Greetings,
i was working on a project with an arduino mega and some inductive sensors as inputs. The arduino was connected to pc via USB and the sensors were externally powered by a 24V voltage source. I connected the grounds together and all worked well. The problem was that there was alot going on at my desk and a cable from the 24V supply touched the arduino and fried the USB communication IC. I was wondering if there is another way of connecting the arduino to the PC via USB, without the communication IC?
Thank you in advance
No, you must use a usb to serial converter ic the atmega2560 can't be connected directly to usb. You could use other Arduino or buy a usb to serial converter to program the Arduino mega
okay will try, thank you for reply
"I was wondering if there is another way of connecting the arduino to the PC via USB, without the communication IC?"
You could use a USB to serial converter cord, but it would be RS232 inverted, so you would have to adapt to that. You would also need to find another power source for the arduino if that section of the onboard USB is damaged. Least hassle way is probably just get another board and use the damaged one as a slave board.
I am too working on it. We could add usb support to 328p using the v-usb support but we need a custom bootloader to upload code via usb. Check this out Micronucleus for atmega328p - Avrdude, stk500, Bootloader issues - Arduino Forum