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2022-02-15T11:04:17Z

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== Basic AT Commands ==
<br>

* AT - AT test

{| class="wikitable sortable"
|-
! Excute !! Feedback !! Read !! Feedback !! Write !! Feedback !! Test !! Feedback !! Description
|-
| AT+CSQ || CSQ:20,0 || - || - || - || - || - || - || signal quality, max at 31
|-
| AT+CRESET || OK || - || - || - || - || - || - || reset module
|-
| AT_CGMR || - || - || - || - || - || - || - || Check module firmware version
|-
| AT_CSUB || - || - || - || - || - || - || - || Check module version and IC type

|-
| - || - || - || - || AT+CPOWD=1 || 1= normal power off / 0 = emergancy power off || - || - || reset module

|-
| - || - || AT+CPIN? || +CPIN:READY, OK || AT+CPIN="123456" || enter sim password || - || - || check if sim card present
|-
| - || - || AT+CREG? || +CREG:0,1, OK; +CREG:0,2 not registered || - || - || - || - || register network?
|-
| - || - || AT+COPS? ||
* +COPS:0,0,"CHINAMOBILE" or empty
* CHINAMOBILE is the service provider
|| - || - || - || - || check card service provider
|-
| AT+ATE1 || - || - || - || - || - || - || - || on/off AT commands return info
|-
| AT+CGMI || SIMCOM_Ltd || - || - || - || - || - || - || Check the module manufacturer
|-
| AT+CGMM || SIMCOM_SIM900A || - || - || - || - || - || - || Check the module model type
|-
| AT+CGSN || 869988012018905 || - || - || - || - || - || - || Check the module IMEI, worldwide unique
|-
| AT+CNUM || +CNUM:"","15902020353",129,7,4 || - || - || - || - || - || - || Check the number of current sim card, not all kinds of card support this function
|-
| - || - || AT+CPSI? || - || - || - || - || - || check UE system info

|-
| AT+IPR || - || AT+IPR? || - || AT+IPR=115200 || - || - || - || check baudrate, AT+IPR=0 for auto detect.
|-
| AT+GSV || 1418B05SIM800C24_BT (bluetooth version) || - || - || - || - || - || - || Check module version, vendor, name, etc
|-
| AT+CNMP || - || - || - || - || - || - || - ||
* network selection commands
* 2:automatic, 13: GSM only, 38: LTE only, 48: Any modes but LTE
|-
| AT+CMEE || - || AT+CMEE? || - || AT+CMEE=2 || - || - || - || 1: use only error number code; 2: More verbose details of errors
|-
| AT+CFUN || - || AT+FCUN? || - || - || - || - || - ||
* Set Phone Functionality: 0=minimum Phone Functionality
* 1= Full Phone Functionality, 4=disable RF circuits

|-
| - || - || - || - || - || - || - || - || -
|}

[[File:SIMCOM AT.jpg|thumbnail]]

== Versions ==
AT+GSV<br>

SIM800
AT+CGMR
Revision:1418B06SIM800C24
OK

AT+CGMR
Revision:1418B08SIM800C24_BT (S2-1068S-Z1L1E)
OK

AT+GSV
SIMCOM_Ltd
SIMCOM_SIM800C
Revision:1418B08SIM800C24_BT
OK

SIM868
Revision:1418B05SIM868M32

SIMCOM_Ltd
SIMCOM_SIM868
Revision:1418B02SIM868M32_EAT

AT+GSV
SIMCOM_Ltd
SIMCOM_SIM7000G
Revision:1529B05SIM7000G
OK
[[category: SIMCOM AT]]

SIMCOM Basic AT - Revision history

Chao: /* Versions */