How to connect Arduino and Beaglebone I am newbie, I am afraid of doing harm and getting a burned-out Beagle Bone Black. I have soldered this SparkFun Logic Level Converter - Bi-Directional.    

I have several questions:


How can I check if my converter works correctly without connecting it to any board or at least only to an Arduino?
How should I connect all my schematic from bbb to converter and then to an Arduino. I have a bi-directional converter, BTW. Can someone draw a simple picture of how to connect?    


I would be grateful for any help.
The simplest method of connection is just to plug the Arduino into the BBB's USB socket.  That way there's no level conversion or anything needed - you can just open the serial port and communicate through that - what could be simpler?

You can even install avrdude on the BBB itself and upload code (HEX files) direct from the BBB, and the BBB supplies all the power.