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<refnamediv>
<refname>ANALOG_READ_SB</refname>
<refpurpose>Analog ports of an Arduino board which allow the acquisition of an analog input</refpurpose>
</refnamediv>
<refsection>
<title>Block Screenshot</title>
<para>
<inlinemediaobject>
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<title>Contents</title>
<itemizedlist>
<listitem>
<para>
<link linkend="ANALOG_READ_SB">Analog ports of an Arduino board which allow the acquisition of an analog input</link>
</para>
</listitem>
<listitem>
<itemizedlist>
<listitem>
<para>
<xref linkend="Palette_ANALOG_READ_SB">Palette</xref>
</para>
</listitem>
<listitem>
<para>
<xref linkend="Description_ANALOG_READ_SB">Description</xref>
</para>
</listitem>
<listitem>
<para>
<xref linkend="Dialogbox_ANALOG_READ_SB">Dialog box</xref>
</para>
</listitem>
<listitem>
<para>
<xref linkend="Example1_ANALOG_READ_SB">Example 1</xref>
</para>
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<para>
<xref linkend="Seealso_ANALOG_READ_SB">See Also</xref>
</para>
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</itemizedlist>
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<refsection id="Palette_ANALOG_READ_SB">
<title>Palette</title>
Arduino
</refsection>
<refsection id="Description_ANALOG_READ_SB">
<title>Description</title>
<para> Arduino UNO board has 6 analog input ports (A0 to A5), the Arduino Mega board has 16 analog input ports (A0 to A15). The 10 bits channels convert the analog input from 0 to 5 volts, to a digital value between 0 and 1023. </para>
<para> Do note that the minimum sampling rate is 8 ms for this block. </para>
</refsection>
<refsection id="Dialogbox_ANALOG_READ_SB">
<title>Dialog box</title>
<inlinemediaobject> <imageobject> <imagedata fileref="ANALOG_READ_SB_dialogbox.png" align="center"/> </imageobject> </inlinemediaobject>
<para> The port number of 0-5 must be specified for the UNO card, 0-15 for a MEGA board. </para>
<para> The card number can not be changed at this time. </para>
<para> There would be no verification routine for the setting, please refer to the specification of your Arduino board to put a correct value. </para>
</refsection>
<refsection id="Example1_ANALOG_READ_SB">
<title>Example 1</title>
<para> The following example shows the use of the block in connecting with an angular potentiometer which signal pin is connected to port 2 of Arduino board. The other two pins of the potentiometer are connected to ground (GND) and the 5 Volt the card directly. </para>
<inlinemediaobject> <imageobject> <imagedata fileref="ANALOG_READ_example.png" align="center"/> </imageobject> </inlinemediaobject>
</refsection>
<refsection id="Seealso_ANALOG_READ_SB">
<title>See Also</title>
<para>
<link linkend="ANALOG_WRITE_SB">ANALOG_WRITE_SB</link>
</para>
<para>
<link linkend="DIGITAL_READ_SB">DIGITAL_READ_SB</link>
</para>
<para>
<link linkend="DIGITAL_WRITE_SB">DIGITAL_WRITE_SB</link>
</para>
</refsection>
</refentry>
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