Gesture Controlled Wheelchair

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
RF24 radio(9, 10); // CE, CSN
const byte address[6] = "00001";
void setup() {
 pinMode(6,OUTPUT);
 pinMode(7,OUTPUT);
 pinMode(5,OUTPUT);
 pinMode(4,OUTPUT);
Serial.begin(9600);
radio.begin();
radio.openReadingPipe(0, address);   //Setting the address at which we will receive the data
radio.setPALevel(RF24_PA_MIN);       //You can set this as minimum or maximum depending on the distance between the transmitter and receiver.
radio.startListening();              //This sets the module as receiver
}
void loop()
{

char text = "";                 //Saving the incoming data
radio.read(&text, sizeof(text));    //Reading the data
Serial.println(text);
   switch(text)
    {
    case 'F':  
      forward();
      break;
    case 'B':  
      back();
      break; 
    case 'L':  
      left();
      break;
    case 'R':
      right();
      break;
    case 'S':
      Stop();
      break;
  /*  case 'O':  
      Fleft();
      break;
    case 'N':
      Fright();
      break;
    case 'P':  
      Bleft();
      break;
    case 'M':
      Bright();
      break;
          */
    
    }


delay(20);



}


void forward()
{
 
  digitalWrite(6,HIGH);
  digitalWrite(7,LOW);
  
  
 
}
void back()
{
  digitalWrite(6,LOW);
  digitalWrite(7,HIGH); 

}


void left()
{
  digitalWrite(4,LOW);
  digitalWrite(5,HIGH); 
}
void right()
{
  digitalWrite(5,LOW);
  digitalWrite(4,HIGH);

  
}
void Stop()
{
  digitalWrite(6,LOW);
  digitalWrite(7,LOW);
  digitalWrite(4,LOW);
  digitalWrite(5,LOW);
}
/*
void Fright()
{
  right();
  forward();
  
}
void Fleft()
{
  left();
  forward();
}

void Bleft()
{
  left();
  back();
}
void Bright()
{
  right();
  back();
}
*/