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	<id>https://w.electrodragon.com/w/index.php?action=history&amp;feed=atom&amp;title=SIM800_HDK</id>
	<title>SIM800 HDK - Revision history</title>
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	<updated>2026-07-22T17:02:49Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://w.electrodragon.com/w/index.php?title=SIM800_HDK&amp;diff=31307&amp;oldid=prev</id>
		<title>Chao at 05:19, 22 May 2021</title>
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		<updated>2021-05-22T05:19:58Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;== Pinout Definiton ==&lt;br /&gt;
&amp;lt;gallery&amp;gt;&lt;br /&gt;
File:Sim800_mini_sch.png | sim800 mini&lt;br /&gt;
File:Sim800_mec.png | sim800 mini mechanical size&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
=== SIM800 Board Series Details ===&lt;br /&gt;
Net LED:&lt;br /&gt;
* Off  SIM800H/L is not running &lt;br /&gt;
* 64ms On/800ms Off  SIM800H/L not registered the network &lt;br /&gt;
* 64ms On/3000ms Off  SIM800H/L registered the network &lt;br /&gt;
* 64ms On/800ms Off  GPRS communication is established&lt;br /&gt;
Ring LED: when module receives the call or a message, this LED will be off or Flash&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== SIM800C SCH ==&lt;br /&gt;
Schematic of new SIM800 Mini (selling)&lt;br /&gt;
* [https://github.com/Edragon/Eagle-part Eagle board also avaialble at github]&lt;br /&gt;
&amp;lt;gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
File:Gprs_relay_board_sch.png | GPRS relay board schematic&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;gallery&amp;gt;&lt;br /&gt;
File:SIM800C_schematic.jpg | SIM800C-Full 01&lt;br /&gt;
File:Sim800c_v4.2.png | new version 03, current selling version&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Obseleted Schematic ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Schematic SIM800 (old)&lt;br /&gt;
* D2 is the Ring led. D1 is Net LED&lt;br /&gt;
&amp;lt;gallery&amp;gt;&lt;br /&gt;
File:Sim800L schematic.jpg|SIM800L-Mini&lt;br /&gt;
File:BK-SIM800C Schematic 01.jpg| SIM800C-Mini&lt;br /&gt;
File:SIM800H breakout Schematic 01.jpg|SIM800H-Mini&lt;br /&gt;
File:Sim800c_con_sch.png | SIM800 use MP1470&lt;br /&gt;
File:SIM800_RPI.png| SIM800 to RPI&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[category: SIM800]]&lt;/div&gt;</summary>
		<author><name>Chao</name></author>
	</entry>
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