receiving data through serial

hi i am trying to receive data through a zigbee connected on a shield but everytime i power up the shield the power led keeps blinking i dont know if its normal and the data on the console is irregular what should i do :confused:

the data on the console is irregular what should i do

Give the data some ExLax.

You have an XBee getting data from some unknown device. The XBee has some unknown configuration. The XBee is connected in some undefined way to the Arduino. The Arduino is running some unknown code, dealing with unknown data producing unknown results.

Count how many times unknown appears up there, and think about whether it is reasonable, or not, given the number of unknowns, for us to make any guesses as to what is wrong.