Hi,
following this specifications we can see on the interface the D5, D6 and I2C grove sensor could be used.
http://www.seeedstudio.com/wiki/index.php?title=Bee_Stem
http://www.seeedstudio.com/depot/Grove-XBee-Carrier-p-905.html?cPath=115
Then how could we know wich one are D5, D6 or I2C ?
sincerely thanks and have a nice day,
Miguipda 