Datasheet

Jon Waddington
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ATID is the PAN ID address which is, essentially, the address of the network. The router
and coordinator XBEE modules share this address to allow for remote communications.
ATDH and ATDL contain the corresponding serial number (ATSH and ATSL) of the XBEE
module which the information is to be sent to. ATD0 is used to change the setting of the
AD0/DIO0 pin. Changing this value to ‘2’ informs the XBEE that the pin is to be used as
an analogue input. ATIR is used to set the sample rate of the input in milliseconds.
0xFAO is equivalent to 4000ms so the router XBEE samples the analogue input of the
AD0 pin every four seconds and transmits it to the device sharing the same PAN ID and
with the serial number ‘13A200403D8E44’ [35].
Figure 3.6.1.2 shows the serial out (DOUT) pin of the receiving XBEE module connected
to pin 6 of the Propeller. This Module is loaded with the coordinator firmware which
means that it controls the network.
The table below shows the relevant settings of the coordinator XBEE module’s
parameters.
Figure 3.6.1.2. Schematic of the XBEE Receiver