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	<id>https://w.electrodragon.com/w/index.php?action=history&amp;feed=atom&amp;title=ED-BTB</id>
	<title>ED-BTB - Revision history</title>
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	<updated>2026-07-23T16:52:22Z</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=ED-BTB&amp;diff=28202&amp;oldid=prev</id>
		<title>Chao: /* Pin Definition */</title>
		<link rel="alternate" type="text/html" href="https://w.electrodragon.com/w/index.php?title=ED-BTB&amp;diff=28202&amp;oldid=prev"/>
		<updated>2020-10-16T07:08:38Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Pin Definition&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&lt;br /&gt;
== Specification ==&lt;br /&gt;
&amp;lt;gallery&amp;gt;&lt;br /&gt;
File:Ed-btb-01.jpg | Male CONN&lt;br /&gt;
File:Ed-btb-02.jpg | Female CONN&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
== Pin Definition ==&lt;br /&gt;
&lt;br /&gt;
* Platform board Pin Definition&lt;br /&gt;
* Interface includes&lt;br /&gt;
* 1x SPI&lt;br /&gt;
* 1x I2C&lt;br /&gt;
* 1x UART&lt;br /&gt;
* Power supply 3V3 / 5V / GND&lt;br /&gt;
* 1x general GPIO: ESP8266: IO16&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable sortable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
! - !! Child-Function-Left !! ESP8266-Left !! ESP8266-Right !! Child-Function-Right !! -&lt;br /&gt;
|-&lt;br /&gt;
| 1 || 3V3 || 3V3 (dot mark) || GND || GND || 2&lt;br /&gt;
|-&lt;br /&gt;
| 3 || +5V || +5V || IO15 || SPI_CS || 4&lt;br /&gt;
|-&lt;br /&gt;
| 5 || SPI_MOSI|| IO13 || IO4 || I2C_SDA || 6&lt;br /&gt;
|-&lt;br /&gt;
| 7 || SPI_MISO || IO12 || IO5 || I2C_SCL || 8&lt;br /&gt;
|-&lt;br /&gt;
| 9 || SPI_SCK || IO14 || MCU_TXD || UART || 10&lt;br /&gt;
|-&lt;br /&gt;
| 11 || RST || IO16 || MCU_RXD || UART || 12&lt;br /&gt;
|}&lt;br /&gt;
&amp;lt;gallery&amp;gt;&lt;br /&gt;
File:ED-BTB_pin_sch.png | ESP8266 Platform Board BTB SCH&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
* ESP8266 Base Board default use IO12/IO14 as software serial input, these two pins disconnect from pin 7/9, but connect to uart pin 10/12&lt;br /&gt;
&lt;br /&gt;
== Height ==&lt;br /&gt;
* ESP8266 Platform Board + Child Board Total Height = 3mm&lt;br /&gt;
* ESP32 PLatform Board + Child Board Total Height = 5mm &lt;br /&gt;
[[category: Board-To-Board]]&lt;/div&gt;</summary>
		<author><name>Chao</name></author>
	</entry>
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