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Using the Arduino Pro Mini 3.3V
This tutorial is your guide to all things Arduino Pro Mini. It explains what it is, what it's not, and how to get started using it.
Exploring XBees and XCTU
How to set up an XBee using your computer, the X-CTU software, and an XBee Explorer interface board.
SparkFun Inventor's Kit Experiment Guide - v4.0
The SparkFun Inventor's Kit (SIK) Experiment Guide contains all of the information needed to build all five projects, encompassing 16 circuits, in the latest version of the kit, v4.0a.