Got my first Arduino Nano board (a clone), i'm testing it by blinking a LED.
I can sucessfully upload the code on the Arduino, but it appears there isn't any output (the LED is Always off, regardless of where it is placed from D2 to D9...), wiring is OK, ground is properly wired, LED is not damaged...)
Strangely, whenever i upload the Blink code with either pin 13 or led_builtin, the built-in LED works without any problem.
Can you provide the code you uploaded?
You can select all the code in the IDE and right click to copy it for the forum.
Also, did you change the usage of pin to output in pinMode before using digitalWrite on the pin to which the LED was connected?
Is the polarity of the 5mm-LED (direction in which it is plugged in) correct?
Is the resistance value appropriate?
Does the LED light up when the jumper wire stuck in the D13 is inserted into 5V?
Do you have a DMM?
Check the resistance value of the jumper wire to see if it is broken.
If all goes well, measure the voltage on the Nano's output pins.
If possible, measure directly from the soldered part of the header pin.
No, the LED didn't light up even when connected to the 5V pin... I guess there must something wrong in the header pin... what could be the reason? bad soldering from the factory?
Yes i have a DMM. I'm gonna check it out...
Sorry for the mess, guys... I've finally found the culprit: a faulty breadboard
Tried the same setup on another breadboard and everything work fine... pheww... i almost feared that my Arduino was somehow broken...
At least i want to thank you for your willingness to answer... I'm grateful