Neoway N25 Commands Manual

AT Commands Manual

Issue 1.1 Date 2019-11-12

N25 AT Commands Manual

Copyright

i

No part of this document may be reproduced or transmitted in any form or by any means without prior written

consent of Neoway Technology Co., Ltd.

is the trademark of Neoway Technology Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective

holders.

Notice

This document provides guide for users to use N25.

This document is intended for system engineers (SEs), development engineers, and test engineers.

THIS GUIDE PROVIDES INSTRUCTIONS FOR CUSTOMERS TO DESIGN THEIR APPLICATIONS.

PLEASE FOLLOW THE RULES AND PARAMETERS IN THIS GUIDE TO DESIGN AND COMMISSION.

NEOWAY WILL NOT TAKE ANY RESPONSIBILITY OF BODILY HURT OR ASSET LOSS CAUSED BY

IMPROPER OPERATIONS.

THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE DUE TO

PRODUCT VERSION UPDATE OR OTHER REASONS.

EVERY EFFORT HAS BEEN MADE IN PREPARATION OF THIS DOCUMENT TO ENSURE ACCURACY

OF THE CONTENTS, BUT ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS

DOCUMENT DO NOT CONSTITUTE A WARRANTY OF ANY KIND, EXPRESS OR IMPLIED.

Neoway provides customers complete technical support. If you have any question, please contact your

account manager or email to the following email addresses:

[email protected]

Website: http://www.neoway.com

 
N25 AT Commands Manual 
Contents 
 
Copyright © Neoway Technology Co., Ltd 
ii 
 
Contents 
General Commands ................................................................................. 8 
1 Querying Module Information: ATI................................................................................................ 8 
2 Querying Software Version: +CGMR ........................................................................................... 8 
3 Querying IMEI: +CGSN ................................................................................................................ 9 
4 Querying the IMSI: +CIMI ............................................................................................................ 9 
5 Obtaining the ICCID of the SIM Card: +CCID ............................................................................ 10 
UE Control and Status Report ................................................................ 11 
1 Querying the Network Registration Status: +CREG ................................................................... 11 
2 Querying EPS Network Registration Status: +CEREG .............................................................. 12 
3 Enabling & Disabling the Terminal Display: ATE1/ATE0 ............................................................ 14 
4 Setting the Code Result Suppression Mode: ATQ ..................................................................... 14 
5 Setting the Response Format of the Device: ATV ...................................................................... 15 
6 Saving Parameter Settings: AT&W ............................................................................................ 16 
7 Resetting the Module to Factory Settings: AT&F ....................................................................... 16 
8 Setting Module Functionality: +CFUN ........................................................................................ 17 
9 Clock: +CCLK ............................................................................................................................. 17 
10 Setting the Baud Rate of the Module: +IPR ............................................................................. 18 
11 Entering PIN Code: +CPIN ...................................................................................................... 19 
12 Setting Error Information: +CMEE ........................................................................................... 19 
SMS Commands .................................................................................... 21 
1 Setting Preferred SMS Storage: +CPMS ................................................................................... 21 
2 Setting SMS Inputting Mode: +CMGF........................................................................................ 22 
3 Setting TE Character Set: +CSCS ............................................................................................. 22 
4 Setting SMS Indication Mode: +CNMI ....................................................................................... 23 
5 Reading SMS Messages: +CMGR ............................................................................................ 25 
6 SMS Message List: +CMGL ....................................................................................................... 26 
7 Sending SMS Messages:+CMGS .............................................................................................. 28 
8 Writing SMS Messages:+CMGW ............................................................................................... 29 
9 Sending Stored SMS Messages:+CMSS .................................................................................. 30 
10 Delete SMS Messages: +CMGD ............................................................................................. 31 
11 Setting SMS Center Number: +CSCA ..................................................................................... 32 
12 Setting Text Mode Parameters: +CSMP .................................................................................. 32 
13 Displaying Text Mode Parameters: +CSDH ............................................................................. 33 
Network Service ..................................................................................... 35 
1 Querying Signal Quality: +CSQ ................................................................................................. 35 
2 Selecting and Registering a GSM Network: +COPS ................................................................. 36 
3 Querying Network State: +NETSTATE ...................................................................................... 37 
4 Querying Network Status: + TUESTATS .................................................................................... 38 
5 Querying CE Status: +CESTATUS............................................................................................. 40 
6 Setting SC Mode: +SETSCMODE ............................................................................................. 40 

