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TC35 - Revision history
2026-06-04T22:43:49Z
Revision history for this page on the wiki
MediaWiki 1.37.2
https://w.electrodragon.com/w/index.php?title=TC35&diff=26575&oldid=prev
Chao at 05:38, 28 May 2020
2020-05-28T05:38:55Z
<p></p>
<p><b>New page</b></p><div>== Usage ==<br />
See at-commands for how to make phone call and send message.<br /><br />
<gallery><br />
File:TC35withMCU.jpg | Connect to MCU<br />
</gallery><br />
== Schematic ==<br />
* [[File:TC35schematic.pdf]]<br />
* Version 2.0: [[File:TC35-schematic2.pdf]]<br />
== Pin Definition ==<br />
[[File:TC35 pin sequency.jpg|thumbnail]]<br />
{| class="wikitable"<br />
|-<br />
! Group !! Pin Number !! Description !! Remark<br />
|-<br />
| P4 || 1 || RXD_PC_TTL || PC/MCU/TC35 TTL Connector<br />
|-<br />
| P4 || 2 || TXD_PC_TTL ||<br />
|-<br />
| P4 || 3 || RXD_MCU_TTL<br />
|-<br />
| P4 || 4 || RXD_35_TTL<br />
|-<br />
| P4 || 5 || TXD_35_TTL<br />
|-<br />
| P4 || 6 || TXD_MCU_TTL<br />
|-<br />
| P4 || 7 || RXD_PC_TTL<br />
|-<br />
| P4 || 8 || TXD_PC_TTL<br />
|}<br />
{| class="wikitable"<br />
|-<br />
! Group !! Pin Number !! Description !! Remark<br />
|-<br />
| P5 || 1 || VCC12V || External Battery<br />
|-<br />
| P5 || 2 || GND || GND<br />
|-<br />
| P5 || 3 || VCC || Module Power Supply<br />
|-<br />
| P5 || 4 || GND || GND<br />
|-<br />
| P5 || 5 || RXD_PC_232 || PC 232 Receive/Send Connector<br />
|-<br />
| P5 || 6 || TXD_PC_232 || PC 232 Receive/Send Connector<br />
|-<br />
| P5 || 7 || RXD_35_TTL || TC35 232 Receive/Send Connector<br />
|-<br />
| P5 || 8 || TXD_35_TTL || TC35 232 Receive/Send Connector<br />
|-<br />
| P5 || 9 || TXD_MCU_TTL || External MCU 232 Receive/Send Connector<br />
|-<br />
| P5 || 10 || RXD_MCU_TTL || External MCU 232 Receive/Send Connector<br />
|}<br />
{| class="wikitable"<br />
|-<br />
! Group !! Pin Number !! Description !! Remark<br />
|-<br />
| P6 || 1 || VCC || Module Power Supply<br />
|-<br />
| P6 || 2 || PD || Close Module<br />
|-<br />
| P6 || 3 || RING || Incoming Call Indicator<br />
|-<br />
| P6 || 4 || SYNC || Signal Indicator<br />
|-<br />
| P6 || 5 || LOW_BAT || Back up battery<br />
|-<br />
| P6 || 6 || VDD || <br />
|-<br />
| P6 || 7 || AKKU_TEMP || Battery temperature check<br />
|-<br />
| P6 || 8 || POWER || <br />
|}<br />
{| class="wikitable"<br />
|-<br />
! Group !! Pin Number !! Description !! Remark<br />
|-<br />
| P7 || 1 || EPP1 || Ear phone 1 Positive<br />
|-<br />
| P7 || 2 || EPN1 || Ear phone 1 Negative<br />
|-<br />
| P7 || 3 || GND || GND<br />
|-<br />
| P7 || 4 || MICP1 || Microphone 1 Positive<br />
|-<br />
| P7 || 5 || MICN1 || Microphone 1 Negative<br />
|-<br />
| P7 || 6 || EPP2 || Ear phone 2 Positive<br />
|-<br />
| P7 || 7 || EPN2 || Ear phone 2 Negative<br />
|-<br />
| P7 || 8 || GND || GND<br />
|-<br />
| P7 || 9 || MICP2 || Microphone 2 Positive<br />
|-<br />
| P7 || 10 || MICN2 || Microphone 2 Negative<br />
|}<br />
<br />
== Reference ==<br />
External circuit Design<br />
* Sim Card interface design - [[File:TC35_AN_01_V0200_Application_Notes_SIM_interface.pdf|Sim Card interface design]]<br /><br />
* Audio Interface design - [[File:Tc35_an_02_v02.00_audio_interface_260185.pdf]]<br /><br />
* Hardware Interface design -[[:File:TC35_hd.pdf|TC35_hd.pdf]]<br />
<br />
* AT-Commands List - [[AT-commands|AT-command list please visit here]].<br />
[[category: 2G ]]</div>
Chao