MIDI.SendSysEx adds last send type to every 3 bytes

[koenschepens]

Hello,

First of all thanks for the amazing work!

I'm having problems with sending SysEx messages though. I'm trying to send SysEx from the Arduino using hiduino, but for every 3 bytes, the last sent MIDI signal byte gets added.

My code:

include

MIDI_CREATE_DEFAULT_INSTANCE();

void setup() { MIDI.turnThruOff(); MIDI.begin(); }

void loop() { MIDI.sendNoteOff(2,5,6); byte sysex_message [] = { 0x7D,0x01,0x00,0x12,0x7B,0x22,0x7D,0x5D,0x7D}; MIDI.sendSysEx(sizeof(sysex_message)/sizeof(byte), sysex_message, false); delay(1000); }

Using MIDIMonitor, I can see this results in this: 7224485941539 From arduino_midi Note Off 6 85 02 05 7224486192131 From arduino_midi SysEx F0 F7 7224486816029 From arduino_midi Note Off 6 85 7D 01 7224487474300 From arduino_midi Note Off 6 85 00 12 7224488106447 From arduino_midi Note Off 6 85 7B 22 7224488737423 From arduino_midi Note Off 6 85 7D 5D 7224489393674 From arduino_midi Invalid 00 F7

If I change MIDI.sendNoteOff(2,5,6) to MIDI.sendNoteOn(2,5,6), the result is this:

7315676492278 From arduino_midi Note On 6 95 02 05 7315676725341 From arduino_midi SysEx F0 F7 7315677367149 From arduino_midi Note On 6 95 7D 01 7315678008872 From arduino_midi Note On 6 95 00 12 7315678647752 From arduino_midi Note On 6 95 7B 22 7315679315940 From arduino_midi Note On 6 95 7D 5D 7315679923905 From arduino_midi Invalid 00 F7

Now I understood that SysEx is not fully supported (receiving is going fine by the way). But is there any known workaround or fix to this problem?

Thanks in advance!

Yours,

Koen

[sanotronics]

something similar is happening to me

I've also posted this in the Arduino MIDI Library GH.