XBee Stacker

The Stacker is an XBee radio-sized Arduino-compatible microcontroller that can be “stacked” directly underneath the radio. It is intended for use with devices that already use the XBee’s 20-pin footprint. Future designs could easily utilize other microcontrollers or host sensors.  The goal is to create plug-and-play tools for prototyping new concepts that extend the popular radio’s feature set. A few iterations have created a prototype that works well, supports USB programming, wireless programming, I2C, SPI, digital and analog I/O!

XBee Stacker 2

This is the next iteration of an Arduino-compatible board the size of an XBee that fits right underneath the radio. It uses the ATMega32U4 so in Arduino you can program it as a Leonardo board.

Features

• I2C

• SPI

• scriptable interruption of:

  • all UART transactions

  • XBee pin sleep controls

• local support for:

  • association indicator

  • commissioning button

• 17 total digital i/o pins (14 Arduino, 4 XBee)

  • 6 configurable as ADC analog inputs

  • 4 configurable as PWM analog outputs

  • 2 attachable interrupts

• USB serial programming

• wireless programming

• EEPROM

• multiple UARTs

• Use of all Arduino libraries, e.g. servo, stepper, displays, capacitive sensing, rfid, sd cards etc.

Pinouts

Bottom of XBee Stacker 2:

Top of XBee Stacker 2

Schematics & Board Layout

XBee Stacker Arduino 2.0-board

XBee Stacker Arduino 2.0-schematic

Code

Sample code library

Program as an Arduino Leonardo board!

Licensing

Not determined, leaning toward open source hardware.