Help with DFPlayer

Projects General Guidance
1 
    
    String A = Serial.readString();
    
    if(A == "On") {
        digitalWrite(LED_BUILTIN, HIGH);
        myDFPlayer.loop(1); 
        delay(10);
      
    }

I want to delay code.
How to?

2

Delay takes an argument in ms, so here you wait 10ms… that goes fast
If you want 10 seconds then use 10000

3

Can delays be used with loops?

4

Sure, but be careful what you wish for…

Read up on millis() timing. It will serve you well in the future.

5

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