 
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7 Setting Network Mode: +NETCFG ............................................................................................. 41 
EGPRS Commands ............................................................................... 42 
1 Setting PDP Format: CGDCONT ............................................................................................... 42 
2 Setting Up a PPP Link: +XIIC .................................................................................................... 43 
3 Setting GPRS Attach and Detach: +CGATT .............................................................................. 44 
4 Reporting IP Address: +IPADDR ................................................................................................ 44 
5 Reporting RRC Status: +CSCON .............................................................................................. 45 
6 Reporting PSM Status: +PSMEVENT........................................................................................ 45 
7 Releasing RRC Connection: +RRCRLSREQ ............................................................................ 46 
TCP Client Commands ........................................................................... 47 
1 Setting Receive Mode: +RECVMODE ....................................................................................... 47 
2 Setting TCP Keepalive: + TCPKEEPALIVE ............................................................................... 47 
3 Setting Up TCP Connection: +TCPSETUP ................................................................................ 48 
4 Sending TCP Data: +TCPSEND ................................................................................................ 49 
5 Querying Status of Data Sent: +TCPACK .................................................................................. 50 
6 Receiving TCP Data: +TCPRECV ............................................................................................. 51 
7 Reading TCP Data: +TCPREAD ................................................................................................ 51 
8 Closing TCP Link: +TCPCLOSE ................................................................................................ 52 
9 Setting Up UDP Connection: +UDPSETUP ............................................................................... 52 
10 Sending UDP Data: +UDPSEND ............................................................................................. 53 
11 Receiving UDP Data: +UDPRECV .......................................................................................... 54 
12 Reading UDP Data: +UDPREAD ............................................................................................. 55 
13 Closing UDP Connection: +UDPCLOSE ................................................................................. 55 
14 Querying TCP/UDP Connection Status: +IPSTATUS .............................................................. 55 
Transparent TCP/UDP Commands......................................................... 57 
1 Setting Up Transparent TCP Connection: +TCPTRANS ........................................................... 57 
2 Setting Up Transparent UDP Connection:+UDPTRANS ........................................................... 58 
3 Closing Transparent Connection: +TRANSCLOSE ................................................................... 58 
4 Querying TCP/UDP Connection Status: +IPSTATUS ................................................................ 59 
FTP AT Commands ................................................................................ 60 
1 Logging in to the FTP Server: +FTPLOGIN ............................................................................... 60 
2 Logging Out from the FTP Server: +FTPLOGOUT .................................................................... 61 
3 Obtaining File Size on FTP Server: +FTPSIZE.......................................................................... 61 
4 Downloading Data from the FTP Server: +FTPGET .................................................................. 62 
5 Uploading Data to the FTP Server: +FTPPUT ........................................................................... 63 
6 Querying FTP Link Status: +FTPSTATUS ................................................................................. 64 
HTTP Commands ................................................................................... 66 
1 Setting HTTP Parameters: +HTTPPARA ................................................................................... 66 
2 Setting Up HTTP Link: +HTTPSETUP ....................................................................................... 67 
3 HTTP Request: +HTTPACTION................................................................................................. 67 
4 Closing HTTP Link: +HTTPCLOSE ........................................................................................... 70 
5 Receiving HTTP Data: +HTTPRECV ......................................................................................... 70 
6 HTTP Link Closing: +HTTPCLOSED ......................................................................................... 71 
HTTPS Commands .............................................................................. 72 
1 Setting HTTPS Parameters: +HTTPSPARA ............................................................................ 72 
2 Setting Up HTTPS Connection: +HTTPSSETUP .................................................................... 72 

