GFTB is a Java library for the serial communication protocol of the GFTB climate measurement device. The handheld sensor is equipped with several sensors, such as temperature, pressure, and humidity sensors. This library provides an interface for GFTB100 and GFTB200 to use the handheld sensor as an active sensor within a monitoring network. For comunication, the RxTx interface is used.
The bundle adjustment is written in the platform-independent programming language Java and, therefore, the software is runnable at each platform and operation system that provides a Java Runtime Environment (JRE). The JRE can be found for several platforms at Oracles download page or at the OpenJDK-project pages.