How do I connect 2 arduinos via two NRF24L01

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C#

Arduino

wireless

Greetings,

I write a c# mini program that sends 0-1 signal to arduino1 via com port. I found some libraries about NRF24L01 but almost all of them works when you write some numbers or words on arduino software. All i need is turn on green and red leds on arduino2 through arduino 1. arduino 1 communicates with my software and according to software i want to turn on leds on arduino 2.

this is my working code when i work with single arduino;

#define BaudRate 9600

char incomingOption;

void setup()
{
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  Serial.begin(BaudRate);
}
void loop()
{
     incomingOption = Serial.read();
     switch(incomingOption){
        case '1':
          // Turn ON GREEN LED
          digitalWrite(2, HIGH);
          delay(5000);
          digitalWrite(2, LOW);
          
          break;
        case '0':
          // Turn ON RED LED
          digitalWrite(3, HIGH);
          delay(5000);
          digitalWrite(3, LOW);


          break;

          case 'OFF':
          digitalWrite(2, LOW);
          digitalWrite(3, LOW);
          break;
     }
}

how do i seperate this code for using nrf24L01 for 2 arduinos?