Basic NR24RFL01 and arduino" error message"

Projects Programming
9

Either you or the original auther added a comment to the if and as a result everything that came after it is now considered a comment andignored

 if (ReceivedMessage[0] == 111) // Indicates switch is pressed {   digitalWrite(LED_PIN, HIGH); } else {   digitalWrite(LED_PIN, LOW); } delay(2);
                                ^                              ^
                                |                              |
                                somebody added this            the code following is now part of the comment and ignored

This would be the fix

void loop(void)
{
  while (radio.available())
  {
    radio.read(ReceivedMessage, 1); // Read information from the NRF24L01
    if (ReceivedMessage[0] == 111) // Indicates switch is pressed
    {
      digitalWrite(LED_PIN, HIGH);
    }
    else
    {
      digitalWrite(LED_PIN, LOW);
    }
    delay(2);
  }
}

Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advise on) your project :wink: See About the IDE 1.x category.