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.. _1.6_scratch_pi5:

1.6 Vanishing Vase
========================

Now let's do a little magic trick, do nothing, and then the vase somehow disappears.

.. image:: img/1.6_header.png

Required Components
------------------------------

In this project, we need the following components. 

.. image:: img/1.6_component.png

It's definitely convenient to buy a whole kit, here's the link: 

.. list-table::
    :widths: 20 20 20
    :header-rows: 1

    *   - Name	
        - ITEMS IN THIS KIT
        - LINK
    *   - Raphael Kit
        - 337
        - |link_Raphael_kit|

You can also buy them separately from the links below.

.. list-table::
    :widths: 30 20
    :header-rows: 1

    *   - COMPONENT INTRODUCTION
        - PURCHASE LINK

    *   - :ref:`cpn_gpio_extension_board`
        - |link_gpio_board_buy|
    *   - :ref:`cpn_breadboard`
        - |link_breadboard_buy|
    *   - :ref:`cpn_wires`
        - |link_wires_buy|
    *   - :ref:`cpn_reed_switch`
        - |link_reed_switch_buy|

Build the Circuit
---------------------

.. image:: img/1.6_fritzing.png

Load the Code and See What Happens
---------------------------------------

Load the code file (``1.6_vanishing_vase.sb3``) to Scratch 3.

When you use a magnet near the reed switch module, a vase will appear on the stage, take away the magnet and the vase will disappear.

Tips on Sprite
----------------

Select Sprite1 and click **Costumes** in the top left corner; upload **desk1.png** and **desk2.png** from the ``~/raphael-kit/scratch/picture`` path via the **Upload Costume** button; delete the default 2 costumes, and rename the sprite to **desk**.

.. image:: img/1.6_vase.png

Tips on Codes
--------------

.. image:: img/1.6_reed2.png
  :width: 400

When the magnet is close to the reed switch module, gpio17 is low, and the costume of the **desk** sprite is switched to **desk1** (the vase is still on the desk).

.. image:: img/1.6_reed3.png
  :width: 400

After taking away the magnet, gpio17 is high, at this time the costume of the **desk** sprite is switched to **desk2** (only one desk).