I just ordered a JeeNode v6 kit and an RFM12B board from Modern Device to enable working on Chapter 5, the Tweeting Bird Feeder. I decided not to get ZigBee modules for various reasons:
- Form factor of ZigBees. They seem too large and bulky for my tube-style bird feeders.
- Cost. The JeeNode combines both the Freeduino and radio, and the RFM12B board leverages one of my existing Really Bare Bones Board at slightly less cost. Of course I have to spend the time assembling each kit.
- Open source. JeeNodes are open sourced.
- Documentation. The existing documentation for JeeNodes is great, and JeeLabs offers pages on how to construct wireless sensor networks.