Arduino® Portenta Cat. M1/NB IoT GNSS
Shield
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Arduino® Portenta Cat. M1/NB IoT GNSS Shield
Modified: 12/10/2022
3.5 Cellular Connectivity
The Arduino® Portenta Cat. M1/NB IoT GNSS Shield provide access to various cellular networks via the TX62-W
Module (U1). It is possible to connect an external cellular antenna via a micro UFL connector (J7). Both SMS and
data transfer functionality are provided. SMS messages can be stored in the SIM card module. The modem is
addressable via AT commands. Modem status is provided by the RGB LED (DL1). Input impedance for the cellular
antenna is 50Ω.
Note: The Portenta Cat. M1/NB IoT GNSS Shield requires a physical nano SIM for cellular connectivity. eSIM is not
supported at this time.
3.6 Positioning
Four major GNSS systems are supported by the Arduino® Portenta Cat. M1/NB IoT GNSS Shield. NMEA protocol
is used for transmission of GNSS information. An active antenna can be connected via the micro UFL connector (J8)
and should have a bias voltage of 3.0V. Input impedance for GNSS antenna connector is 50Ω. For compatibility with
all GNSS system, the antenna should support bands over 1559 - 1606 MHz frequency range.
Note: GNSS and cellular services cannot be used simultaneously.
3.7 Power Tree
Portenta Cat. M1/NB IoT GNSS Shield Power Tree
Power to the Arduino® Portenta Cat. M1/NB IoT GNSS Shield is provided by the host Portenta board via the high
density connector. A 3.0V voltage is provided via TC1185-3.0VCT713 (U8) for the active GNSS antenna.