 
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3 HTTPS Request: +HTTPSACTION ......................................................................................... 73 
4 Closing HTTPS Connection: +HTTPSCLOSE ......................................................................... 75 
5 Receiving HTTPS Data: +HTTPSRECV .................................................................................. 75 
6 HTTPS Connection Closed Report: +HTTPSCLOSED ........................................................... 76 
MQTT Commands ................................................................................ 77 
1 User Parameter Settings: +MQTTCONNPARAM .................................................................... 77 
2 Will Settings: +MQTTWILLPARAM .......................................................................................... 77 
3 Connection Command: +MQTTCONN .................................................................................... 78 
4 Subscription: +MQTTSUB ........................................................................................................ 78 
5 Cancelling Subscription: +MQTTUNSUB ................................................................................ 79 
6 Topic Publish: +MQTTPUB ...................................................................................................... 79 
7 Disconnecting to the MQTT Server: +MQTTDISCONN ........................................................... 80 
8 Receiving Topic Content: +MQTTSUB ..................................................................................... 80 
9 Report of Disconnection: +MQTTDISCONNED ....................................................................... 81 
10 Querying MQTT Connection Status: +MQTTSTATE ............................................................. 81 
PSM&eDRX Commands ...................................................................... 82 
1 Setting PSM Mode: +CPSMS .................................................................................................. 82 
2 Setting eDRX Mode: +CEDRXS .............................................................................................. 84 
3 Reading eDRX Parameters: +CEDRXRDP ............................................................................. 86 
Other Commands ................................................................................. 88 
1 Updating Time:+UPDATETIME ................................................................................................ 88 
2 Powering Off Module: +CPWROFF ......................................................................................... 90 
3 Setting Clock Mode: +CSCLK .................................................................................................. 90 
4 Setting PM Mode: +NVSETPM ................................................................................................ 91 
5 PING Test: +PING .................................................................................................................... 91 
6 Enabling Extending Functions: +NEONBIOTCFG ................................................................... 92 
7 Setting LED: +LEDMODE ........................................................................................................ 92 
Error Code ............................................................................................ 94 
 Reference Process of AT Command Programming ................................ 96 
A.1 Content of PDU SMS Messages ............................................................................................... 96 
A.2 Flowchart of Sending Text SMS Messages (Through UART) ................................................... 98 
A.3 Flowchart of Sending PDU SMS Messages (Through UART) .................................................. 99 
 

N25 AT Commands Manual

Contents

v

About This Document

Scope

This document is applicable to N25.

Audience

This document is intended for system engineers (SEs), development engineers, and test engineers.

Change History

Issue

Date

Change

Changed By

1.0

2019-01

Initial draft

Tao Wenhong

1.1

2019-10

⚫ Added the MQTT commands

⚫ Added +NETCFG

Tao Wenhong

Conventions

Symbol

Indication

This warning symbol means danger. You are in a situation that could cause fatal

device damage or even bodily damage.

Means reader be careful. In this situation, you might perform an action that could

result in module or product damages.

Means note or tips for readers to use the module

N25 AT Commands Manual

Contents

vi

Related Documents

Neoway_N25_Datasheet

Neoway_N25_Product_Specifications

Neoway_N25_EVK_User_Guide

N25 AT Commands Manual

Chapter 1 General Commands

7

Boot LOG Instruction

The UART outputs +PBREADY after the phonebook is available.

If the module is booted in automatic baudrate detection mode, enter AT 5 seconds after the module is

powered up to check if the AT function is initialized. The UART responds with OK if AT is initialized and

outputs +PBREADY after the phonebook is available.

N25 does not detect baudrate automatically if at is sent.

