Term 2 Project - Camera drop/retract mechanism code

After doing a little prototyping with polystyrene today to get a better mental image of the ship and where things are going and creating fixtures for the electronics boxes, I have finalised the code for the camera drop mechanism.  I still need to code the light sensor/LED combination in, but the code is as below (video below code) :



#define _relay 8
#define _motor 9
const int controlPin1 = 2;
const int controlPin2 = 3;
int previousState;
int motorDirection;

int timex = millis(); //----optional if controlling other things that require it
int timer = 0;        //----optional if controlling other things that require it



void setup() {

  // put your setup code here, to run once:

  Serial.begin(9600);

  previousState = 1;
  motorDirection = 1;


  pinMode(_relay, INPUT);
  pinMode(_motor, OUTPUT);
  pinMode(controlPin1, OUTPUT);
  pinMode(controlPin2, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:

  //--------------------Camera drop in contact with water & retracts when not -------------


//------Water sensor module senses water: drop camera---------------------


  if (digitalRead(_relay) == HIGH && previousState ==!1) {


    Serial.print("  ON - Submerging Camera ");

    digitalWrite(controlPin1, LOW);
    digitalWrite(controlPin2, HIGH);

    delay(5000);

    digitalWrite(_motor, HIGH);

    delay(2000);
    digitalWrite(_motor, LOW);

    previousState = 1;



    digitalWrite(controlPin1, LOW);
    digitalWrite(controlPin2, LOW);

  }

//------Water sensor module does not sense water: retract camera---------------------

  if (digitalRead(_relay) == LOW && previousState == 1) {

    motorDirection != 1;

    Serial.print("  OFF  - Retracting Camera");
    digitalWrite(controlPin1, HIGH);
    digitalWrite(controlPin2, LOW);

    delay(5000);
    digitalWrite(_motor, HIGH);

    delay(2000);
    digitalWrite(_motor, LOW);

    previousState = !1;

    digitalWrite(controlPin1, LOW);
    digitalWrite(controlPin2, LOW);

  }


}


//---------------------------------------------------------------------------------------------------------------------

Until next time,

Luis