.. currentmodule:: sardana.pool.controller .. _sardana-controller-howto: =================== Writing controllers =================== This chapter provides the necessary information to write controllers in sardana. Before writing a new controller you should check the `Sardana plugins catalogue `_. There's a high chance that somebody already wrote the plugin for your hardware. An overview of the pool controller concept can be found :ref:`here `. The complete controller :term:`API` can be found :ref:`here `. First, the common interface to all controller types is explained. After, a detailed chapter will focus on each specific controller type: .. toctree:: :maxdepth: 1 howto_controller howto_controller_testing howto_motorcontroller howto_countertimercontroller howto_0dcontroller howto_1dcontroller howto_2dcontroller howto_triggergatecontroller howto_ioregistercontroller howto_pseudomotorcontroller howto_pseudocountercontroller .. seealso:: See the :ref:`sardana-adding-elements` section for information on how to add, configure and use controllers.