Hi mates, I have trouble, I can't find corrispondence from pin declared on Arduino IDE and hardware pin on board.
Are you so kind to draw it on the picture? (so there will not be possible misunderstandigs), thank you a lot!
For example i need to know which is:
pinMode(13,OUTPUT);
Please also tell me which is the corrispondent output pin of pinMode(LED_BUILTIN,OUTPUT);
I see that LED_BUILTIN is phisicalli connected to pin D9/TX (what is written on the board), but if I write on pin9 (digitalWrite(9,HIGH); for example) I don't have the seme effect than digitalWrite(LED_BUILTIN,HIGH);
