change create_empty_filter to allocate memory
change create_empty_filter to allocate memory
Andrewiski/Robotics_Cape_Installer,Andrewiski/Robotics_Cape_Installer,Andrewiski/Robotics_Cape_Installer,StrawsonDesign/Robotics_Cape_Installer,StrawsonDesign/Robotics_Cape_Installer,StrawsonDesign/Robotics_Cape_Installer