int hold = 0;  // Create "hold" and set to 0 for now
int IR[700];   // Create a list of 700 integers; a list called IR.  If you want to point to a certain area, you can say hold = IR[556], and hold will now hold the value in address 556 of IR.

 
void setup() {       // Start setting things up
Serial.begin(9600);  // Setup the serial monitor with a baud rate of 9600
pinMode(A2,OUTPUT);  // Set A2 as an output.  A2 connects to the GD pin of the IR clip
digitalWrite(A2,LOW); // Set the GD pin to LOW to act as a ground
delay(10);            // Wait 10ms (optional)
pinMode(A1,OUTPUT);   // Set A1 as an output.  This is connected to the 5v pin of the IR clip
digitalWrite(A1,HIGH);// Set to high to provide a 5v power supply to the IR clip
delay(1000);
}

void loop() {                    // Loop forever
hold = analogRead(0);            // Sample the A0 pin, which is connected to the IR output of the IR clip
if(hold < 200){                  // By default, A0 will read 5v/1023.  If pulled to 0v, then we'll see an analog representation of less than 200, and we'll perform the following tasks:
for(int i = 0 ; i < 700 ; i++){  // Do the following 700 times
hold = analogRead(0);            // Sample the A0 ADC pin and place the returned value into hold
IR[i] = hold;                    // Place the value from hold into the area in the IR list pointed to by 'i' which increments every time this loop executes.
// You could simplify things by doing this instead if you'd like:  IR[i] = analogRead(0);   
  }
  for(int i = 0 ; i < 700 ; i++){  // Once done, print the entire IR list to the serial monitor/plotter.  Make sure to open your serial plotter under the tools menu
  Serial.println(IR[i]);           // Print the value help in the IR address pointed to by 'i'
}
}
}  // This is the end of the loop.