   midi_soft_serial.begin();
 
   MIDI.begin(MIDI_CHANNEL_OMNI);
-  // MIDI.turnThruOff();  // midi through should work non-blocking now
+  MIDI.turnThruOff();  // midi through should work non-blocking now
 }
 
 

  }
#endif

#if 0  // test receive
  while (midi_rx_available())
  {
    uint8_t in = midi_rx_read();
    if (midi_tx_available)
      midi_tx_write(in);
    Serial.print("RX: ");
    Serial.print(to_hex((in>>4)&0x0f));
    Serial.println(to_hex(in&0x0f));
  }
#endif




/*
 * Under development.
 * Midi with a custom software serial implementation with non-blocking read/write.
 */

