach the handleNoteOn function to the MIDI Library. It will
// be called whenever the Bluefruit receives MIDI Note On messages.
MIDI.setHandleNoteOn(handleNoteOn);
// Do the same for MIDI Note Off messages.
MIDI.setHandleNoteOff(handleNoteOff);
Serial.begin(115200);
// wait until device mounted
while( !TinyUSBDevice.mounted() ) delay(1);
}
void loop()
{
/* If the line below is active (just reading the neokey 1x4) my code is not executed */
// uint8_t buttons = neokey.read(); // ADDED FOR NeoKey TEST
static uint32_t start_ms = 0;
if ( millis() - start_ms > 266 )
{
start_ms += 266;
// Setup variables for the current and previous
// positions in the note sequence.
int previous = position - 1;
// If we currently are at position 0, set the
// previous position to the last note in the sequence.
if (previous < 0) {
previous = sizeof(note_sequence) - 1;
}
// Send Note On for current position at full velocity (127) on channel 1.
MIDI.sendNoteOn(note_sequence[position], 127, 1);
// Send Note Off for previous note.
MIDI.sendNoteOff(note_sequence[previous], 0, 1);
// Increment position
position++;
// If we are at the end of the sequence, start over.
if (position >= sizeof(note_sequence)) {
position = 0;
}
}
// read any new MIDI messages
MIDI.read();
}
void handleNoteOn(byte channel, byte pitch, byte velocity)
{
// Log when a note is pressed.
Serial.print("Note on: channel = ");
Serial.print(channel);
Serial.print(" pitch = ");
Serial.print(pitch);
Serial.print(" velocity = ");
Serial.println(velocity);
}
void handleNoteOff(byte channel, byte pitch, byte velocity)
{
// Log when a note is released.
Serial.print("Note off: channel = ");
Serial.print(channel);
Serial.print(" pitch = ");
Serial.print(pitch);
Serial.print(" velocity = ");
Serial.println(velocity);
}