Ublox SARA-R4 Series User Manual

SARA-R4/N4 series-AT Commands Manual
UBX-17003787 - R09
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15GPIO
Page 163 of 307
15GPIO
15.1Introduction
The section describes the AT commands used to configure the GPIO pins provided by u-blox cellular modules.
15.1.1GPIO functions
On u-blox cellular modules, GPIO pins can be opportunely configured as general purpose input or output.
Moreover GPIO pins of u-blox cellular modules can be configured to provide custom functions via +UGPIOC
AT command. The custom functions availability can vary depending on the u-blox cellular modules series and
version: see Table 15 for an overview of the custom functions supported by u-blox cellular modules.
<gpio_mode>
Output Input Network status indication GNSS supply enable GNSS data ready GNSS RTC sharing Jamming detection SIM card detection Headset detection GSM Tx burst indication Module operating status indication Module functionality status indication I
2
S digital audio interface
SPI serial interface Master clock generation UART (DSR, DTR, DCD and RI) interface Wi-Fi enable Ring indication Last gasp enable Pad disabled
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 255
SARA-R404M / SARA-
R412M / SARA-R410M-0
1B / SARA-R410M-02B
* * * * * *
SARA-R410M-52B * * * * * * *
SARA-N4 * * * * * * *
Table 15: GPIO custom functions overview
The configuration of the GPIO pins (i.e. the setting of the parameters of the +UGPIOC AT command) is saved
in the NVM and used at the next power-on.
15.1.2GPIO mapping
The number of available GPIO pins and their mapping can vary depending on the u-blox cellular modules series
and version. The GPIOs mapping for different u-blox cellular modules is reported in the following tables.
See the corresponding module system integration manual for the functions supported by each GPIO.
<gpio_id> Pin name Pin number Factory-programmed function Remarks
16 GPIO1 16 Pin disabled -
23 GPIO2 23 Pin disabled -
24 GPIO3 24 Pin disabled -
25 GPIO4 25 Pin disabled -
42 GPIO5 42 Pin disabled Only pin 42 can be configured for
SIM card detection functionality
19 GPIO6 19 Pin disabled -
Table 16: SARA-R4 / SARA-N4 series GPIO mapping
SARA-R4 / SARA-N4
When the SIM card detection functionality is enabled, the +CIND AT command reports the status.
When the SIM card detection functionality is enabled, the status can be read with the +UGPIOR AT
command.

Ublox SARA-R4 Series Specifications

General

Brand	Ublox
Model	SARA-R4 Series
Category	Control Unit
Language	English