.. _hardware-list:

Hardware description
====================

Below we provide a description of the setups in use in the lab together with a
full list of components that can be
used to assemble them.

Two configurations of our setups are described: the first one is for detailed
kinematic
tracking of eyes and tail in a fish with head restrained in agarose, the
second for tracking freely swimming fish in a petri dish.

Finally, we present a cheap version of the behavioral setup that can be
easily built for about 700 euros, and easily assembled using cardboard,
laser-cut parts or other custom-made enclosures.

Head-restrained fish setup
--------------------------

This configuration requires high magnification, provided by a 50 mm macro
objective. On the other side, illumination be provided only in a very
small field and can be accomplished by with a simple single IR-LED.

.. image:: ../hardware_list/pictures/embedded.png
   :scale: 18%
   :alt: alternate text
   :align: center



Freely swimming fish setup
--------------------------

This configuration uses a camera with larger field of view and a custom-built
LED box for illuminating homogeneously a large area.

.. image:: ../hardware_list/pictures/freely.png
   :scale: 18%
   :alt: alternate text
   :align: center


List of components
------------------
Below we provide a list of all components required for building the two
setups. Indicative prices in euros (Jul 2018) and links to
supplier pages are provided as well.


.. note::
    Many parts of the setup, such as the base, the stage and the holders can
    easily be replaced with custom solutions.


.. image:: ../hardware_list/pictures/parts_full.png
   :scale: 30%
   :alt: alternate text
   :align: center


Head-restrained setup
.....................
.. csv-table:: Components for embedded configuration behavioral setup
   :file: ../hardware_list/embedded.csv
   :widths: 10, 25, 25, 25, 25, 25, 25, 25, 25, 25
   :header-rows: 1


Freely-swimming setup
.....................
.. csv-table:: Components for freely swimming configuration behavioral setup
   :file: ../hardware_list/freely_swimming.csv
   :widths: 10, 25, 25, 25, 25, 25, 25, 25, 25, 25
   :header-rows: 1

Low-cost behavioral setup
--------------------------
A very cheap version of the behavioral setup can be built by replacing the
projector with small LED display and the camera lens with a fixed focal length
objective. The dimensions of this setup are quite small and parts can be kept in place with
a basic custom-made frame that can be laser-cut or even made out of cardboard.


.. image:: ../hardware_list/pictures/low_cost.png
   :scale: 15%
   :alt: alternate text
   :align: center