I have one of these...
http://uk.farnell.com/jsp/displayProduct.jsp?sku=1329311&CMP=KNC-GUK-FUK-GEN-LISTINGS&gross_price=true
... would this work to access the device via the pins? Am I correct in thinking that I just connect GND -> GND, RX -> TX and TX -> RX and ignore the VDD?