An RRD library for Arduino
That's a very simple Arduino library that can be used to periodically collect analog or digital data and store them in an RRD pool, without interrupting the normal flow of your program.
Beware that this is just a draft, and not a mature project.
Davide Alberani [email protected] (C) 2012 http://www.mimante.net/
The code is released under the terms of the MIT license.