Computer Serial Port broken

Other Hardware General Electronics
1

Hi,

I'm working on a project using 6 Arduino Mega with a computer, I've broken a serial port of my computer, my serial port isn't able to detect arduinos connected with it and to power a smartphone, but arduinos connected to this port are powered and the led 13 stays on.

I would like to know if the arduino can be the problem and if you have any suggestions on the cause of the problem, and maybe if there is a way to fix this serial port..

Thank you for your time and help.

2

Do you happen to mean a USB port?

Have you tried plugging in a flash drive to see if it can be accessed?

3

I would like to know if you have any idea of the cause of this problem,

Without schematics of what you are doing we can't tell what you are doing wrong.

maybe the use of timers 1 and 2 can be the source of the problem?

Simply no.

seem to have bootloader problems sooner or later:

That would suggest you are doing something wrong on the hardware side. Maybe putting too much voltage on something.

receive message timeout

This means the computer and Arduino are not communicating. Possible causes:-

  1. Picking the wrong Arduino in the IDE's menu.
  2. The Arduino's serial port is broken.
  3. The Arduino's USB to serial port chip is broken.

Don't Cross post:- My arduino mega cards all seem to have bootloader errors from using this code.. - Avrdude, stk500, Bootloader issues - Arduino Forum