I have a problem with uploading my code. when i connect my arduino uno to PC (Win10) , the built in led (which should blink) is not blinking. and when i press the reset button , the led is not blinking too. and i found different errors with every time i upload any code. what is that mean? Is my board damaged?!
Hassan_Kamel:
I have a problem with uploading my code. when i connect my arduino uno to PC (Win10) , the built in led (which should blink) is not blinking. and when i press the reset button , the led is not blinking too. and i found different errors with every time i upload any code. what is that mean? Is my board damaged?!
If the led does not blink (a few short flashes) when you press and release the reset button, either the 328P processor is damaged or the boot loader is missing. If you have a programmer or another Arduino, you can try to burn the boot loader.
Was this a problem from day one? If so, ship it back to the seller. If the problem occurred at a later stage, what did you do to it?
Which version of IDE? 1.8.12?
Which Arduino? Real one (with 16U2 chip near the USB connector)?
Or something else? And if so, do you have the driver for the chip next to the USB connector?