DIGI 802.15.4 XBee 3 RF Module User Guide
- June 3, 2024
- DIGI
Table of Contents
802.15.4 XBee 3 RF Module DigiMesh
User Guide
Introduction
This guide will assist you with migration from the Digi XBee® 3 module to the
Digi XBee RR module. While basic functionality and communication are similar
and compatible, there are some differences to consider, which we describe in
this guide, along with other migration considerations.
MicroPython
The XBee RR RF module does not support MicroPython mode.
Bluetooth
Bluetooth® Low Energy (BLE) is an RF protocol that enables you to connect your
XBee device to another device Both devices must have BLE enabled. For example,
you can use your cellphone to connect to your XBee device, and then from your
phone, you can configure and program the device.
The XBee RR RF module offers basic BLE support. The XBee RR RF module supports
acting as a peripheral device as described in getting started with BLE and
BLE
reference.
BLE on the XBee RR is useful for configuring XBee RR modules remotely via an
application. Scanning for and connecting to other peripheral devices is not
available (MicroPython is needed).
Here’s a list of some of the additional things that you can do with Digi XBee
RR and BLE:
- Securely configure an XBee RR from a phone or other BLE-capable device.
- Send advertisements from the XBee RR.
- Send custom configuration or data to a host processor using user data relay frames.
- Securely configure one XBee RR from another XBee RR or XBee 3. Note: this requires the use of a host processor.
- Securely send data between XBee RR modems. Note: this requires the use of a host processor.
- Securely bond to the XBee RR GATT server from an external device.
To utilize BLE on the Digi XBee RR, the XBee firmware provides the following mechanisms:
- AT commands (enable, XBee API security configuration, custom advertisement name)
- User data relay frames (BLE to serial)
The following table maps common use cases and the different mechanisms that support them. Note that most of these mechanisms are not mutually exclusive and can be combined to enhance your applications:
Use case| AT commands| Use data relay frames with the host
processor
---|---|---
AT configuration| ✓| ✓
XBee RR to XBee RR/XBee 3 configuration| | ✓
XBee RR to XBee RR/XBee 3 data| | ✓
Enable/disable| ✓|
Scan and send advertisements| ✓|
Send custom advertisements| ✓ *|
File system
The file system works mostly the same on the XBee RR RF module as it does on
the XBee 3 except that there is no OTA support — its access is limited to the
serial port only. Without MicroPython support, there is currently no use case
for the file system on the XBee RR RF module. Almost any other device would be
more useful for storing files.
IO and PWM
The DIO10 (PWM0/RSSI indicator) and DIO11 (PWM1) lines are not available on
the XBee RR RF module. This means that the P0 and P1 commands are unavailable,
as well as any other configuration related to those two lines. Additionally,
DIO10 and DIO11 are tied together with a 4.7 kΩ resistor. The internal
reference voltage used by the XBee RR RF module is different from that of the
XBee 3. This affects the calculation used to determine a voltage from an ADC
reading.
Value of AV parameter| XBee RR analog reference| XBee 3 analog
reference
---|---|---
0| 1.21 V| 1.25 V
1| 2.42 V| 2.5 V
3| VCC| VCC
Compatibility options
The Legacy LQI calculation is now the only option for LQI compatibility. This
means that either setting C8 bit 4 or leaving it as default will result in the
same behavior. Digi does not recommend setting C8 bit 4, as Digi can’t
guarantee that the bit won’t have different functionality in the future.
Power consumption
There are variances in the power consumption specifications between the XBee 3
and XBee RR. See the Hardware specifications table for details.
OTA updates
XBee RR firmware images are not compatible with XBee 3 firmware images, and
vice-versa. OTA update servers should make sure to use the correct image for
the radio they are updating, or the image will be rejected.
An OTA image can be identified by the Image Type field in the OTA file header.
The value should be sent by the server in the Image Notify command and must
match the value reported by the target device in the Query Next Image Request
(see Create an OTA update server). The image type values for XBee RR and XBee
3 are:
Type | Value |
---|---|
XBee 3 | 0x0000 |
XBee RR | 0x0001 |
Configuration
Using Digi® XCTU, you can load the appropriate firmware to fit your current needs within the regulatory guidance of the region of deployment. See the following user guides for more information:
The ZigBee, DigiMesh®, and 802.15.4 protocols all run on the same XBee RR
hardware and can be flashed on the modules as needed.
Boot time
The boot time of the XBee RR module may be different than the XBee 3 module.
Boot times are subject to change between firmware loads and are not
guaranteed. Applications should make the necessary checks of Clear to Send
(CTS) or other pin signals to determine the readiness of the module.
Hardware specifications
See the XBee RR RF Module Hardware Reference
Manual for
more detail.
