Ed (Energy Detect); Db Command; Serial Interfacing Commands; Bd (Uart Baud Rate) - Digi XBee 3 ZigBee User Manual

AT commands
If using API Mode, no <CR>'s are returned and a separate response frame is generated for each
PanDescriptor. For more information, see
scan, only one carriage return is printed.
Parameter range
N/A
Default
N/A

ED (Energy Detect)

Measures the detected energy on each IEEE 802.15.4 channel.
In Transparent mode (AP=0), a comma follows each value with the list ending with a carriage return.
The values returned reflect the detected energy level in units of -dBm. Convert an ED response of 49,
3A, and so on, to decimal to become -73 dBm, -58 dBm, and so on.
Parameter range
1 - 0xFF (x1 ms)
Default
0x10 (16 ms)

DB command

This command reports the received signal strength of the last received RF data packet or APS
acknowledgment. The DB command only indicates the signal strength of the last hop. It does not
provide an accurate quality measurement for a multihop link.
The DB command value is measured in -dBm. For example, if DB returns 0x50, then the RSSI of the last
packet received was -80 dBm. Set DB to 0 to clear the current value.
Parameter range
0 - 0xFF
Default
N/A

Serial interfacing commands

The following commands affect the UART serial interface.

BD (UART Baud Rate)

This command configures the serial interface baud rate for communication between the UART port of
the device and the host.
The device interprets any value between 0x12C and 0x0EC400 as a custom baud rate. Custom baud
rates are not guaranteed and the device attempts to find the closest achievable baud rate. After
setting a non-standard baud rate, query BD to find the actual operating baud rate before applying
changes.
The following table provides some example BD parameters sent versus the parameters stored.
Digi XBee® 3 Zigbee® RF Module
Operate in API mode. If no PANs are discovered during the
Serial interfacing commands
199