A lot of the hard work has been finished here:http://www.robotreviews.com/chat/viewtopic.php?f=4&t=13020&p=78493#p78493
It appears that the 4 byte ack packet has changed for the WCC from Roomba.
The register codes for WCC are loaded to the 13202 RF chip by a MC M9S8GT1A both from Freescale, now NXP.
I can't find a thing on this chip no. Anyone else?
I'll contact NXP when I'm ready to go farther.
The Adriano and NS RF could give some data, very limited. I could see the difference but can't tell you what it is at this point.
After identifying the MC we will see if we can read its data thru the serial port.
I think Ed opened a 700 series WCC. where is that thread?