Serial python package required! pyserial -> python-serial in ubuntu 1. ls /dev 2. if it's linux look for ttyACMX, it it's MAC look for tty.usbmodemXXX 3. write it into bluetooth.py (default is ttyACM0 for linux, and tty.usbmodem471 for MAC-Darwin) 4. start with "python bluetooth.py" 5. type d for discovery 6. type e for establishing the link 7. type 1 for activating all notifications 8. enjoy and type 2 then t for terminating the link 2 deactivates the notifications c 192A discovers the characteristic with UUID 0x2A19 r 3300 reads the value at the handle 0x0033 w 3300 1 writes 1 at the handle 0x0033