How to interface XBee with atmega 32?

i m thinking of doing a project that includes serial communication between Xbee module and atmega32 through USART. through some web browsing i found out that these two devices have different logic levels and require logic level converter. can anyone share me a link that has an example of how wireless communicaiton is done between Xbee and atmega32 with proper circuit diagram!?

Thank you!!