The simple sensor network Pachube base station uses the Processing program below. Download the ZIP file of all the libraries and resources from this book’s website (see the Preface for more information). Inside the Processing sketch folder for the Simple Sensor Network are two subdirectories called code and data (see Figure 8-7). The code folder contains the log4j.jar and xbee-api-0.5.5.jar library files, just like in Chapter 5. There’s also a new library here called JPachube that handles connections with Pachube. The JPachube library is available at http://code.google.com/p/jpachube/, where you can check for the latest version if necessary. The data folder still holds the log4j.properties file, required by log4j.jar, and the font file for the sans serif 10-point font used for screen display.