XbeePro shield blowing Xbee chip

Forum 2005-2010 (read only) Hardware Interfacing
1

Hi - I got an XbeePro shield for the Arduino and it seems to have blown the Xbee chip; I notice the Arduino (328) sends 5V up the din/dout lines into the Xbee. I don't think that is supported by an Xbee Series 2.
Anybody seen this problem before?

2

IIRC the XBee inputs are not 5V tolerant. You need to use a level translator or
resistor dividers or change the Arduino Vcc to 3.3V. If you change the Arduino
Vcc to 3.3V the maximum operating frequency is 12MHz.

I would do level translation with an SN74AHC14N. You power the '125 with 3.3V volts
and it has 5V tolerant inputs.

(* jcl *)

3

Thanks - it looks like this might be a cloned board (I'm going to visit the reseller tomorrow) and it's not providing what the usual Xbee shield provides. Beware of clones!