Arduino XBee/Bluetooth Bee USB Adapter

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Bee Adapter is a compact USB to serial adapter equipped with BEE (20pin 2.0mm) sockets. With integrated FT232RL IC, It can be used for programming or communicating with board which basic Arduino but without USB interface,like Sniffer Nano. On the other hand, you may connect your PC to various wireless applications via the BEE compatible modules.

The adapter also support XBee module interface.



  • 3.3V and 5V dual power output
  • 3.3V and 5V IO compatible
  • USB 2.0 protocol
  • BitBang mode ready
  • Easily connected to a PC via mini USB cable
  • XBee-setting support software X-CTU

Application Ideas

  • USB Adapter for XBee BTBee.
  • USB to Serial adapter for communicating with TTL/CMOS level Serial devices.
  • Programmer for Arduino boards without USB interface,like Sniffer Nano.
  • Programmer for micro-controllers / CPLDs using ISP(in-circuit-serial-programming).
  • 3.3V / 5V power source for a breadboard MCU applications


  • When you used Bee Adapter V1.0 as a programer, make sure your target power supply voltage then set the 3.3V/5V switch correctly. Both power supply voltage and IO level will be changed.


BeeADP SCH.jpg


Microprocessor FT232RL
PCB size 3.0cm x 4.7cm
Power supply 3.3V and 5V DC
Interface Mini-B USB, 2.54mm pitch pin header
Adapter socket XBee compatible 2.0mm pitch female pin header
Connectivity USB
Communication Protocol UART, Bit Bang I/O, SPI

Pin definition and Rating

Mechanic Dimensions



Bee Adapter V1.0 is commonly used as USB to Serial Port (COM port) interface. This kind of configuration can be used to communicate with a MCU serial port or to program a MCU which support UART based ISP.

You can even use it to be a BreadBoard Power adapter 3.3V/5v by switch and also has UART Port for which could be used for debug or other purposes...

The UART Pin order is : VCC , TX , RX , GND



Hardware Installation


Includes important code snippet. Demo code like : <syntaxhighlight lang="php">

Demo code {




The projects and application examples.

Bill of Materials (BOM) /parts list

All the components used to produce the product.


Please list your question here:


If you have questions or other better design ideas,

Version Tracker

Revision Descriptions Release
Bee Adapt V1.0 Initial public release Aug 10, 2011

Bug Tracker

Bug Tracker is the place you can publish any bugs you think you might have found during use. Please write down what you have to say, your answers will help us improve our


Additional Idea

The Additional Idea is the place to write your project ideas about this product, or other usages you've found. Or you can write them on Projects page.


Open Source Drivers

 Other Sources of FT232RL application information

How to buy

Click here to buy:

See Also

Other related products and resources.


This documentation is licensed under the Creative Commons Attribution-ShareAlike License 3.0 Source code and libraries are

licensed under GPL/LGPL, see source code files for details.

External Links