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	<id>https://hades.mech.northwestern.edu//index.php?action=history&amp;feed=atom&amp;title=555_Servo_Circuit</id>
	<title>555 Servo Circuit - Revision history</title>
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	<updated>2026-04-18T04:41:48Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.35.9</generator>
	<entry>
		<id>https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=12906&amp;oldid=prev</id>
		<title>Hwang at 07:32, 20 March 2009</title>
		<link rel="alternate" type="text/html" href="https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=12906&amp;oldid=prev"/>
		<updated>2009-03-20T07:32:49Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 07:32, 20 March 2009&lt;/td&gt;
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  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;[[Category:Circuits]]&lt;/div&gt;&lt;/td&gt;
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  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;div&gt;See also:[[555_Timer]]&lt;/div&gt;&lt;/td&gt;
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  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;This page describes how to build a circuit for driving an RC Servo motor.  It uses two LM555 IC’s to create the pulse train that drives the motor.  For an RC Servo, the width of the “high” pulse determines the angle of the rotor.  Sample values for creating a working circuit are given.&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;This page describes how to build a circuit for driving an RC Servo motor.  It uses two LM555 IC’s to create the pulse train that drives the motor.  For an RC Servo, the width of the “high” pulse determines the angle of the rotor.  Sample values for creating a working circuit are given.&lt;/div&gt;&lt;/td&gt;
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  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;[[image:555 servo photo.jpg|center]]&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;[[image:555 servo photo.jpg|center]]&lt;/div&gt;&lt;/td&gt;
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&lt;/table&gt;</summary>
		<author><name>Hwang</name></author>
	</entry>
	<entry>
		<id>https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=3627&amp;oldid=prev</id>
		<title>Stephens at 22:12, 27 July 2006</title>
		<link rel="alternate" type="text/html" href="https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=3627&amp;oldid=prev"/>
		<updated>2006-07-27T22:12:02Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 22:12, 27 July 2006&lt;/td&gt;
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  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;[[Category:Circuits]]&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;[[Category:Circuits]]&lt;/div&gt;&lt;/td&gt;
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&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;This page describes how to build a circuit for driving an RC Servo motor.  It uses two LM555 IC’s to create the pulse train that drives the motor.  For an RC Servo, the width of the “high” pulse determines the angle of the rotor.  Sample values for creating a working circuit are given.&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;This page describes how to build a circuit for driving an RC Servo motor.  It uses two LM555 IC’s to create the pulse train that drives the motor.  For an RC Servo, the width of the “high” pulse determines the angle of the rotor.  Sample values for creating a working circuit are given.&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
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  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-deletedline diff-side-deleted&quot;&gt;&lt;div&gt;==Circuit Construction==&lt;/div&gt;&lt;/td&gt;
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  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;Two 555 timers are used to create the servo control signal.  The pinout for the LM555 is shown below:&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;Two 555 timers are used to create the servo control signal.  The pinout for the LM555 is shown below:&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Stephens</name></author>
	</entry>
	<entry>
		<id>https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=3626&amp;oldid=prev</id>
		<title>Stephens at 22:11, 27 July 2006</title>
		<link rel="alternate" type="text/html" href="https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=3626&amp;oldid=prev"/>
		<updated>2006-07-27T22:11:50Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 22:11, 27 July 2006&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;
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  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
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  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
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&lt;/tr&gt;
&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-deleted&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;a class=&quot;mw-diff-movedpara-right&quot; title=&quot;Paragraph was moved. Click to jump to old location.&quot; href=&quot;#movedpara_3_0_lhs&quot;&gt;&amp;#x26AB;&lt;/a&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;div&gt;&lt;a name=&quot;movedpara_1_0_rhs&quot;&gt;&lt;/a&gt;This &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;page&lt;/ins&gt; describes how to build a circuit for driving an RC Servo motor.  It uses two LM555 IC’s to create the pulse train that drives the motor.  For an RC Servo, the width of the “high” pulse determines the angle of the rotor.  Sample values for creating a working circuit are given.&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
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&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;a class=&quot;mw-diff-movedpara-left&quot; title=&quot;Paragraph was moved. Click to jump to new location.&quot; href=&quot;#movedpara_1_0_rhs&quot;&gt;&amp;#x26AB;&lt;/a&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-deletedline diff-side-deleted&quot;&gt;&lt;div&gt;&lt;a name=&quot;movedpara_3_0_lhs&quot;&gt;&lt;/a&gt;This &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;paper&lt;/del&gt; describes how to build a circuit for driving an RC Servo motor.  It uses two LM555 IC’s to create the pulse train that drives the motor.  For an RC Servo, the width of the “high” pulse determines the angle of the rotor.  Sample values for creating a working circuit are given.&lt;/div&gt;&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-added&quot;&gt;&lt;/td&gt;
