https://w.electrodragon.com/w/index.php?action=history&feed=atom&title=SIM808_BRD1 2026-06-04T23:42:01Z Revision history for this page on the wiki MediaWiki 1.37.2 https://w.electrodragon.com/w/index.php?title=SIM808_BRD1&diff=31279&oldid=prev 2021-05-22T05:09:01Z

<p>Created page with &quot;=== SIM808 Board Series Details === ==== SIM808 Dev Board ==== Board specification <a href="/w/File:SIM808_dev_board_05.png" title="File:SIM808 dev board 05.png">200px|left</a> {| class=&quot;wikitable sortable&quot; |- ! No. !! Descri...&quot;</p> <p><b>New page</b></p><div>=== SIM808 Board Series Details ===<br /> ==== SIM808 Dev Board ====<br /> Board specification<br /> [[File:SIM808 dev board 05.png|200px|left]]<br /> {| class=&quot;wikitable sortable&quot;<br /> |-<br /> ! No. !! Description !! No. !! Description<br /> |-<br /> | 1 || sim card insert direction || 11 || IPX connector<br /> |-<br /> | 2 || battery connector || 12 || 5V power and serial interface<br /> |-<br /> | 3 || sim card protect ic || 13 || TVS over voltage protection<br /> |-<br /> | 4 || sim card slot || 14 || bluetooth connector<br /> |-<br /> | 5 || other control pins || 15 || LDO regulator<br /> |-<br /> | 6 || audio speaker and mic || 16 || LED status<br /> |-<br /> | 7 || usb connector for upgrading only || 17 || GPS power supply circuits<br /> |-<br /> | 8 || Titanium capacitor || 18 || GPS antenna connector<br /> |-<br /> | 9 || TTL 5V/3V3 switch<br /> |-<br /> | 10 || TTL macthing circuits<br /> <br /> |}<br /> Simple wiring and serial debugging<br /> &lt;gallery&gt;<br /> File:CH340 with SIMCOM808.JPG | Only need 4 wires<br /> File:Sim808 working status.JPG | send commands via serial monitor on PC<br /> &lt;/gallery&gt;<br /> Bluetooth Firmware<br /> * please prepare the USB socket and solder it<br /> * Install driver and then you can flash the firmware<br /> * Default firmware support TTS audio to speech, both firmware are provided<br /> <br /> [[category: SIM808 HDK]]</div>

Chao