Usage: gatttool [OPTION...] Help Options: -h, --help Show help options --help-all Show all help options --help-gatt Show all GATT commands --help-params Show all Primary Services/Characteristics arguments --help-char-read-write Show all Characteristics Value/Descriptor Read/Write arguments Application Options: -i, --adapter=hciX Specify local adapter interface -b, --device=MAC Specify remote Bluetooth address -t, --addr-type=[public | random] Set LE address type. Default: public -m, --mtu=MTU Specify the MTU size -p, --psm=PSM Specify the PSM for GATT/ATT over BR/EDR -l, --sec-level=[low | medium | high] Set security level. Default: low -I, --interactive Use interactive mode

Usage: gatttool [OPTION...] Help Options: -h, --help Show help options --help-all Show all help options --help-gatt Show all GATT commands --help-params Show all Primary Services/Characteristics arguments --help-char-read-write Show all Characteristics Value/Descriptor Read/Write arguments Application Options: -i, --adapter=hciX Specify local adapter interface -b, --device=MAC Specify remote Bluetooth address -t, --addr-type=[public | random] Set LE address type. Default: public -m, --mtu=MTU Specify the MTU size -p, --psm=PSM Specify the PSM for GATT/ATT over BR/EDR -l, --sec-level=[low | medium | high] Set security level. Default: low -I, --interactive Use interactive mode