Ublox SARA-R4 Series User Manual (English)

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SARA-R4/N4 series-AT Commands Manual

UBX-17003787 - R09

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14System features

Page 161 of 307

14.12Last gasp configuration +ULGASP

+ULGASP

SARA-R410M-52BModules

SARA-N4

Syntax PIN required Settings saved Can be aborted Response time Error referenceAttributes

partial No NVM No < 10 s +CME Error

14.12.1Description

The command enables/disables and configures the last gasp feature. The application is automatically

triggered by a properly configured GPIO (see GPIO Introduction). The feature supports the sending of a

predefined last notification in case of power outage, just before the power goes off. It is assumed that the

cellular module is registered to the network when the alarm is triggered; however the command just configures

the feature so it is possible to issue it also if PIN is not inserted. It is possible to enable/disable the +UULGASP

URC in order to be notified about the operation result.

This AT command must be issued after a proper configuration of the GPIO has been performed via the

+UGPIOC command. Otherwise, if +UGPIOC is issued after +ULGASP, the Last Gasp will work only after

a reboot.

The parameters will be set to the values stored in the NVM in case they are omitted in the set command.

14.12.2Syntax

Type Syntax Response Example

Set AT+ULGASP=<GPIO_mode>,

<text>,<msg_format>,,<profile_id>,

<IP_protocol>,<IP_addr:PORT>[,

[<method>],,[<urc_enable>],[<nv_

upd_freq>],[<tx_count>]]

OK AT+ULGASP=0,"Power_loss",0,,1,17,

"192.168.100.20:8080"

Read AT+ULGASP? +ULGASP: <GPIO_mode>,<text>,

<msg_format>,,<profile_ID>,

<IP_protocol>,<IP_addr:PORT>,

<method>,,<urc_enable>,<nv_upd_

freq>,<tx_count>

+ULGASP: 0,"Power_loss",0,,1,17,

"192.168.100.20:8080",1,,1,0,1

Test AT+ULGASP=? +ULGASP: (list of supported <GPIO_

mode>'s),,(list of supported <msg_

format>'s),,(list of supported

<profile_id>'s),(list of supported

<IP_protocol>'s),,(list of supported

<method>'s),,(list of supported <

urc_enable>'s),(list of supported

<nv_upd_freq>'s),(list of supported

<tx_count>'s)

+ULGASP: (0-2),,(0-1),,(1),(17),,(1),,(0-

1),(0-3600),(1-10)

URC +UULGASP: <result>,<bearer> +UULGASP: 0,1

14.12.3Defined values

Parameter Type Description

<GPIO_mode> Number Select the interrupt trigger. Allowed values:

• 0 (factory-programmed value): trigger disabled; the following arguments will be

ignored.

• 1: falling edge

• 2: rising edge

<text> String The string that will be sent upon GPIO movement. Text or binary format can be

selected with the <msg_format> parameter. When text format is selected, a

maximum of 256 ASCII chars is allowed. When the binary format is selected, a

maximum of 512 chars (0-9,A-F) is allowed. Every 8-bit octet of the message must be

written as two IRA character long hexadecimal numbers, e.g. an octet with integer

value 42 (i.e. 0x2A) must be written as a string of two characters "2A" (IRA 50 and 65).

Other manuals for Ublox SARA-R4 Series

System Integration Manual157 pages

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Ublox SARA-R4 Series Specifications

General

Operating Temperature	-40°C to +85°C
Category	Cellular Module
Technology	LTE Cat M1, LTE Cat NB1
Frequency Bands	B1, B2, B3, B4, B5, B8, B12, B13, B18, B19, B20, B25, B26, B28, B39
Interfaces	UART, USB, I2C, GPIO
Protocols	TCP/IP, UDP, HTTP, HTTPS, MQTT, LWM2M
Security	TLS/SSL, DTLS, Secure Boot
Certifications	GCF, PTCRB, CE, FCC, IC