Jeffrey, Laith, Ru’a, Sareeta

/*
AnalogReadSerial
Reads an analog input on pin 0, prints the result to the serial monitor.
Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground.

This example code is in the public domain.
*/

// the setup routine runs once when you press reset:
void setup() {
pinMode(9,OUTPUT);
// initialize serial communication at 9600 bits per second:
Serial.begin(9600);
}

// the loop routine runs over and over again forever:
void loop() {
// read the input on analog pin 0:
int sensorValue = analogRead(A0);
// print out the value you read:
int Value=map(sensorValue,0,1023,0,255);
Value=constrain(Value,0,255);
Serial.print(“value”);
Serial.println(Value);
analogWrite(9,255-Value);
Serial.println(sensorValue);
delay(1000); // delay in between reads for stability
}