Connect to the bluetooth serial port in linux

From time to time I use my bluetoth module HC-05 to communicate with microcontroller. Every time I have the same problem because I don't remember how to do that. Short receipe working for me (at least for openSUSE):

 sudo bluetoothctl  
 power on  
 agent on  
 scan on  
 pair <MAC>  

Then:

 sudo killall rfcomm  
 sudo rfcomm connect /dev/rfcomm0 <MAC> 1  

/dev/rfcomm0 is ready to use now.

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