Our Maduino zero NB-IoT is equipped with the SIM7080G module, based on controller ATSAMD21G18, which is Arduino Zero compatible, it has strong extension capability with rich interfaces including I2C/SPI/UART/18*GPIO etc. The Maduino zero NB-IoT is suitable for IoT applications that need low latency, Low throughput data communication in a variety of radio propagation conditions, such as smart-home, metering, asset tracking, remote monitoring, E-health etc.

This board support NB-IoT (NarrowBand-Internet of Things), Cat-M (aka eMTC, enhanced Machine Type Communication), and GNSS (Global Navigation Satellite System) module, it can be used with standard Arduino IDE, It supports multiple NB-IoT frequency band, and supports communication protocols like HTTP/MQTT/LWM2M/COAP, etc.

What is NB-IoT

NB-IoT (NarrowBand-Internet of Things) is a cellular standard developed by 3GPP to enable low-power, wide area network connectivity for IoT devices. It is optimized for providing wide coverage and enhanced indoor penetration to stationary IoT sensors and meters.

NB-IoT completed standardization in 3GPP Release 13 and can be deployed in in-band, guard-band or standalone modes without requiring gateways like LoRaWAN. NB-IoT devices connect directly to cellular base stations.

The NB-IoT communication standard lets IoT devices operate via carrier networks, either within an existing Global System for Mobile (GSM) communication carrier wave, in an unused guard band between Long-Term Evolution (LTE) channels or independently.

One of the goals of NB-IoT is to boost the coverage extension beyond what existing cellular technologies offer. To do that, NB-IoT offers transmission repetitions and different bandwidth allocation configurations in uplink transmission.

NB-IoT can enable a broad range of new IoT devices and services. It reduces the power consumption of connected devices while increasing system capacity and bandwidth efficiency, particularly in locations that aren't easily covered by traditional cellular technologies. NB-IoT-connected devices can have a battery life of more than 10 years for many use cases.

Benefits of NB-IoT

Higher data rates compared to LoRaWAN
Cellular-level security and reliability
Low power consumption
Enhanced coverage and range
Massive number of connections
Low device and deployment cost

Features:

ATSAMD21G18, 32-Bit ARM Cortex M0+
Interface: I2C/SPI/UART/18*GPIO
Onboard USB interface, to test AT Commands, get GPS positioning data, and so on
Supports communication protocols such as TCP /UDP /HTTP /HTTPS /TLS /DTLS /PING /LWM2M /COAP /MQTT.
Onboard USB interface, to test AT Commands, get GPS positioning data, and so on.
USB supply voltage range: 4.8~5.5V, 5.0V Typically
Battery supply voltage range: 3.4~4.2V, 3.7V Typically
Arduino Zero platform, Arduino IDE compatible
SD card socket
Windows and Raspberry Pi support