N25 AT Commands Manual

Chapter 1 General Commands

8

1 General Commands

1.1 Querying Module Information: ATI

Description

To query the module information, including manufacturer, model, and version

Format

ATI<CR>

Parameter

<manufacturer>: Module manufacturer

<module_model>: Module model

<soft_version>: Software version

Return Value

Example

ATI

NEOWAY

N25

01

OK

Manufacturer

Module model

Version

Remarks

N/A

1.2 Querying Software Version: +CGMR

Description

To query the software version

Format

AT+CGMR<CR>

Parameter

<version>: Software version information

Return Value

Example

AT+CGMR

+CGMR: N25-R02-STDBZ-01

OK

Remarks

N/A

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Chapter 1 General Commands

9

1.3 Querying IMEI: +CGSN

Description

To query the International Mobile Equipment Identity (IMEI) of the module

Format

AT+CGSN<CR>

Parameter

N/A

Return Value

Example

AT+CGSN

+CGSN: 355910044336974

OK

Remarks

The IMEI is a character string of 15 digits.

1.4 Querying the IMSI: +CIMI

Description

To query the international mobile subscriber identification (IMSI)

Format

AT+CIMI<CR>

Parameter

N/A

Return Value

<CR><LF>ERROR<CR><LF>

<CR><LF>+CME ERROR: <err><CR><LF>

Example

AT+CIMI

+CIMI: 460020188385503

OK

Obtain the IMSI number.

AT+CIMI

ERROR

Query the IMSI.

No SIM card is installed.

Remarks

IMSI is a character string of 15 digits and starts with 3 digits of MCC and 2 digits of

MNC. It is used to authenticate the SIM card.

N25 AT Commands Manual

Chapter 1 General Commands

10

1.5 Obtaining the ICCID of the SIM Card: +CCID

Description

To obtain the integrated circuit card identifier (ICCID) of the SIM card

Format

AT+CCID<CR>

Parameter

<ICCID>: SIM card ID

Return Value

<CR><LF>ERROR<CR><LF>

Example

AT+CCID

+CCID: 89860002190810001367

OK

Read command

AT+CCID

ERROR

Read command

The SIM card is not inserted.

Remarks

The ICCID number is a character string of 20 digits.

N25 AT Commands Manual

Chapter 2 UE Control and Status Report

11

2 UE Control and Status Report

2.1 Querying the Network Registration Status: +CREG

Description

To query the network registration status of the module

Format

⚫ AT+CREG=[<n>]<CR>

⚫ AT+CREG?<CR>

⚫ AT+CREG=?<CR>

Parameter

<n>: Specified whether to enable network registration unsolicited result codes.

0: Disable network registration unsolicited result codes (default setting).

1: Enable network registration unsolicited result codes +CREG: <stat>.

2: Enable network registration and location information (Cell ID, Local ID)

unsolicited result code +CREG: <stat>[, [<lac>],[<ci>],[<AcT>]]

<stat>: network status

0: Not registered, the module is not currently searching an operator to register to

1: Registered the home network

2: Not registered, but the module is currently trying to attach or searching an

operator to register to

3: Registration denied

4. Unknown code

5: Registered, roaming

<lac>: Two-byte location area code in hexadecimal format, string type

<ci>: Four-byte cell ID in hexadecimal format, string type

<Act>: The access technology of the serving cell, integer type

0: GSM

1: GSM compact

2: UTRAN

3: GSM w/EGPRS

4: UTRAN w/HSDPA

5: UTRAN w/HSUPA

6: UTRAN w/HSDPA and HSUPA

7: E-UTRAN

9: NB-IoT

Return Value

<CR><LF>+CREG: <n>,<stat>[,<lac>,<ci>[,<Act>]]

<CR><LF>ERROR<CR><LF>

<CR><LF>+CME ERROR: <err><CR><LF>

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Chapter 2 UE Control and Status Report

12

Example

AT+CREG=1

OK

Enable network registration

unsolicited codes.

AT+CREG?

