Re : Wait for Arduino Before Sending Data Over Serial

In my Processing program, I added a section that paused in a while loop every 32 iterations until it receives feedback from the arduino (and also sends a 'Y' character to let the arduino know that it's paused), then continues with the main void draw()

2. void draw() {  
3. 
   
4. ++waiting;
5. if(waiting==32) {
6.   arduinoPort.write('Y');
7.   while (1==1) {
8.     int inByte = arduinoPort.read();
9.     if(inByte == 78) {
10.       break;
11.     }
12.   }
13.   waiting = 1;
14. }

and in my arduino code, I just added  a section specifying that if the Processing program is paused, send an 'N' lo let it know to continue.