gistfile1.txt

int pot = 0; // potentiometer
int push = 0; // presser sensor
int incoming; // stores incoming data (clicks sent from p5)

void setup() {
  Serial.begin(9600);
  pinMode(7, OUTPUT); // green LED
  pinMode(4, OUTPUT); // blue LED
  pinMode(2, OUTPUT); // yellow LED
}

void loop() {
  int potVal = analogRead(A0); // potentiometer pin
  int pushVal = analogRead(A1); // pressure sensor pin 
  // min of pot = 0 , max of pot = 1023
  // min of push = 0 , max of push = 990 about
  
  // initial testing of sensors
      // Serial.println(pushVal);
      // Serial.print("Potentiometer:   ");
      // Serial.print(potVal);
      // Serial.print("   ||   Pressure:   ");
      // Serial.println(pushVal);

  // BINARY: 
      // send a single byte (range 0 - 255)
  // ASCII: larger messages

  // format it correctly so p5 can parse it correctly
  Serial.print(potVal);
  Serial.print(",");
  Serial.println(pushVal);

  // sending messages from p5 to arduino
  if(Serial.available() > 0){
    incoming = Serial.read(); // store data onto incoming variable

    // light up green LED if top region is clicked
    if(incoming > 0 && incoming < 80){
      digitalWrite(7, HIGH); 
      digitalWrite(4, LOW);
      digitalWrite(2, LOW);
    }

    // light up blue LED if middle region is clicked
    if(incoming > 80 && incoming < 160){
      digitalWrite(7, LOW);
      digitalWrite(4, HIGH);
      digitalWrite(2, LOW);
    }

    // light up yellow LED if bottom region is clicked
    if(incoming > 160 && incoming < 350){
      digitalWrite(7, LOW);
      digitalWrite(4, LOW);
      digitalWrite(2, HIGH);
    }
  }
}