+CREG: 0,1

OK

Query the network registration

status of the module.

AT+CREG=?

+CREG: (0-2)

OK

Query the value range of the

network registration status

parameter.

Remarks

N/A

2.2 Querying EPS Network Registration Status: +CEREG

Description

To query the EPS network registration status of the module

Format

⚫ AT+CEREG=[<n>]<CR>

⚫ AT+CEREG?<CR>

⚫ AT+CEREG=?<CR>

Parameter

<n>: Specified whether to enable network registration unsolicited result codes.

0: Disable network registration unsolicited result codes (default setting).

1: Enable network registration unsolicited result codes +CREG: <stat>.

2: Enable network registration and location information (Cell ID, Local ID) unsolicited

result code +CREG: <n>,<stat>[,[<lac>],[<ci>],[<AcT>]]

3: Enable network registration unsolicited information cause_type and reject_cause

4: Enable network registration unsolicited information Active-Time and Periodic-

TAU

5: Enable network registration unsolicited information cause_type, reject_cause,

Active-Time, and Periodic-TAU

<stat>: network status

0: Not registered, the module is not currently searching for an operator to register

1: Registered to the home network

2: Not registered, but the module is currently trying to attach or searching for an

operator to register

3: Registration denied

4. Unknown code

5: Registered, roaming

<lac>: Two-byte location area code in hexadecimal format, string type

<ci>: Four-byte cell ID in hexadecimal format, string type

<Act>: The access technology of the serving cell, integer type

0: GSM

1: GSM compact

2: UTRAN

3: GSM w/EGPRS

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Chapter 2 UE Control and Status Report

13

4: UTRAN w/HSDPA

5: UTRAN w/HSUPA

6: UTRAN w/HSDPA and HSUPA

7: E-UTRAN

9: NB-IoT

<cause_type>:

0: <reject_cause> contains EMM cause

1: <reject_cause> contains UE cause

<reject_cause>: reject cause. See 3GPP TS 24.301 Annex A.

<Active-Time>: In GERAN/UTRAN network, set Active Time value (T3324)

Bit8-Bit6: unit

000 – 2 seconds

001 – 1 minute

010 – 6 minutes

111 - T3324 invalid

Bit5-Bit1: binary-code time

e.g. 00000001 indicates 2 second ×1=2 seconds

<Periodic-TAU>: 8-bit unibyte

In GERAN/UTRAN network, set RAU circle (T3412)

Bit8-Bit6: unit

000 – 10 minutes

001 – 1 hours

010 – 10 hours

011 – 2 seconds

100 – 30 seconds

101 – 1 minute

110 – 320 hours

111 - T3412 invalid

Bit5-Bit1: binary-code time, e.g. 00100010 indicates 1 hour ×2=2 hours

Return Value

<CR><LF>+CEREG: <n>,<stat>[,[<tac>],[<ci>],[<AcT>],[cause_type],

[reject_cause],[<Active-Time>],[<Periodic-TAU>]]

<CR><LF>+CEREG: (list of supported <n>s)

Example

AT+CEREG?

+CEREG: 0,1

OK

If the value of <n> is set to 1, the current

EPS network registration status is

queried.

AT+CEREG=1

OK

Enable network registration unsolicited

codes.

AT+CEREG=?

+CEREG: (0-5)

OK

Query the value range of the network

registration status parameter.

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Chapter 2 UE Control and Status Report

14

Remarks

N/A

2.3 Enabling & Disabling the Terminal Display: ATE1/ATE0

Description

To enable or disable the terminal display function of the AT commands

Format

⚫ ATE1<CR>

⚫ ATE0<CR>

Parameter

N/A

Return Value

See the Example

Example

ATE1

OK

AT

OK

Turn on module AT command echo function

Send AT, serial tools show "AT" and "OK".

ATE0

OK

Turn off the module AT command echo

function

Send AT, serial tools only show "OK"

Remark

⚫ Settings by this command are not saved after the module is powered off.

