int switchPin = 2;    // switch input
int motor1Pin = 3;    // H-bridge leg 1
int motor2Pin = 4;    // H-bridge leg 2
int speedPin = 10;    // H-bridge enable pin
int ledPin = 12;       // LED

int analogOne = 1;     // fsr
int analogTwo = 2;     // fsr
int analogThree = 3;   // photocell
int analogFour = 4;    // mic

int sensorValue = 0;    // reading from sensor
int val = 0;

void setup() {
  Serial.begin(9600);

  pinMode(switchPin, INPUT);
  pinMode(motor1Pin, OUTPUT);  // set all other pins as outputs
  pinMode(motor2Pin, OUTPUT); 
  pinMode(ledPin, OUTPUT);     // sets the digital pin as output

  digitalWrite(speedPin, HIGH);
}

void loop() {
  val = Serial.read(); 

  if (val == 'A') {
    digitalWrite(ledPin, HIGH); 
    digitalWrite(motor1Pin, LOW);
    digitalWrite(motor2Pin, HIGH);
  }
  if (val == 'a') {
    digitalWrite(ledPin, LOW); 
    digitalWrite(motor1Pin, LOW);
    digitalWrite(motor2Pin, LOW);
  }

  //get sensor readings
  sensorValue = analogRead(analogOne);
  Serial.print(sensorValue, DEC);
  Serial.print(",");

  sensorValue = analogRead(analogTwo);
  Serial.print(sensorValue, DEC);
  Serial.print(",");

  sensorValue = analogRead(analogThree);
  Serial.print(sensorValue, DEC);
  Serial.print(",");

  sensorValue = analogRead(analogFour);
  Serial.println(sensorValue, DEC);
}