hi all 
I am still pretty new to the whole arduino-thing - so pls. excuse my lack of experience, if this might be a result from it.
Since yesterday, I am getting some weired errors when I try to upload a sketch to the board (or more specific, to both boards that I have)
It seems that the code will be uploaded to the Board - and everything is just working as expected then - only, the update process will take unusually long - and is showing these kind of errors in the end
Sketch uses 3206 bytes (9%) of program storage space. Maximum is 32256 bytes.
Global variables use 154 bytes (7%) of dynamic memory, leaving 1894 bytes for local variables. Maximum is 2048 bytes.
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
Problem uploading to board. See https://support.arduino.cc/hc/en-us/sections/360003198300 for suggestions.
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00
This also happens, when I just upload an empty programm (just containing setup and loop)
The strange thing here is:
I have now tested the behave again and unplugged everything from the Board...
Then, uploading the Empty Code just has worked fine for both boards.
RIght now, I do have a small idea where this behave might come from...
In my code, I am using Pin 0 and 1 for an Input and a Touch-Sensor was connected to it.
is it possible, that having something connected to these Pins might break the update?
These pins are RX & TX ... so it might causing the issues during the upload and the boot up... it would just be nice to have an short feedback about this