Built in LED of arduino nano is working fine. But output pins are not working at all! No output voltage from any of the pins! I have soldered this for the first time but to be honest, I m pretty sure that this is not blown because microcontroller is working fine which I can see in Serial Monitor! What can be a problem?
LED is not blown, it is working with Arduino UNO perfectly, I have checked the basic things
If LED is not blown, microcontroller is not blown...
The soldering job looks very unreliable. You should try to and touch it up a bit to get a nice clean fillet (do some research to learn what that means). Add flux if you have it. It takes a bit of practice, and is more difficult if the solder is not of good quality or the soldering iron is not suitable.
Did you use the same connections on the Uno? LEDs have polarity, so if you connect the wires backwards, it won't turn on.
First of all, Sorry to not following rules n regulations, I will make this better.
Secondly, The same LED is working perfectly fine on 5v on arduino uno, so thats not a problem about resistor and limit current for sure,
Thirdly, code is not needed because it is connected directly to 3v3,
So looking at the current scenario, I will do the soldering again, and before soldering I will check it without any solder!
PS:- not a single pin is working, I have tried this using the code.
Have you tried swapping the LED around, it will only work with current going through it one way.
Even with 3V3 you need a current limit resistor.
You will be pulling excessive current from the 3V3 pin.
Thanks for bringing the miscategorization to my attention @RudolfAtRTC. I have now moved it to a more appropriate category.
I consume the forum via notifications, rather than by browsing categories, so I don't notice which category the topics are in. The best way to bring miscategorized topics to the attention of the moderators is by clicking the icon. The issue will then be resolved swiftly. I do try to do a clean out of the most frequently abused categories daily.
@aniketpaluskar, in the future please take a little time to find the most appropriate forum category when creating a topic. That will give you the best chance of getting help from the people knowledgeable in the subject matter.