XBee modules are IEEE 802.15.4 radio interface modules with a built in microprocessor. They are produced by Digi (they were formerly produced by a company called MaxStream). The modules come in several flavors XBee 802.15.4 modules (formerly Series 1 modules) and XBee ZB (Formerly Series 2.5 modules). Both modules implement the IEEE 802.15.4 standard for radio communication. The ZB modules also implement the Zigbee protocol. The 802.15.4 and ZB modules are not currently compatible.
Both the XBee 802.15.4 and the XBee ZB modules also come in a "PRO" version. The "PRO" version uses a higher power transmitter, and therefore has longer range.
For the projects on this page, I am utilizing XBee 802.15.4 modules operating in the 2.4GHz band.
Unless otherwise noted, I am using an XBee Explorer USB to connect my computer to an XBee module.
Transparent Mode projects have been moved to Their own page.
Transparent Mode projects are on the API Mode Projects page.