Ublox SARA-R4 Series User Manual (English)

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

UBX-17003787 - R09



14System features

Page 155 of 307

- SARA-R4 / SARA-N4 - 64 pins

o When a non-testable pin is selected, the command does not return an error result code but the value is

not considered and not applied.

o The status of the n-th pin will be represented by the corresponding n-th bit; see the <op_code>

description for the notation of each mode setting

o Convert each group of four binary digits into its hexadecimal representation

SARA-R4 / SARA-N4

See the End User Test Application Note [133] for the list of pins available for testing.

• An example of the AT commands sequence to test the digital pins is reported in Table 14.

Command Response Description

Configure the formatting of the error result code by

means of +CMEE AT command

AT+COPS=2 OK Deregister the module from the network

AT+UTEST=1 OK The module enters the test mode

AT+UTEST=10,2,"000007F400

C000D83F00"

OK The command puts the module in Interface initialised

state; the command saves the pins status to restore it

at the end of the test.

Pins enabled for testing: DSR, RI, DCD, DTR, RTS, CTS,

GPIO1, GPIO2, GPIO3, GPIO4, I2S1_RXD/GPIO6, I2S1_TXD/

GPIO7, GPIO5, I2S1_CLK/GPIO8, I2S1_WA/GPIO9, SPI_

SCLK/GPIO10, SPI_MOSI/GPIO11, SPI_MISO/GPIO12, SPI_

SRDY/GPIO13, SPI_MRDY/GPIO14

AT+UTEST=10,3,"0000049400

4000C01800"

OK Pins configuration:

o DTR, RTS, GPIO3, GPIO4, I2S1_RXD/GPIO6, GPIO5,

I2S1_CLK/GPIO8, SPI_MOSI/GPIO11, SPI_MRDY/

GPIO14 as input

o DSR, RI, DCD, CTS, GPIO1, GPIO2, I2S1_TXD/

GPIO7, I2S1_WA/GPIO9, SPI_SCLK/GPIO10, SPI_

MISO/GPIO12, SPI_SRDY/GPIO13 as output

AT+UTEST=10,4,"0000036000

8000182700"

OK Digital logic value of the output pins:

o DSR, RI, DCD, CTS, GPIO1, GPIO2, I2S1_TXD/

GPIO7, I2S1_WA/GPIO9, SPI_SCLK/GPIO10, SPI_

MISO/GPIO12, SPI_SRDY/GPIO13 set to "high".

AT+UTEST=10,5 OK Configurations made by AT+UTEST=10,2; AT+UTEST=

10,3 and AT+UTEST=10,4 are executed.

AT+UTEST=10,6 000007F400C000D83F00

Logic digital value measured at modules pins:

o DSR, RI, DCD, DTR, RTS, CTS, GPIO1, GPIO2, GPIO3,

GPIO4, I2S1_RXD/GPIO6, I2S1_TXD/GPIO7, GPIO5,

I2S1_CLK/GPIO8, I2S1_WA/GPIO9, SPI_SCLK/GPIO10

, SPI_MOSI/GPIO11, SPI_MISO/GPIO12, SPI_SRDY/

GPIO13, SPI_MRDY/GPIO14: "high" level detected

AT+UTEST=0 OK Module exits from the test mode and normal pins

configurations is restored.

Table 14: Digital pins test command examples

The digital pins can be configured as many times as needed by the testing process; AT+UTEST=10,2

command is not needed any more as the DUT is already in Interface initialised state.

14.6Internal temperature monitor +UTEMP

+UTEMP

SARA-R410M-52BModules

SARA-N4

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

partial No No No - +CME Error

14.6.1Description

Returns the values of internal temperature sensors of the specified unit.

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