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SIM7070G

SIM7070G

SIMCom
Another Cat M1/NB-IoT module option offering broad global band support and common AT-command integration for cellular IoT products.
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Overview

The SIM7070G is a SIMCom cellular module family that supports LTE Cat-M1 and NB-IoT connectivity along with GNSS positioning. It exposes standard host interfaces (UART, USB, I2C, I2S, PCM, ADC) and uses common AT commands for control. The module accepts a 3.0 V to 4.6 V supply and is offered as a surface-mount module for integration into battery-powered IoT devices.

Why Choose This Part

SIM7070G combines LTE Cat-M1 and NB-IoT radios with on-board GNSS, reducing the number of separate components required for many IoT designs. It supports common, well-understood host interfaces (UART/USB) and AT commands, which simplifies firmware development and integration with microcontrollers or application processors. The module's wide supply range (3.0 V to 4.6 V) and -40 to 85 C rating make it suitable for battery-powered and industrial deployments.

Applications

Asset tracking
Low-power wide-area location tracking with GNSS plus Cat-M/NB cellular telemetry for periodic position and status uploads.
Smart metering
Meter and sensor connectivity that requires low data throughput, long battery life, and wide-area coverage.
Environmental monitoring
Remote sensors that send small telemetry packets over Cat-M/NB networks and optionally include GNSS time/position.
Wearables and tracking tags
Battery-powered devices needing certified cellular connectivity with low peak transmit power and GNSS.
Industrial telemetry
Periodic machine-to-cloud reporting in industrial sites where robust LTE-M/NB-IoT coverage and simple AT-command integration are preferred.

Key Specifications

Protocol Cat-M, Cat-NB, GNSS, GSM
Data Rate 1.119Mbps
Frequency 850MHz, 900MHz, 1.8GHz, 1.9GHz
Antenna Type Antenna Not Included
Mounting Type Surface Mount
Package / Case 68-SMD Module
Power - Output 21dBm
Voltage - Supply 3V ~ 4.6V
Serial Interfaces ADC, I2C, I2S, PCM, UART, USB
RF Family/Standard Cellular, Navigation
Operating Temperature -40degC ~ 85degC

Getting Started

Start with the manufacturer evaluation kit or a carrier-specific dev board to validate network registration, bands, and GNSS performance. Use a serial terminal or a USB connection to issue AT commands for network attach, PDP context, and GNSS control. Prepare a clean power supply with sufficient peak current capability and follow SIMCom guidelines for antenna selection, SIM card insertion, and firmware updates.

Also Consider

SARA-R410M-02B u-bloxu-blox - u-blox SARA-R410M is a certified Cat M1/NB2 module with integrated GNSS options and strong global carrier certification support, making it a robust alternative for cellular IoT.