Datasheet

# Initialise the USB dongle

$ sudo hciconfig hci0 up

# Scan for the UART BLE device

$ sudo hcitool lescan

D6:4E:06:4F:72:86 UART

# Start gatttool, pointing to the UART device found above

$ sudo gatttool -b D6:4E:06:4F:72:86 -I -t random --sec-level=high

[D6:4E:06:4F:72:86][LE]> connect

Attempting to connect to D6:4E:06:4F:72:86

Connection successful