Hello, great wrok.
Now i am trying to do the same.
unfortunately if i send an command to run port 1 nothing is responding.
(yes there is an motor on port 1)
$ gatttool -b 88:6B:0F:77:68:CB -i hci0 --char-write --handle=0x001A --value=01000080
$ gatttool -b 88:6B:0F:77:68:CB -i hci0 --char-write --handle=0x0025 --value=01000080
do you have aan suggestion.?