Errors:
avrdude: ser_open(): can't open device "/dev/ttyUSB0": No such file or directory
-> USB cable to arduino not plugged in.


avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00
->
1) unplug robot USB cable
2) kill Aruduino IDE program
3) plug in robot USB cable
4) make sure you got a /dev/ttyACM0 or /dev/ttyUSB0 device created
5) start up Arduino IDE program
6) Hopefully things work now.

