Procedure with Output

Schematic Diagram :

Program:

Connect the components as shown in above diagram and open Arduino IDE to paste the program.

int p1=4,p2=8,p3=11,p4=12,p5=10;
void setup()
{
Serial. begin(9600);
pinMode(4, OUTPUT);
pinMode(8, OUTPUT);
pinMode(11, OUTPUT);
pinMode(12, OUTPUT);
pinMode(10, OUTPUT);
}

void loop()
{
if(Serial.available())
{
char x = Serial.read();
Serial. println(x);

if (x == ‘A’)// important
{
digitalWrite(p1,HIGH);
digitalWrite(p2,HIGH);
digitalWrite(p3,HIGH);
digitalWrite(p4,HIGH);
digitalWrite(p5,HIGH);
}

else if (x == ‘a’)// important
{
digitalWrite(p1,LOW);
digitalWrite(p2,LOW);
digitalWrite(p3,LOW);
digitalWrite(p4,LOW);
digitalWrite(p5,LOW);
}
}
}