&lt;/tr&gt;
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  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;==Circuit Construction==&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;==Circuit Construction==&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Stephens</name></author>
	</entry>
	<entry>
		<id>https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=3625&amp;oldid=prev</id>
		<title>Stephens at 22:11, 27 July 2006</title>
		<link rel="alternate" type="text/html" href="https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=3625&amp;oldid=prev"/>
		<updated>2006-07-27T22:11:32Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 22:11, 27 July 2006&lt;/td&gt;
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  &lt;td class=&quot;diff-deletedline diff-side-deleted&quot;&gt;&lt;div&gt;==Introduction==&lt;/div&gt;&lt;/td&gt;
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&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
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  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;br /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;This paper describes how to build a circuit for driving an RC Servo motor.  It uses two LM555 IC’s to create the pulse train that drives the motor.  For an RC Servo, the width of the “high” pulse determines the angle of the rotor.  Sample values for creating a working circuit are given.&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;This paper describes how to build a circuit for driving an RC Servo motor.  It uses two LM555 IC’s to create the pulse train that drives the motor.  For an RC Servo, the width of the “high” pulse determines the angle of the rotor.  Sample values for creating a working circuit are given.&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Stephens</name></author>
	</entry>
	<entry>
		<id>https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=3624&amp;oldid=prev</id>
		<title>Stephens: /* Circuit Construction */</title>
		<link rel="alternate" type="text/html" href="https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=3624&amp;oldid=prev"/>
		<updated>2006-07-27T22:11:10Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Circuit Construction&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 22:11, 27 July 2006&lt;/td&gt;
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  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 49:&lt;/td&gt;
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&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
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  &lt;td class=&quot;diff-deletedline diff-side-deleted&quot;&gt;&lt;div&gt;Here is a picture of a circuit built using parts in the lab.  I replaced Rc with a 10kOhm resistor and a 10k POT to allow some &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;adjustability&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;div&gt;Here is a picture of a circuit built using parts in the lab.  I replaced Rc with a 10kOhm resistor and a 10k POT to allow some &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;fine tuning&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;br /&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;br /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-deletedline diff-side-deleted&quot;&gt;&lt;div&gt;[[image:555 servo photo.jpg]]&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;div&gt;[[image:555 servo photo.jpg&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;|center&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Stephens</name></author>
	</entry>
	<entry>
		<id>https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=3622&amp;oldid=prev</id>
		<title>Stephens: /* Circuit Construction */</title>
		<link rel="alternate" type="text/html" href="https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=3622&amp;oldid=prev"/>
		<updated>2006-07-27T22:10:36Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Circuit Construction&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 22:10, 27 July 2006&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 48:&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 48:&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;| 4.4 || ~4.0 || ~2.375 || Other end&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;| 4.4 || ~4.0 || ~2.375 || Other end&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;|}&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;|}&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-deleted&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;br /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-deleted&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;div&gt;Here is a picture of a circuit built using parts in the lab.  I replaced Rc with a 10kOhm resistor and a 10k POT to allow some adjustability.&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-deleted&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;br /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-deleted&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;div&gt;[[image:555 servo photo.jpg]]&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Stephens</name></author>
	</entry>
	<entry>
		<id>https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=2612&amp;oldid=prev</id>
		<title>Stephens: /* Circuit Construction */</title>
		<link rel="alternate" type="text/html" href="https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=2612&amp;oldid=prev"/>
