import processing.net.*; 
int portf = 5214;
int porta = 5215; 
Client frequency, amplitude; 
int val = 0; 

void setup() { 
  size(200, 200); 
  // Starts a frequency server on port 5214 
  frequency = new Client(this, "127.0.0.1", portf); 
  // Starts an amplitude server on port 5215 
  amplitude = new Client(this, "127.0.0.1", porta);
} 

void draw() { 
  background(val); 
  frequency.write('<'-1);
  frequency.write(str(mouseX));
  amplitude.write('<'-1);
  amplitude.write(str(height - mouseY));
}