Our AVS Lab has released new open source software on Github. The repository contains a software tool that can be used for latency analysis of ROS2 based software architectures. Typically, ROS2 software systems consist of a high number of publisher and subscriber modules. Our software tool is able to automatically create a data flow graph (DFG) for ROS2 software architectures using static code analysis. This allows data dependencies of a C++-based ROS2 system to be found and visualized more easily without manual annotation. The software tool can be used for various robotics applications such as autonomous vehicles.