Troubleshooting

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x4e
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x6f
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x6d
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x6f
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x72
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x65
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x61
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x64
An error occurred while uploading the sketch

Bien selectionner la board Arduino/Genuino Micro

avrdude: ser_open(): can't open device "/dev/ttyACM0": Device or resource busy

supprimer le paquet modemmanager qui monopolise ttyACM0 en croyant que c'est un modem