switch bot

$ sudo gatttool -b C9:12:2F:D7:A1:D8 -t random --char-write-req -a 0x0016 -n 570100
$ sudo gatttool -b C9:12:2F:D7:A1:D8 -t random --char-write-req -a 0x0016 -n 570101
$ sudo gatttool -b C9:12:2F:D7:A1:D8 -t random --char-write-req -a 0x0016 -n 570102