I want to buy the module SODAQ UBEE R4 and N2 to use with Arduino, can I use this module without Sodaq Mbili or Autonomo but connected it directly to Arduino.
Does it work, or exist library?
The UBEE cannot be used stand alone, it needs a microcontroller board.
You can use the board with your own board. Keep in mind the bee module is 3.3v.
The UBEE uses the (x)bee pinout, you can find this pinout also on other boards.
You can find the pinout and libraries on this page: https://support.sodaq.com/Shields_and_Bees/ubee/