- Get brew - https://brew.sh
- brew install blueutil
- Check devices around. Be sure to find your device:
blueutil --inquiry
This should show your device with mac address looking like this: "12-34-56-78-90-12"
- (Optional) connect and pair your device:
blueutil --connect <mac>
blueutil --pair <mac>
- edit script.sh and replace mac address with the one from output above
- Run it. Check the logfile (/tmp/watchlock). Be sure it works
- Automtor - New - Application - Run shell script. Paste content of script.sh there. Save to /Applications
- System Preferences - User & Groups - Login Items - Add