General Purpose Input/Output; Reserved Pins (Rsvd) - Ublox SARA-R4 Series System Integration Manual
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Also See for SARA-R4 Series:
- Command manual (307 pages) ,
- User manual (24 pages) ,
- System integration manual (128 pages)
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1.11 General Purpose Input/Output
SARA-R4/N4 series modules include six pins (GPIO1-GPIO6) which can be configured as General Purpose
Input/Output or to provide custom functions via u-blox AT commands (for more details see the SARA-
R4/N4 series AT Commands Manual [2], +UGPIOC, +UGPIOR, +UGPIOW AT commands), as summarized
in
Table
8.
Function
Description
Network status indication Network status: registered / data transmission, no service
GNSS supply enable
Enable/disable the supply of a u-blox GNSS receiver
9
connected to the cellular module by the DDC (I2C)
interface
GNSS data ready
Sense when a u-blox GNSS receiver connected to the
9
module is ready for sending data by the DDC (I2C)
interface
SIM card detection
SIM card physical presence detection
Module status indication
Module switched off or in PSM low power deep sleep
mode, versus active or connected mode
Last gasp
Input to trigger last gasp notification
10
General purpose input
Input to sense high or low digital level
General purpose output
Output to set the high or the low digital level
Pin disabled
Tri-state with an internal active pull-down enabled
Table 8: SARA-R4/N4 series modules GPIO custom functions configuration
1.12 Reserved pins (RSVD)
SARA-R4/N4 series modules have pins reserved for future use, marked as RSVD.
All the RSVD pins are to be left unconnected on the application board, except for the RSVD pin number
33 that can be externally connected to ground.
Not supported by "00" and "01" product versions
9
10
Not supported by "00", "01" and SARA-R410M-02B product versions
UBX-16029218 - R11
SARA-R4/N4 series - System Integration Manual
System description
Default GPIO
Configurable GPIOs
--
GPIO1
--
GPIO2
--
GPIO3
--
GPIO5
--
GPIO1, GPIO2, GPIO3,
GPIO4, GPIO5, GPIO6
--
GPIO3, GPIO4, GPIO6
--
GPIO1, GPIO2, GPIO3,
GPIO4, GPIO5, GPIO6
--
GPIO1, GPIO2, GPIO3,
GPIO4, GPIO6
GPIO1, GPIO2, GPIO3,
GPIO1, GPIO2, GPIO3,
GPIO4, GPIO5, GPIO6
GPIO4, GPIO5, GPIO6
Page 44 of 157
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