This ROS package implements a ROS Action Server, which uses the LaserModul.action Action Message. The laser control module is responsible for turning the laser on and off. The Action Message goal of the LaserModul.action is the follow:
bool on- boolean variable to turn on/off the laser
This Message has empty result.
The laser_modul.launch file is located in launch folder. It defines and launches the laser_modul ROS node. This node can control the line laser on the Raspberry Pi.
The LaserModulServer.py in the scripts folder implements the expected functionality.