XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 94
Device Request
Frame Type: 0xB9
This frame type is sent out the serial port when the XBee module receives a valid device request
from the iDigi server.
Frame Fields Offset Example Description
API Packet
Start
Delimiter
0 0x7E
Length
MSB 1 0x00
Number of bytes between the length and the checksum
LSB 2 0x26
API Frame
Specific
Data
API Frame
Identifier
3 0xB9
Device
Request ID
4 0x00 Identifies the device request. (0 has no special meaning.)
Flags 5-6 0x0003
Bit 0 first data
Bit 1 last data
Bits 2-15 are reserved
Target Length 7 0x08 Length of target string
Target String 8-15 myTarget String required by the host side, e.g. a file name.
Data 16-40
A message
for serial
Checksum 41 0xC3 0xFF minus the 8 bit sum of bytes 3-40 of this frame
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