soft_wearable_controler

  int upPin = A0;  // select analog input pins for the pressure sensors
  int downPin = A1;

  int up;  // declare variables to store the values coming from the sensors
  int down;
  
  int pump = 8;  //this pin is named to keep track of which pin the air pump is on
 
  int level; //declare variable to track the selected level

void setup() {
  Serial.begin(9600);
  
  // setup pins to be inputs or outputs
  pinMode(1, OUTPUT);  
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  
// for pins controlling solenoid valves, HIGH means the valve is closed and not letting air through, 
 //for the pump, HIGH means it is on and pumping air into the system.
  digitalWrite(1, HIGH);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(pump, LOW);
 

  level = 0;  //set the "score" of the level to 0 to start
  
}

void loop() {
    up= analogRead(upPin);
  down = analogRead(downPin);
  
  Serial.println(up);
  Serial.println(down);
  
  // calculate current level and set the bounds of the levels so that the "level" is 
  //always a number that aligns with one of the defined states
  if (up >= 10) {
    level = (level +1);
    delay(500);
  }

  if (down >= 10) {
    level = (level - 1);
    delay(500);
  }

  if (level < 0) {
    level = 0;
  }

  if (level > 3) {
    level = 3;
  }

  Serial.print("level = ");
  Serial.println(level);

  //inflate pouches for visual and tactile level indication

   
  if (level == 1) {
    digitalWrite(pump, HIGH);
    digitalWrite(1, LOW);
    digitalWrite(2, HIGH);
    digitalWrite(3, HIGH);
  }

  else if (level == 2) {
    digitalWrite(pump, HIGH);
    digitalWrite(1, LOW);
    digitalWrite(2, LOW);
    digitalWrite(3, HIGH);
  }

  else if (level == 3) {
    digitalWrite(pump, HIGH);
    digitalWrite(1, LOW);
    digitalWrite(2, LOW);
    digitalWrite(3, LOW);
  }

  else  {
    digitalWrite(pump, LOW);
    digitalWrite(1, HIGH);
    digitalWrite(2, HIGH);
    digitalWrite(3, HIGH);
  }
  
}