The PICAXE Connect board lets you hook up a Maxstream XBee module or LocSense GPS module to your PICAXE or (using a MAX3232 chip) a computer.
The PICAXE 'AXE210 Connect Board' is designed to let you connect your PICAXE to a XBee XBE001 Zigbee module, or to a LocSense LS040EB-3V / LS41EB-3V GPS module. It's a multi-talented board, letting you connect:
To use this module with a computer via the PICAXE programming cable, you insert a MAX3232 chip (included!) into the board, otherwise, plug a PICAXE into it (but never both at the same time!).