		<updated>2006-06-27T16:13:18Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Circuit Construction&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 16:13, 27 June 2006&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;Two 555 timers are used to create the servo control signal.  The pinout for the LM555 is shown below:&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;Two 555 timers are used to create the servo control signal.  The pinout for the LM555 is shown below:&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;br /&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;br /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-deletedline diff-side-deleted&quot;&gt;&lt;div&gt;[[image:555_pinout.jpg|center&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;|thumb&lt;/del&gt;|250px]]&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;div&gt;[[image:555_pinout.jpg|center|250px]]&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;br /&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;br /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;The first 555 timer creates a clock signal at our desired frequency.  The circuit for this is shown below:&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;The first 555 timer creates a clock signal at our desired frequency.  The circuit for this is shown below:&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Stephens</name></author>
	</entry>
	<entry>
		<id>https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=1912&amp;oldid=prev</id>
		<title>Stephens at 19:36, 9 June 2006</title>
		<link rel="alternate" type="text/html" href="https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=1912&amp;oldid=prev"/>
		<updated>2006-06-09T19:36:51Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:36, 9 June 2006&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-deletedline diff-side-deleted&quot;&gt;&lt;div&gt;[[Category:Circuits&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]][[Category:Actuators&lt;/del&gt;]]&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;div&gt;[[Category:Circuits]]&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;==Introduction==&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;==Introduction==&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;br /&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;br /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Stephens</name></author>
	</entry>
	<entry>
		<id>https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=1766&amp;oldid=prev</id>
		<title>Stephens at 16:49, 30 May 2006</title>
		<link rel="alternate" type="text/html" href="https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=1766&amp;oldid=prev"/>
		<updated>2006-05-30T16:49:46Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 16:49, 30 May 2006&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-deleted&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;a class=&quot;mw-diff-movedpara-right&quot; title=&quot;Paragraph was moved. Click to jump to old location.&quot; href=&quot;#movedpara_2_2_lhs&quot;&gt;&amp;#x26AB;&lt;/a&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;div&gt;&lt;a name=&quot;movedpara_0_0_rhs&quot;&gt;&lt;/a&gt;[[Category:Circuits&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]][[Category:Actuators&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;==Introduction==&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;==Introduction==&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;br /&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;br /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 47:&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 48:&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;| 4.4 || ~4.0 || ~2.375 || Other end&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;| 4.4 || ~4.0 || ~2.375 || Other end&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;|}&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;|}&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-deletedline diff-side-deleted&quot;&gt;&lt;br /&gt;&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-added&quot;&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-deletedline diff-side-deleted&quot;&gt;&lt;br /&gt;&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-added&quot;&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;a class=&quot;mw-diff-movedpara-left&quot; title=&quot;Paragraph was moved. Click to jump to new location.&quot; href=&quot;#movedpara_0_0_rhs&quot;&gt;&amp;#x26AB;&lt;/a&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-deletedline diff-side-deleted&quot;&gt;&lt;div&gt;&lt;a name=&quot;movedpara_2_2_lhs&quot;&gt;&lt;/a&gt;[[Category:Circuits]]&lt;/div&gt;&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-added&quot;&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Stephens</name></author>
	</entry>
	<entry>
		<id>https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=1575&amp;oldid=prev</id>
		<title>Lynch at 19:12, 25 May 2006</title>
		<link rel="alternate" type="text/html" href="https://hades.mech.northwestern.edu//index.php?title=555_Servo_Circuit&amp;diff=1575&amp;oldid=prev"/>
		<updated>2006-05-25T19:12:58Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:12, 25 May 2006&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 39:&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 39:&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;Using the values given in this document, you will get the following relationship:&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;Using the values given in this document, you will get the following relationship:&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;br /&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;br /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-deletedline diff-side-deleted&quot;&gt;&lt;div&gt;{| class=&quot;wikitable&quot; align=&quot;center&quot; style=&quot;text-align:center;width:400px&quot; border=&quot;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;1&lt;/del&gt;&quot;&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-addedline diff-side-added&quot;&gt;&lt;div&gt;{| class=&quot;wikitable&quot; align=&quot;center&quot; style=&quot;text-align:center;width:400px&quot; border=&quot;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;0&lt;/ins&gt;&quot;&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;|-&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;|-&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-deleted&quot;&gt;&lt;div&gt;! Analog In (V) !! Control Voltage (V) !! Pulse Width (ms) !! Servo Position&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-context diff-side-added&quot;&gt;&lt;div&gt;! Analog In (V) !! Control Voltage (V) !! Pulse Width (ms) !! Servo Position&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Lynch</name></author>
	</entry>
</feed>