//PD0 = d7
//PD1 = d6
//PD2 = d5
//PD4 = d4

//PB4 = rs
//Rw = GNd
//PB3 = en

//first make port as output
void lcd_command(unsigned char cmd)
{
  

}
 unsigned char cmd;
void setup() {
  DDRB |= (1<<PB4) | (1<<PB3); //     port b set as output
  DDRD |= 0xff;                //     port d set as output
 cmd = 0x38;
  //PORTD |= cmd>>4;
  PORTD = (PORTD & 0xF0) | (cmd >>4 & 0x0f);
  PORTB &= ~(1<<(PB4));
  PORTB |= (1<<PB3);
  _delay_ms(10);
  PORTB &= ~(1<<PB4);
  
  PORTD  = cmd & 0x0f;
  PORTB &= ~(1<<(PB4));
  PORTB |= (1<<PB3);
  _delay_ms(10);
  PORTB &= ~(1<<PB4);

 
 cmd = 0x06;
  //PORTD |= cmd>>4;
  PORTD = (PORTD & 0xF0) | (cmd >>4 & 0x0f);
  PORTB &= ~(1<<(PB4));
  PORTB |= (1<<PB3);
  _delay_ms(10);
  PORTB &= ~(1<<PB4);
  
  PORTD  = cmd & 0x0f;
  PORTB &= ~(1<<(PB4));
  PORTB |= (1<<PB3);
  _delay_ms(10);
  PORTB &= ~(1<<PB4);
  cmd = 0x0c;
  //PORTD |= cmd>>4;
  PORTD = (PORTD & 0xF0) | (cmd >>4 & 0x0f);
  PORTB &= ~(1<<(PB4));
  PORTB |= (1<<PB3);
  _delay_ms(10);
  PORTB &= ~(1<<PB4);
  
  PORTD  = cmd & 0x0f;
  PORTB &= ~(1<<(PB4));
  PORTB |= (1<<PB3);
  _delay_ms(10);
  PORTB &= ~(1<<PB4);
  
   cmd = 0x01;
  //PORTD |= cmd>>4;
  PORTD = (PORTD & 0xF0) | (cmd >>4 & 0x0f);
  PORTB &= ~(1<<(PB4));
  PORTB |= (1<<PB3);
  _delay_ms(10);
  PORTB &= ~(1<<PB4);
  
  PORTD  = cmd & 0x0f;
  PORTB &= ~(1<<(PB4));
  PORTB |= (1<<PB3);
  _delay_ms(10);
  PORTB &= ~(1<<PB4);
}


void loop()
{

}