Remote-controlled Bed for Individuals who are Bedridden

#include <IRremote.h>

const byte IR_RECEIVE_PIN = 4;

#define LeftWheelForwardTerminal1 5
#define LeftWheelForwardTerminal2 6
#define LeftWheelBackwardTerminal1 7
#define LeftWheelBackwardTerminal2 8

#define RightWheelForwardTerminal1 9
#define RightWheelForwardTerminal2 10
#define RightWheelBackwardTerminal1 11
#define RightWheelBackwardTerminal2 12 

void setup() 
{
  pinMode(LeftWheelForwardTerminal1,OUTPUT);
  pinMode(LeftWheelForwardTerminal2,OUTPUT);
  pinMode(LeftWheelBackwardTerminal1,OUTPUT);
  pinMode(LeftWheelBackwardTerminal2,OUTPUT);
  
  pinMode(RightWheelForwardTerminal1,OUTPUT);
  pinMode(RightWheelForwardTerminal2,OUTPUT);
  pinMode(RightWheelBackwardTerminal1,OUTPUT);
  pinMode(RightWheelBackwardTerminal2,OUTPUT);

  digitalWrite(RightWheelForwardTerminal1,LOW);
  digitalWrite(RightWheelForwardTerminal2,LOW);  
  digitalWrite(RightWheelBackwardTerminal1,LOW);
  digitalWrite(RightWheelBackwardTerminal2,LOW);
  
  digitalWrite(LeftWheelForwardTerminal1,LOW);
  digitalWrite(LeftWheelForwardTerminal2,LOW);
  digitalWrite(LeftWheelBackwardTerminal1,LOW);
  digitalWrite(LeftWheelBackwardTerminal2,LOW);
  
  IrReceiver.begin(IR_RECEIVE_PIN, ENABLE_LED_FEEDBACK);
}

void loop() 
{
  if (IrReceiver.decode())
  {
      IrReceiver.resume();
 
      if(IrReceiver.decodedIRData.command==78) //Forward
      {
       Serial.println("Moving forward");

       digitalWrite(LeftWheelBackwardTerminal1,LOW);
       digitalWrite(LeftWheelBackwardTerminal2,LOW);

       digitalWrite(RightWheelBackwardTerminal1,LOW);
       digitalWrite(RightWheelBackwardTerminal2,LOW);
       
       digitalWrite(LeftWheelForwardTerminal1,HIGH);
       digitalWrite(LeftWheelForwardTerminal2,HIGH);
    
       digitalWrite(RightWheelForwardTerminal1,HIGH);
       digitalWrite(RightWheelForwardTerminal2,HIGH);
      }
    
      else if(IrReceiver.decodedIRData.command==4) //Backward
      {
       Serial.println("Moving backward");
   
       digitalWrite(LeftWheelForwardTerminal1,LOW);
       digitalWrite(LeftWheelForwardTerminal2,LOW);
    
       digitalWrite(RightWheelForwardTerminal1,LOW);
       digitalWrite(RightWheelForwardTerminal2,LOW);
       
       digitalWrite(LeftWheelBackwardTerminal1,HIGH);
       digitalWrite(LeftWheelBackwardTerminal2,HIGH);
    
       digitalWrite(RightWheelBackwardTerminal1,HIGH);
       digitalWrite(RightWheelBackwardTerminal2,HIGH);
      }
    
      else if(IrReceiver.decodedIRData.command==6) //Left
      {
       Serial.println("Turning left");
    
       digitalWrite(RightWheelForwardTerminal1,LOW);
       digitalWrite(RightWheelForwardTerminal2,LOW); 
       digitalWrite(RightWheelBackwardTerminal1,LOW);
       digitalWrite(RightWheelBackwardTerminal2,LOW);
     
       digitalWrite(LeftWheelForwardTerminal1,HIGH);
       digitalWrite(LeftWheelForwardTerminal2,HIGH);
      }
    
      else if(IrReceiver.decodedIRData.command==7) //Right
      {
       Serial.println("Turning right");
    
       digitalWrite(LeftWheelForwardTerminal1,LOW);
       digitalWrite(LeftWheelForwardTerminal2,LOW);
       digitalWrite(LeftWheelBackwardTerminal1,LOW);
       digitalWrite(LeftWheelBackwardTerminal2,LOW);
    
       digitalWrite(RightWheelForwardTerminal1,HIGH);
       digitalWrite(RightWheelForwardTerminal2,HIGH);    
      }

      else if(IrReceiver.decodedIRData.command==5) // Brake
      {
       Serial.println(" On brake");
    
       digitalWrite(LeftWheelForwardTerminal1,LOW);
       digitalWrite(LeftWheelForwardTerminal2,LOW);
       digitalWrite(LeftWheelBackwardTerminal1,LOW);
       digitalWrite(LeftWheelBackwardTerminal2,LOW);
    
       digitalWrite(RightWheelForwardTerminal1,LOW);
       digitalWrite(RightWheelForwardTerminal2,LOW);
       digitalWrite(RightWheelBackwardTerminal1,LOW);
       digitalWrite(RightWheelBackwardTerminal2,LOW);    
      }
   } 
}