Arduino-Sunflower-Semiconductor-Miniproject/Arduino Code/Arduino.c at main · GyaneshSamanta/Arduino-Sunflower-Semiconductor-Miniproject · GitHub

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#include <Servo.h> // Header file for the use of servo motors

//defining Servos

Servo servohori; // Horizontal Servo Motor
int servoh = 0;
int servohLimitHigh = 160;
int servohLimitLow = 20;

Servo servoverti; // Vertical Servo Motor
int servov = 0;
int servovLimitHigh = 160;
int servovLimitLow = 20;

//Assigning LDRs

int ldrtopl = 2; //top left LDR green
int ldrtopr = 1; //top right LDR yellow
int ldrbotl = 3; // bottom left LDR blue
int ldrbotr = 0; // bottom right LDR orange

void setup()
{
  servohori.attach(10);
  servohori.write(0);
  servoverti.attach(9);
  servoverti.write(0);
  delay(500);
}

void loop()
{
  servoh = servohori.read();
  servov = servoverti.read();

  //capturing analog values of each LDR

  int topl = analogRead(ldrtopl);
  int topr = analogRead(ldrtopr);
  int botl = analogRead(ldrbotl);
  int botr = analogRead(ldrbotr);

  // calculating average

  int avgtop = (topl + topr) / 2;   //average of top LDRs
  int avgbot = (botl + botr) / 2;   //average of bottom LDRs
  int avgleft = (topl + botl) / 2;  //average of left LDRs
  int avgright = (topr + botr) / 2; //average of right LDRs

  if (avgtop < avgbot)
  {
    servoverti.write(servov + 1);
    if (servov > servovLimitHigh)
    {
      servov = servovLimitHigh;
    }
    delay(10);
  }
  else if (avgbot < avgtop)
  {
    servoverti.write(servov - 1);
    if (servov < servovLimitLow)
    {
      servov = servovLimitLow;
    }
    delay(10);
  }
  else
  {
    servoverti.write(servov);
  }

  if (avgleft > avgright)
  {
    servohori.write(servoh + 1);
    if (servoh > servohLimitHigh)
    {
      servoh = servohLimitHigh;
    }
    delay(10);
  }
  else if (avgright > avgleft)
  {
    servohori.write(servoh - 1);
    if (servoh < servohLimitLow)
    {
      servoh = servohLimitLow;
    }
    delay(10);
  }
  else
  {
    servohori.write(servoh);
  }
  delay(50);
}