⚫ The terminal display function is enabled by default.

⚫ If the command is sent after dialing up to connect the network, terminal display

is disabled automatically.

2.4 Setting the Code Result Suppression Mode: ATQ

Description

To set the mode whether to suppress the code result

Format

ATQ[<value>]<CR>

Parameter

<value>: 0, 1

0: Output the code result (default)

1: Suppress the code result

Return Value

See the Example.

Example

ATQ1

AT+CSQ

+CSQ: 31, 99

Set to code result suppress mode. (The module does not

return OK after this command is executed successfully.)

After the mode is set, the return value for the AT+CSQ

command does not contain the code result OK.

N25 AT Commands Manual

Chapter 2 UE Control and Status Report

15

ATQ0

OK

AT

OK

Set to the code result output mode.

After the mode is set, the return value for the AT command

contains the code result OK.

Remarks

⚫ After mode set to the code result suppression mode, the module does not

output OK or ERROR to commands.

⚫ The setting by this command is not saved after the module is powered down.

The setting is valid only for the GSM commands and invalid for customized

commands.

⚫ ATQ is equal to ATQ1.

2.5 Setting the Response Format of the Device: ATV

Description

To set the response format of the device

Format

ATV[<value>]<CR>

Parameter

<value>: 0, 1

0: Set the response format to output with only some header, footer, and digit text.

1: Set the response format to output with all headers, footers, and detailed response

text (default).

Return Value

See the Example.

Example

ATV1

OK

AT+CSQ

+CSQ: 31, 99

OK

Set the response format to output with

all headers, footers, and detailed

response text.

ATV00

AT+CSQ

+CSQ: 31, 99

0

Set the response format to output with

only some header, footer, and digit

text. The module returns 0 after the

format is set successfully.

Remarks

⚫ ATV is equal to ATV1.

⚫ After ATV0 is executed, the return value for a command in correct format is 0

(default setting is OK) which follows the command; 4 for command in incorrect

format (default setting is ERROR).

⚫ Settings by this command are not be saved after the module is powered down.

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Chapter 2 UE Control and Status Report

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2.6 Saving Parameter Settings: AT&W

Description

To save parameter settings

Format

AT&W<CR>

Parameter

N/A

Return Value

See the Example

Example

AT+CEREG?

+CEREG: 0,0

OK

AT+CEREG=1

OK

AT&W

OK

AT+CEREG?

+CEREG: 1,1

OK

Query the current parameter value. The

value is 0.

Set commands that support parameter

saving.

Save parameter settings and restart the

module.

Query the current parameter value. The

value is 1.

AT&W0

OK

Save parameter settings. This

command has the same function as

AT&W.

Remarks

⚫ The following commands support parameter saving: ATE, +CMEE, ATV, ATQ,

CEREG, IPR, etc.

⚫ AT&W0 is equal to AT&W. To restore to the default settings, execute AT&F.

2.7 Resetting the Module to Factory Settings: AT&F

Description

To reset the module to the factory settings

Format

AT&F[<value>]<CR>

Parameter

<value>

0: Reset the module to factory settings.

Return Value

See the Example.

Example

AT&F0

OK

Reset the module to factory settings.

AT&F

OK

Reset the module to factory settings.

Remarks

If the module is set to the code result suppression mode (ATQ1), reset it to factory

settings by executing this command.

N25 AT Commands Manual

Chapter 2 UE Control and Status Report

17

2.8 Setting Module Functionality: +CFUN

Description

To select the level of functionality of the module by setting <fun>

Format

⚫ AT+CFUN=[<fun>[,<rst>]]<CR>

⚫ AT+CFUN?<CR>

⚫ AT+CFUN=?<CR>

Parameter

<fun>: power saving function mode

0: turn off radio and SIM power

1: Full functionality (default)

4: turn off the transmitting and receiving RF circuit of the module (airplane mode)

<rst>: Specifies whether to restart the module

0: do not reset the MT before setting it to <fun> power level

1: reset the MT before setting it to <fun> power level

Return Value

<CR><LF>+CFUN: (list of supported <fun>s),(list of supported <rst>s)

<CR><LF>+CME ERROR: <err><CR><LF>

<CR><LF>ERROR<CR><LF>

Example

AT+CFUN=1

OK

Set full functionality.

