Digi International Inc XBEEPRO2 Manual Do Utilizador

Example: Suppose an IO sample is received with analog and digital IO, from a remote with a 64-
bit address of 0x0013A200 40522BAA and a 16-bit address of 0x7D84. If pin AD1/DIO1 is enabled 
as an analog input, AD2/DIO2 and DIO4 are enabled as a digital inputs (currently high), and AD3/
DIO3 is enabled as a digital output (low) the IO sample is shown in the API example in the table 
above. 

Frame Type: 0x94

When the module receives a sensor sample (from a Digi 1-wire sensor adapter), it is sent out the UART using 
this message type (when AO=0).

Example: Suppose a 1-wire sensor sample is received from a device with a 64-bit address of 
0x0013A200 40522BAA and a 16-bit address of 0xDD6C. If the sensor sample was taken from a 
1-wire humidity sensor, the API frame could look like this (if AO=0):

For convenience, let's label the A/D and temperature readings as AD0, AD1, AD2, AD3, and T. Using the data in 
this example:

AD0 = 0x0002

AD1 = 0x00CE 

AD2 = 0x00EA

AD3 = 0x0052 

0 0x7E

MSB 1 0x00

Number of bytes between the length and the checksum

LSB 2 0x17

3 0x94

MSB 4 0x00

64-bit address of sender

5 0x13
6 0xA2
7 0x00
8 0x40
9 0x52

10 0x2B

LSB 11 0xAA

MSB 12 0xDD

16-bit address of sender.

LSB 13 0x6C

14 0x01

0x01 - Packet Acknowledged
0x02 - Packet was a broadcast packet

15 0x03

0x01 = A/D Sensor Read
0x02 = Temperature Sensor Read
0x60 = Water present (module CD pin low)

16 0x00

Indicates a two-byte value for each of four A/D sensors
(A, B, C, D) 
Set to 0xFFFFFFFFFFFFFFFF if no A/Ds are found.

17 0x02
18 0x00
19 0xCE
20 0x00
21 0xEA
22 0x00
23 0x52

24 0x01

Indicates the two-byte value read from a digital 
thermometer if present. Set to 0xFFFF if not found.

25 0x6A

26 0x8B

0xFF - the 0x8 bit sum of bytes from offset 3 to this byte.