Sending a TTL pulse when pellet is dispensed?

[JP Riggle]

Hello I'd like to send a ttl pulse when the pellet is dispensed separate from the one when its retrieved. I'm using Fed.feed(100) to account for the pellet taken and I tried to modify the FED3 C++ code to account for the dispensed using a prior example from the forum by inserting  BNC (150,1);  but I am seemingly not getting that ttl pulse. 

//If pellet is detected during or after this motion

    if (pelletDispensed == true) {    

      ReleaseMotor ();

      pelletTime = millis();

      BNC (150,1);

      display.fillCircle(25, 99, 5, BLACK);

      display.refresh();

      retInterval = (millis() - pelletTime);

      //while pellet is present and under 60s has elapsed

      while (digitalRead (PELLET_WELL) == LOW and retInterval < 60000) {  //After pellet is detected, hang here for up to 1 minute to detect when it is removed

        retInterval = (millis() - pelletTime);

        DisplayRetrievalInt();

any guidance would be appreciated!

[JP Riggle]

As it turns out I am actually getting that pulse I guess the mouse was just pausing a long time for the first couple pellets and I somehow managed to miss it.