AT+CFUN?

+CFUN: 1

OK

Query current function level.

Full functionality

AT+CFUN=?

+CFUN: (0,1,4),(0,1)

OK

Query available parameter value

ranges.

Remarks

Settings by this command are not be saved after the module is powered down.

2.9 Clock: +CCLK

Description

To set and query the real-time clock

Format

⚫ AT+CCLK=<time><CR>

⚫ AT+CCLK?<CR>

Parameter

<time>: Character string in format of "YY/MM/DD,hh:mm:ss[+TZ]".

TZ: Two digits, indicating the time lag between the local time and the GMT time.

Return Value

<CR><LF>ERROR<CR><LF>

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Chapter 2 UE Control and Status Report

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Example

AT+CCLK="18/07/01,14:54:01+32"

OK

Set the real-time clock of the module.

AT+CCLK?

+CCLK: "18/07/01,14:54:10+32"

OK

Query the setting of the real-time clock.

AT+CCLK=14/07/02,10:48:50

ERROR

Incorrect command syntax.

Remarks

⚫ Settings by this command are not be saved after the module is powered down.

⚫ The default clock is GMT+0.

2.10 Setting the Baud Rate of the Module: +IPR

Description

To set the baud rate of the module

Format

⚫ AT+IPR=<baud rate><CR>

⚫ AT+IPR?<CR>

⚫ AT+IPR=?<CR>

Parameter

<baud rate>: The value can be 0, 2400, 4800, 9600, 19200, 38400, 57600

Return Value

<CR><LF>+IPR: (list of supported <baud rate>s)

Example

AT+IPR=57600

OK

Set the baud rate to 57600 bps.

AT+IPR?

+IPR: 57600

OK

Query the current baud rate.

AT+IPR=?

+IPR:

(0,2400,4800,9600,19200,38400,57600)

OK

Query the available baud rate

range.

AT+IPR=100

ERROR

Set the baud rate to 100.

The value is not allowed

Remarks

⚫ The default baud rate is 0, indicating automatic baud rate detection.

⚫ Settings by this command are not saved after the module is powered down.

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Chapter 2 UE Control and Status Report

19

2.11 Entering PIN Code: +CPIN

Description

To query the PIN status and enter PIN code

Format

⚫ AT+CPIN=<pin>[,<newpin>]<CR>

⚫ AT+CPIN?<CR>

Parameter

<pin>, <newpin>: string type value

Return Value

<code>:

READY: No password

SIM PIN: Enter PIN code.

SIM PUK: Enter PUK code.

SIM PIN2: Enter PIN2 code.

SIM PUK2: Enter PUK2 code.

<CR><LF>ERROR<CR><LF>

Example

AT+CPIN?

+CPIN: READY

OK

Query whether PIN code is required.

AT+CPIN="0000"

ERROR

Incorrect pin code

AT+CPIN="1234"

OK

Input correct PIN code.

AT+CPIN?

ERROR

No SIM card is inserted.

Remarks

⚫ To enter PIN code, lock current SIM card and then restart the module.

⚫ If PIN code is input incorrectly for three times, PUK is required to unlock.

2.12 Setting Error Information: +CMEE

Description

To enable or disable the +CME ERROR:<err> result code

Format

⚫ AT+CMEE=<n><CR>

⚫ AT+CMEE? <CR>

⚫ AT+CMEE=?<CR>

Parameter

<n>:

0: Disable the +CME ERROR:<err> result code and display ERROR.

1: Enable the +CME ERROR:<err> result code and use the numeric <err> value.

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