LED Blinking Patterns

Solving Approach

How do you plan to solve it?

 step 1:  Declare gpio pin For led AND PUSHBUTTON

step2 : initialize led as output AND PUSHBUTTON AS INPUT

step3: will write code for led  so led will blink for 2000ms AS PATTERN 1,2,3,4 using delay method.
 

Code

/*Paste your code here*/


// C++ code
//

#define pushbutton 9
int LED[4]={2, 3, 4, 5};

void setup()
{
  pinMode(LED[4], OUTPUT);
  pinMode(pushbutton, INPUT);

 }
void Pattrn1(){
  for(int i=0;i<4; i++){
  digitalWrite(LED[i],HIGH);
  }
   for(int i=0;i<4; i++){
  digitalWrite(LED[i],LOW);
  }
}
void Pattrn2(){
digitalWrite(LED[0],HIGH);
  digitalWrite(LED[1],LOW);
  digitalWrite(LED[2],HIGH);
  digitalWrite(LED[3],LOW);
}
void Pattrn3(){
  digitalWrite(LED[0],HIGH);
  digitalWrite(LED[1],LOW);
  digitalWrite(LED[2],LOW);
  digitalWrite(LED[3],LOW);
  delay(100);
   digitalWrite(LED[0],LOW);
  digitalWrite(LED[1],HIGH);
  digitalWrite(LED[2],LOW);
  digitalWrite(LED[3],LOW);
  delay(100);
   digitalWrite(LED[0],LOW);
  digitalWrite(LED[1],LOW);
  digitalWrite(LED[2],HIGH);
  digitalWrite(LED[3],LOW);
   delay(100);
   digitalWrite(LED[0],LOW);
  digitalWrite(LED[1],LOW);
  digitalWrite(LED[2],LOW);
  digitalWrite(LED[3],HIGH);
   delay(100);
}


void Pattrn4(){
 
  digitalWrite(LED[0],HIGH);
  digitalWrite(LED[1],HIGH);
  digitalWrite(LED[2],LOW);
  digitalWrite(LED[3],LOW);
  delay(400);
  digitalWrite(LED[0],LOW);
  digitalWrite(LED[1],LOW);
  digitalWrite(LED[2],HIGH);
  digitalWrite(LED[3],HIGH);
  delay(400);
}

void loop()
{
  int BUTTONSTATE =digitalRead(pushbutton);
   
  if( BUTTONSTATE== HIGH){
      Pattrn1();
      delay(2000);
      Pattrn2();
      delay(2000);// Wait for 1000 millisecond(s)
      Pattrn3();
      delay(2000);
      Pattrn4();
      delay(2000); // Wait for 1000 millisecond(s)
  }}

Output

Video

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