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An XBee radio with a Quarter. The XBee board is 24.38 mm (0.960 in) wide.
ManufacturerDigi International
CPUSilicon Labs EM357 SoC
Input20 GPIO pins
Power2.1 to 3.6 V DC

Digi XBee is the brand name of a popular family of form factor compatible wireless connectivity modules from Digi International. The first XBee modules were introduced under the MaxStream brand in 2005[1] and were based on the IEEE 802.15.4-2003 standard designed for point-to-point and star communications. Since the initial introduction, the XBee family has grown and a complete ecosystem of wireless modules, gateways, adapters and software has evolved.

The XBee radios can all be used with the minimum number of connections — power (3.3 V), ground, data in and data out (UART), with other recommended lines being Reset and Sleep.[2] Additionally, most XBee families have some other flow control, input/output (I/O), analog-to-digital converter (A/D) and indicator lines built in.

The latest XBee 3 family introduces new capabilities like MicroPython, Digi's TrustFence security framework and Bluetooth low energy for local commissioning, configuration, diagnostics or beaconing

Supported technologies


Short Range (2.4 GHz)

Long Range (868/900 MHz)

  • Point-to-Point, Star topology, DigiMesh

Cellular / LPWAN

Form-factors, antennas and data modes


XBee modules are available in three form-factors. All XBees, with the exception of the XBee 868LP, are available in the popular 20-pin through-hole form-factor. The latest XBee modules are also available in surface-mount and micro-mount form-factors, which are popular for high-volume applications due to the reduced manufacturing costs of SMT.

XBee modules typically come with several antenna options, including U.FL, on-board chip, RF pad and integrated PCB

XBee modules can operate either in a transparent data mode or in a packet-based application programming interface (API) mode.[3]

  • Transparent mode: data coming into the Data IN (DIN) pin are directly transmitted over-the-air to the intended receiving radios without any modification. Incoming packets can either be directly addressed to one target (point-to-point) or broadcast to multiple targets (star). This mode is primarily used in instances where an existing protocol cannot tolerate changes to the data format. AT commands are used to control the radio's setting
  • API mode: data are wrapped in a packet structure that allows for addressing, parameter setting and packet delivery feedback,[4] including remote sensing and control of digital I/O and analog input pins.[5]

Product family


As of March 2020, the Digi XBee portfolio includes[6]

  • Short Range (2.4 GHz)
    • XBee 3 (newest family featuring integrated Bluetooth low energy, MicroPython and TrustFence security framework)
    • XBee Series 2 (mature family, not recommended for new designs)
      • 802.15.4 / Zigbee / DigiMesh (see descriptions above)
  • Long Range (900/868 MHz)
  • Cellular / LPWAN
    • XBee 3 LTE Cat-1
    • XBee 3 LTE-M / NB-IoT
    • XBee 3G

See also



  1. ^ "Archived copy". Archived from the original on March 16, 2012. Retrieved May 11, 2011.{{cite web}}: CS1 maint: archived copy as title (link)
  2. ^ "Knowledge Base Article - Sleep Timing, Retry Timing, and Encryption Throughput - Support - Digi International". Archived from the original on July 22, 2011. Retrieved May 11, 2011.
  3. ^ "XBee S2 Quick Reference Guide/Cheat Sheet and Video Tutorials to Getting Started - TunnelsUP".
  4. ^ "ZigBee AT vs API Commands - Digi International". Archived from the original on July 22, 2011. Retrieved May 11, 2011.
  5. ^ Robert Faludi (24 December 2010). Building Wireless Sensor Networks: With ZigBee, XBee, Arduino, and Processing. O'Reilly Media, Inc. ISBN 978-0-596-80773-3. Retrieved 7 June 2012.
  6. ^ "Explore the Digi XBee Ecosystem".