Low-power (non-PRO) variant
Considerations | XBee 3 | XBee RR | Comments |
---|---|---|---|
Indoor/Urban range | Up to 60 m (200 ft) | Up to 60 m (200 ft) | Same |
Outdoor RF line-of-sight | Up to 1200 m (4000 ft) | Up to 1200 m (4000 ft) | Same |
Transmit power output | 6.3 mW (+8 dBm) | 6.3 mW (+8 dBm) Channel 26 max power | |
is +3 dBm | Similar | ||
Receive sensitivity | -103 dBm | -103 dBm | Same |
Operating current (transmit) | 40 mA @ +3.3 V, + 8 dBm | 32 mA at 3.3 V, +8 dBm |
Improved
Operating current (receive)| 17 mA| 14 mA| Improved
Sleep current| 2 uA| 8 uA| Increased
Supply voltage| 2.1 – 3.6 V| 1.71 – 3.8 V| Improved
GPIO| | DIO 10 and 11 are not supported| Decreased
FCC ID| MCQ-XBEE3| MCQ-XBRR| You will need to change the label on the end
product to show the appropriate regulatory ID
Industry Canada (IC) ID| 1846A-XBEE3| 1846A-XBRR|
High-power (PRO) variant
Considerations | XBee 3 PRO | Digi XBee Pro RR | Comments |
---|---|---|---|
Indoor/Urban range | Up to 90 m (300 ft) | Up to 90 m (300 ft) | Same |
Outdoor RF line-of-sight | Up to 3200 m (2 mi) | Up to 3200 m (2 mi) | Same |
Transmit power output | 79 mW (+19 dBm) | ||
Channel 26 max power is +8 dBm | 79 mW (+19 dBm) | ||
Channel 26 max power is +3 dBm | Similar | ||
Receive sensitivity | -103 dBm | -103 dBm | Same |
Operating current (transmit) | 135 mA @ +3.3 V, +19 dBm | 193 mA @ 3.3 V, +19 | |
dBm | Increased | ||
Operating current (receive) | 17 mA | 14 mA | Improved |
Sleep current | 2 uA | 8 uA | Increased |
Supply voltage | 2.1 – 3.6 V | 1.71 – 3.8 V | Larger voltage range |
GPIO | DIO 10 and 11 are not supported | Decreased | |
FCC ID | MCQ-XBEE3 | MCQ-XBPRR | You will need to change the label on the end |
product to show the appropriate regulatory ID
Industry Canada (IC) ID| 1846A-XBEE3| 1846A-XBPRR|
XBee RR part number migration
The following table shows which Digi XBee RR module to migrate to depending on
which XBee 3/ XBee 3-PRO module you are currently using.
For the latest list of available XBee RR modules, see below:
Part number migration
Current part number | Description | Migrate to |
---|---|---|
XB3-24ACM | XBee RR PRO, 2.4 GHz, 802.15.4, Chip Ant, MMT | XBRR-24ACM |
XB3-24ACM-J | XBee RR, 2.4 GHz, 802.15.4, Chip Ant, MMT | XBRR-24ACM-J |
XB3-24DMUM | XBee RR PRO, 2.4 GHz, DigiMesh, U.FL Ant, MMT | XBRR-24DMUM |
XB3-24DMRM | XBee RR PRO, 2.4 GHz, DigiMesh, RF Pad Ant, MMT | XBRR-24DMRM |
XB3-24Z8CM | XBee RR PRO, 2.4 GHz, Zigbee, Chip Ant, MMT | XBRR-24Z8CM |
XB3-24Z8CM-J | XBee RR, 2.4 GHz, Zigbee, Chip Ant, MMT | XBRR-24Z8CM-J |
XB3-24Z8PS | XBee RR PRO, 2.4 GHz, Zigbee, PCB Ant, SMT | XBRR-24Z8PS |
XB3-24Z8PS-J | XBee RR, 2.4 GHz, Zigbee, PCB Ant, SMT | XBRR-24Z8PS-J |
XB3-24Z8PT | XBee RR PRO, 2.4 GHz, Zigbee, PCB Ant, | XBRR-24Z8PT |
XB3-24Z8PT-J | XBee RR, 2.4 GHz, Zigbee, PCB Ant, | XBRR-24Z8PT-J |
XB3-24Z8RM | XBee RR PRO, 2.4 GHz, Zigbee, RF Pad Ant, MMT | XBRR-24Z8RM |
XB3-24Z8RM-J | XBee RR, 2.4 GHz, Zigbee, RF Pad Ant, MMT | XBRR-24Z8RM-J |
XB3-24Z8RM-R15 | XBee RR PRO, 2.4 GHz, Zigbee, RF Pad Ant, MMT, T&R on 15″ | |
reel | XBRR-24Z8RM- R15 | |
XB3-24Z8ST | XBee RR PRO, 2.4 GHz, Zigbee, SMA Ant, Through-hole | XBRR-24Z8ST |
XB3-24Z8ST-J | XBee RR, 2.4 GHz, Zigbee, SMA Ant, Through-hole | XBRR-24Z8ST-J |
XB3-24Z8UM | XBee RR PRO, 2.4 GHz, Zigbee, U.FL Ant, MMT | XBRR-24Z8UM |
XB3-24Z8UM-J | XBee RR, 2.4 GHz, Zigbee, U.FL Ant, MMT | XBRR-24Z8UM-J |
XB3-24Z8US | XBee RR PRO, 2.4 GHz, Zigbee, U.FL Ant, SMT | XBRR-24Z8US |
XB3-24Z8US-J | XBee RR, 2.4 GHz, Zigbee, U.FL Ant, SMT | XBRR-24Z8US-J |
XB3-24Z8UT | XBee RR PRO, 2.4 GHz, Zigbee, U.FL Ant, Through-hole | XBRR-24Z8UT |
XB3-24Z8UT-J | XBee RR, 2.4 GHz, Zigbee, U.FL Ant, Through-hole | XBRR-24Z8UT-J |
90002536 B
Documents / Resources
| DIGI
802.15.4 XBee 3 RF
Module
[pdf] User Guide
802.15.4, XBee 3, RF Module, XBee 3 RF Module, 802.15.4 XBee 3 RF Module,
Module
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