M5Stack Unit NB-IoT2 Module SIM7028

With the M5 Stack Unit NB-IoT2 Module SIM7028, you get a powerful wireless communication module that is suitable for global Cat-NB frequency bands. The integrated SIM7028 communication module enables a stable and high-quality connection thanks to serial communication and the external SMA antenna interface. This module supports multi-band NB-IoT network connections, ensuring wide applicability worldwide. It is specifically designed for applications with low latency and low throughput and offers excellent power management capabilities, making it ideal for long-term deployments. Perfect for IoT applications such as smart metering, remote control, asset tracking, remote monitoring, telemedicine, and bike-sharing.

Features:

The module supports global Cat-NB frequency bands.
The strong signal reception capability ensures stable connections.
It features an external SMA antenna interface.
Serial communication occurs via UART with 115200bps.
The data transfer rate is 127 kbps (downlink) and 159 kbps (uplink).
It supports multiple network protocols such as TCP, UDP, HTTP, and MQTT.

Application Examples:

Remote control of devices
Asset tracking for monitoring valuables
Remote monitoring of sensors and systems
Use in bike-sharing systems
Telemedicine for remote patient monitoring

Documentation:

Technical Specifications:

Manufacturer: M5Stack
Manufacturer SKU: U111-B
Communication module: SIM7028
Supported Cat-NB bands: B1/B2/B3/B4/B5/B8/B12/B13/B14/B17/B18/B19/B20/B25/B26/B28/B66/B70/B85
Network protocols: TCP, UDP, HTTP, TLS, DTLS, DNS, NTP, PING, LWM2M, COAP, MQTT, MQTTS, SSL
Communication method: UART 115200bps
Power consumption:
Standby power: DC5V/3.1mA
Operating power: DC5V/36mA
Dimension: 71 x 25 x 9mm
Weight: 26g